User:Joe.Perez/sandbox

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Contents

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• 116FEB2017 - Notes on Cephalochordate Page
• 223FEB2017
• 3Feeding (original)
• 4Feeding (edited)
• 51MAR2017 - Dissection organisms
• 67MAR2017 - Group Dissection Plan
• 7Lateral Line:
• 8Dissection Group Article Drafts
• 921MAR2017 - Perch Lab Group Dissection Game Plan
• 1023MAR2017 - Peer Review Comments/Copy Edits
• 11Week 9: Peer Review Feedback
• 12Liz Aguilar (Operculum Draft Edit)
• 13Draft #2 (4/12/17)
• 14References

16FEB2017 - Notes on Cephalochordate Page

• The feeding section is quite underdeveloped and is cited with only one reference. The Lancelet page covers the digestive system, however the process of feeding can be found in our text book (pp. 62).
  • The only comment on the talk page asked for defining the wheel organ and atriopore
    • Wheel organ - the name given for the tracts that house the cilia. The coordinated movement of cilia resemble rotational motion within the oral hood= "wheel"
    • Atriopore - the posterior exit for filtered water

• I feel that the body plan can be explain more, and a figure can possibly aid in showing where the 5 chordate synapomorphies are present in adults. The listed characteristics referencing its body plan are very limited and poorly worded. This is already covered in the Lancelet's Wikipedia page.

Overall:

• The article is extremely underdeveloped, and contains vague and simple sentence structure.
• The references are all from within the last 15 years.

17FEB2017 - Wikipedia Critique Group Notes

• Notes to add more information on general body structure
• Help answer the comment regarding the "feeding" section

What we will add to the Talk page (Draft)

• Hello, to answer your question on the feeding section, the wheel organ is the name for the tracts that contain the cilia. The cilia movement resembles the rotation of a "wheel" hence the name wheel organ. The atriopore is the final exit point for the filtered water.
  • Source:
• It was noted that there is a good amount of information missing (e.g. morphology and development).

Please refer to the link provided. It is a possibly resource to start looking at other information to include:

• http://www.newworldencyclopedia.org/entry/Cephalochordata
• From this source, it is suggest that adding information regarding general cephalochordate development, and adult morphology would be beneficial. An open source image can be found under "Physical Features" in the link provided which would also aid with the issue of lacking visual elements.

• Overall, the page does need to be rewritten to add levels of complexity and more clarification. For example, "hard parts" may be expanded upon. Are there specific examples of hard parts that are more readily fossilized?

23FEB2017

Editing the "Feeding" section for Cephalochordate page

Feeding (original)

Cephalochordates possess buccal cirri, which assist in the movement of food into the buccal cavity; a specialized wheel organ is situated at the dorsal and posterior end of the cavity. This wheel organ is composed of epithelial cilia responsible for drawing in food; behind this organ is the velum, which acts as a filter, From here water/food is sucked back into the pharynx, and excess water is pumped out through the pharyngeal slits. From the pharynx, water is passed into the atriopore and then excreted from the body. 

• Article notes:
  • Wheel organ at dorsal/posterior end of buccal cavity (contain buccal cirri)
    • draw in/move food in through mouth
    • velum = food filter
    • pharynx = draws in water/food -->pharyngeal slits = pump out excess water --> water passes through atriopiore = final exit
• Textbook notes:
  • feeding system = filter feeding
  • diet = microorganisms/phytoplankton
  • Oral hood = food entrance --> buccal cirri act like sieve for larger particles
  • mouth/pharynx contains tracts of cilia --> allow for food movement
    • the action of cilia resemble motion of wheel = called "wheel organ"

• food particles stick to mucus on pharyngeal bars --> brought to epibranchial groove on dorsal side --> transferred to gut
• final exit = atriopore --> release excess water

Feeding (edited)

Cephalochordates utilize a filter feeding system to consume microorganisms. The oral hood serves as the entrance for food particles and possesses buccal cirri, which assist in sifting out larger food particles before entering the buccal cavity. Epithelial cilia lining the mouth and pharynx form a specialized wheel organ situated at the dorsal and posterior end of the cavity. The motion of the cilia resemble the motion of a turning wheel, hence the organ's name, and transports the captured food particles. Behind this organ is the velum, which acts as an internal filter before entering the pharynx. The food particles adhere to secreted mucus on the pharyngeal bars before being brought to the epibranchial groove on the dorsal side of the pharynx. Following this, the food is transferred to the gut, and excess water is pumped out through the pharyngeal slits. This excess water passes through the atriopore and then excreted from the body.

1MAR2017 - Dissection organisms

1. Perch: I want to work with the perch as my top choice becauuse my dad and I go fishing for ocean perch annually, so I have been around these fish and have gutted them, but I feel that dissecting them, and studying their anatomy will give me a new appreciation and respect for these organisms.
   • Sub articles: Operculum (fish), Nostril, Dorsal fin
2. Garter Snake: I have had several encounters with garter snakes, and I feel that having this as my project organism would be a wonderful opportunity to really test my dissection skills.
   • Sub articles: Duvernoy's gland, Diurnality, Kleptothermy
3. Chimera: Being that I have never seen a chimera prior to this class, I am very interested in taking this opportunity have my "first encounter" with this organism include my dissection and in-depth study of its anatomy.
   • Sub article: (Venomous) Spine, Clasper, Egg case

7MAR2017 - Group Dissection Plan

• Editing topics: dorsal fin, operculum,nostril/ctenoid scales
• Liz - operculum

Notes:(Plan for the development of this wiki page)The wiki page associated with the operculm has minimal information of its structure and function. I would like to expand on this page by providing information from journal articles and pictures of the Perch's operculum from our dissecting project. I would also like to break up the page into different components to provide a better understanding to the reader. There will be a introduction, developmental, anatomy and functions section.

Sources:

http : www.bioone.org/doi/pdf/10.1643/CG-08-059[3]: This article provides some information on the anatomy of the operculum. I will be able to start an anatomy section and describe some of the mechanisms involved.

http://www.bioone.org.ezproxy.plu.edu/doi/pdf/10.1080/02724634.2012.680325[4]±: This article provides information of the different categories and morphological associated with the operculum. It also describes the distinctions of the Operculum in the Furo muensteri. With this article I can examine different distinctions in the Furo muensteri vs the Perch and collect data. This article provides measurements of the Furo muensteri operculum. I can take measurements of the perch's operculum and find sources of online that attribute to the size of the Perch's operculum in order to build a phylogeny based on the morphological species concept and add this to the wiki pages in order to demonstrate the differences in phenotype structure in the Operculum.

Lateral line system: Notes: As a group we will be editing the lateral line page while also trying to connect it to the Perch. I would like to add some anatomical pictures from the Perch's lateral line system to this page.

Sources: http://web.a.ebscohost.com.ezproxy.plu.edu/ehost/pdfviewer/pdfviewer?sid=7070e90d-3dbb-4728-b557-086b82c04b37%40sessionmgr4009&vid=1&hid=4101[5]: This source is crucial in adding a developmental section to this wiki site, in order to provide a better understanding to the readers studying the lateral line. Liz0618 (talk) 18:00, 10 March 2017 (UTC) -

Connor - ctenoid scale

Notes:

• -ctenoid scales are only a subset of the broader Fish scale page, so creating a separate page for it may be a possibility? section regarding ctenoid scales is very short... possible sections to include:
  • evolution
  • go into more detail regarding the variation between crenate, spinoid, true ctenoid scales
  • scale sexual dimorphism
  • development

References:

• -http://mapress.com/j/zt/article/view/zootaxa.4196.1.6/9422 (Scale ontogeny in the cardinal fish family Apogonidae)
• -http://web.a.ebscohost.com.ezproxy.plu.edu/ehost/pdfviewer/pdfviewer?vid=2&sid=3e20c0c6-d0d1-4ded-a3e2-234668343340%40sessionmgr4006&hid=4209 (Sexual dimorphism in scales of marbled flounder...)

• http://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1452&context=masters_theses_2 (Genetic analysis of cichlid scale morphology)

• Joe - dorsal fin
  • notes: The dorsal fin page is considered a "start", and the article has limited information, and primarily focuses on function. The page notes the research use of dorsal fins (identify cetaceans), but what other research uses do they provide? Also, the talk page notes there is a lack of information regarding the materials that make up the dorsal fin. What tissues are they derived from? What about adding some development section that describes the origins of these fins for both fishes and mammals?
    • dorsal fin not just for stabilization - work w/ caudal/anal fins to brake
    • considered median/unpaired fin
    • research from 2014 indicated the potential use of dorsal spines to effectively evaluate age as a non-lethal alternative to otolith analysis
  • sources:
    • development - http://web.a.ebscohost.com.ezproxy.plu.edu/ehost/pdfviewer/pdfviewer?sid=f0a8d06f-1af1-4706-a975-17edbb008f89%40sessionmgr4009&vid=1&hid=4106

Lateral Line:

Sources:

http://www.sciencedirect.com/science/article/pii/S0960982209009117 (This article could be used for developmental information)

I think adding a new image or figure may be helpful. I think we can use our perch to look at its lateral line. Also, I'm curious to see if we can take a cross section of a lateral line canal, to see how it relates to deep muscle structures.

Dissection Group Article Drafts

Article Drafts: Dorsal Fin (Joe Perez)

• Notes: Looking around Wikipedia, "dorsal fins", also pop up in Fish Fin article, but has very minimal information. I think that distinguishing the dorsal fin (for fish) as unpaired/medial fins is important due to its developmental trajectory. I don't think that starting a new article differentiating mammal and fish dorsal fins is necessary, but it may be insightful to include sections highlighting each. I would say that the fun structures for fish and mammals are analagous b/c they have a similar appearance and function, but no common ancestry. It's problematic that they included a mammalian dorsal fin image, but it makes sense since it is easily recognizable for individuals using Wikipedia. I need to find sources that discuss the mammalian dorsal fin, so I can potentially add a section in this page w/o making a new one. My draft for now will focus on teleost fish dorsal fins.

• Draft: A dorsal fin is classified as a medial, unpaired fin that is located on the dorsal side of aquatic vertebrates. In bony fish, their fins are made of dermal fin rays known as lepidotrichia and endoskeletal base with associated muscles for movement. During embryogenesis, the dorsal fin, and other medial fins are derived from the caudal fin fold, which itself is made of a mix of peridermis and epidermis. Larval development and skeletogenesis of the median fins of adult teleost fish result in pterygiophores, which is the internal skeletal element that supports the fin. The pterygiophores have proximal, medial, and distal portions. The distal portions are comprised of cartilage whereas the elongated proximal and medial portions are made of bone.These serve as attachments points for expaxial muscle, which ultimately works to aid in mobility.

Response to draft:

The draft is neutral, has good sources of information, and is very informative. I think that some words could be simplified so that the general public could understand this process a little bit better. Specifically, directional vocabulary. Ayersmm

Article Drafts: Ctenoid Scales (Connor Smith) is

• Notes: There is only a very short section for ctenoid scales throughout Wikipedia. Instead of making new sections/subsections within that section, I think it would be most beneficial to imbed valuable information in various parts throughout the section that is already made. I think adding 3 to 4 sentences regarding development is important as it explains how the ctenoid scales came into existence, and can be added in the second half of the section. Also, the picture in this section doesn't do a very good job showing the physical characteristics of the ctenoid scales. If I can get a good image from the perch we are dissecting, I believe it could be very advantageous to add that into the section. Below is my draft for the development addition:

• Draft: Ctenoid scales, similar to other epidermal appendages, originate from placodes and specific cellular differentiation makes them exclusive from other appendages that arise from the integument. The development process begins with an accumulation of fibroblasts between the epidermis and dermis, forming the papillae. After more differentiation, collagen fibrils start to organize themselves in the dermal layer, which leads to the initiation of mineralization. The circumference of the scales grows first, followed by thickness when overlapping layers mineralize together.

response to draft:

You wrote in a neutral manner and had a good sources for your information. However, I think that some words could be more specific. For example, when you say "more differentiation" describe what you mean by that. Describe what you mean by "specific cellular differentiation". If you can find pictures of this process, that would look really great with your section. Ayersmm

Article Drafts: Operculum (Elizabeth Aguilar)

• Notes: There are components of the operculum that are discussed on the wiki page (opercle, preopercle, interopercle, and subopercle), but it does not specify the position and placement of these components. I think it is important to start of by educating readers on the differences in position, anatomy and morphology before expanding and creating a developmental section.

• Draft: The operculum has many components that have different positions and anatomical & morphological appearances. There is the pre-operculum, operculum, suboperculum, and the interoperculum. In smaller species these components are more basic in relation to their placement in larger species where they are tubercle. The pre-operculum is crescent-shaped in all Halecomorphi which are known to be bony fish, minus the Parasemionotiformes species.Parasemionotiformes pre-operculum anatomy differs in its ovoid shape and is known to be long and narrow. The operculum is the largest bone out of the other components. It is broad, rectangular in shape, and circular shaped dorsal margins. Its ventral margins are oriented anterior where the suboperculum is ventral from its position. The pre-operculum also has a series of ridges that are directed posterodorsally to the organisms canal pores. The sub-operculum has long concave shaped dorsal margins and convex posterior margins associated with this bone. It has very short anterodorsal and anteroventral margins and boarders the operculum dorsally. The inter-operculum is triangular shaped and boarders the suboperculum posterodorsally and the preoperculum anterodorsally. It is also known to be short on the dorsal and ventral surrounding boarders. NOTE: I would like to add a figure to display these positions, anatomy and morphology. I want to add pictures from our dissection in lab by locating these components and highlighting these specific areas.

Response to draft:

I think that you have very neutral content. The article draft could be more concise, though. Because of its length, it is slightly difficult to follow. Mostly, because it has a lot of information in it. I think it would be worth it to separate out the aspects of the Operculum and then describe. I think you did a really good job describing the aspects, however.your sources of information were good. Ayersmm

21MAR2017 - Perch Lab Group Dissection Game Plan

1. Cut section of skin to observe lateral line under dissecting microscope
2. Stain ctenoid scale and possibly skin sample for lateral line
   • Possibly add photos of stains to existing pages
   • Email Dr. Carlson to possibly help with this
3. Fish eye dissection
4. Expose operculum
5. Expose internal anatomy to add to Perch page
6. Study mounted skeleton for dorsal fin bones

Study pages in Perch dissection guide: 11, 15, 17, 23, 25, 29, 31, 53

23MAR2017 - Peer Review Comments/Copy Edits

• Salamander:
  1. Cassidy: Overall, I think you did a good job of discussing what improvements may be added to the article. I believe that the additions of dentary and other feeding structures will prove to be beneficial in expanding the contents of the article. Additionally, I agree with the comment above suggesting a citation for your statement regarding the "strictly grasping" function for the teeth. Although this may be true (I personally don't know), what other ways are you able to phrase? I suggest a statement such as, "Teeth are primarily used for grasping prey, and typically lack a crushing function." as a way to hedge some of the assertions in the original statement. Other than that, you have a good plan moving forward.
  2. Josh: I think you have a good plan for expand on the anatomical structures of the salamander without overwhelming yourself by focusing in on the specific structures found in your organism. Although your statement in the 2nd bullet point is informative, I think you should continue to cite your sources that you listed below your draft section. I would also suggest looking at a different way to phrase your opening sentence saying, "Most salamanders have both thyroid and parathyroid glands..." Citing this would help alleviate some of the subjectivity it implies, but rephrasing the statement overall I think would be more effective.
  3. Jake: All your information is clearly represented, and I feel that your writing is fairly easy to understand, making it sufficient for an actual Wikipedia page. You use various terms like "cutaneous" and "keratinocytes", which may be novel terms to some individuals reading your article. I would suggest linking key terms such as these to their related Wikipedia pages. Also, I was wondering where you got most all of your information. I saw the citation at the end of your mucous gland section, but does that source cover the entire draft? Be sure to actively site your sources to help prevent any potential issues with plagiarism accusations.
  4. As a whole group, I believe you all are doing good work with your article selections and proposed modifications.

• Sparrow:
  1. Bursa of Fabricius: I think this part of the article has great language for potential readers of Wikipedia. Under the anatomy section, I would try to rephrase your sentence beginning with, "The bursa of fabricius is surrounded by 10,000 plus follicles..." and replace it with something like, "The bursa of fabricius is surrounded by more than 10,000 follicles..." to maintain an elevated level of language. I do think you could expand more aspects of your function section since some readers may have limited knowledge of immune system components. I do like how you added the links to other pages, but I would just add more information to your page itself to make it easier on the reader.
  2. Avian Ear: Although this section is relatively short, I think it is quite informative. I agree with an earlier comment with suggesting finding more sources on the topic. I reviewed your reference, and it was from 1994, so maybe find a more updated article? Similarly to the previous section in your drafts section, I think the language is at a sufficient level for Wikipedia, however, I would comb through to make sure it is grammatically free of errors.
  3. Digestive System: I think this piece was written well, and I especially appreciated the links to existing articles in Wikipedia. I'm just curious as to how else you can add to this section to beef it up a little. Would an image of the internal anatomy be helpful to highlight the locations of the gizzard and proventriculus?
  4. In general, I feel that the drafts you all have are written well for a general Wikipedia audience, and have great potential for additional information.

Week 9: Peer Review Feedback

Dorsal Fin (Joe):

• Feedback: From the comments, it appears the structure of my draft is sufficient as well as the general content. What I need to be wary of is the use of jargon (i.e. pterygiophores, proximal, medial, distal, epaxial, embryogenesis, dorsal, etc.). Visualizing these terms may be difficult, so it was suggest that an image may be used to add some context to these terms. Likewise, linking the terms to existing pages may be a way to mitigate this problem.
• Plan: From here, I am hoping to take an image of the mounted skeleton that is in the lab and label the elements that make up the dorsal fin. This would allow me to identify the components of the dorsal fin to serve as a visual aid. I have also found some content on pterygiophores found in fish anatomy page. I will also link the other terms to their respective pages: epaxial, embryogenesis, dorsal, proximal, medial, distal, and epidermis to aid individuals in the general public who may not be aware of their definitions.

Ctenoid Scales (Connor):

I agree that I use too much jargon in my draft without either explaining it in more detail, using a picture, or linking it to an existing page. I also agree with Ayersmm that a few times I used phrases that were a bit too ambiguous and need some clarifying. I think this is due to paraphrasing things I don't fully understand. I believe a good figure would help with my draft as well (although I haven't found a figure for ctenoid development thus far), and I am also in the process of getting some scales stained from our perch that I will hopefully be adding to the page. Below is my original draft compared to my updated draft, with those feedback responses in mind. I have tried to clarify my ambiguous phrases, and embedded links to jargon I felt appropriate.

Original: Ctenoid scales, similar to other epidermal appendages, originate from placodes and specific cellular differentiation makes them exclusive from other appendages that arise from the integument. The development process begins with an accumulation of fibroblasts between the epidermis and dermis, forming the papillae. After more differentiation, collagen fibrils start to organize themselves in the dermal layer, which leads to the initiation of mineralization. The circumference of the scales grows first, followed by thickness when overlapping layers mineralize together.

Updated: Ctenoid scales, similar to other epidermal appendages, originate from placodes and distinctive cellular differentiation makes them exclusive from other appendages that arise from the integument. Development starts near the caudal peduncle, along the lateral line of the fish. The development process begins with an accumulation of fibroblasts between the epidermis and dermis. Collagen fibrils begin to organize themselves in the dermal layer, which leads to the initiation of mineralization. The circumference of the scales grows first, followed by thickness when overlapping layers mineralize together.

Liz Aguilar (Operculum Draft Edit)

Expanding summary based on critiques: I realized that I may have made this a little complex for my readers to understand. I need to specify on what I mean by structure and function. By structure, I mean the anatomy and morphology of the operculum. By function I mean the specific function each serves. Finally, by position I mean the placement of the operculum in each organism. The phylogenetic tree would be based on many organisms not just two. That needs to be changed. I'm still contemplating on how I'm going to do this.I really like the Idea that is why I'm going to see how I will be able to approach this, for now I will leave that idea up.

Original passage: There are components of the operculum that are discussed on the wiki page (opercle, preopercle, interopercle, and subopercle), but it does not specify the position and placement of these components. I think it is important to start of by educating readers on the differences in position, anatomy and morphology before expanding and creating a developmental section. I also realized based on the feed back that I should of talked about the operculum first then went on to discussing the rest.

Original draft: The operculum has many components that have different positions and anatomical & morphological appearances. There is the pre-operculum, operculum, suboperculum, and the interoperculum. In smaller species these components are more basic in relation to their placement in larger species where they are tubercle. The pre-operculum is crescent-shaped in all Halecomorphi which are known to be bony fish, minus the Parasemionotiformes species. Parasemionotiformes pre-operculum anatomy differs in its ovoid shape and is known to be long and narrow. The operculum is the largest bone out of the other components. It is broad, rectangular in shape, and circular shaped dorsal margins. Its ventral margins are oriented anterior where the suboperculum is ventral from its position. The pre-operculum also has a series of ridges that are directed posterodorsally to the organisms canal pores. The sub-operculum has long concave shaped dorsal margins and convex posterior margins associated with this bone. It has very short anterodorsal and anteroventral margins and boarders the operculum dorsally. The inter-operculum is triangular shaped and boarders the suboperculum posterodorsally and the preoperculum anterodorsally. It is also known to be short on the dorsal and ventral surrounding boarders.[7] NOTE: I would like to add a figure to display these positions, anatomy and morphology. I want to add pictures from our dissection in lab by locating these components and highlighting these specific areas.

Passage with corrections: The operculum has many components that have different positions in it's anatomical & morphological appearances. The anatomical anatomy is related to the placement of this bone in relation to the aquatic species body and morphological appearances are the form and shape of the operculum. There is the pre-operculum, suboperculum, and the interoperculum which make up the operculum. In smaller bony fish species these components are more basic in relation to their placement in larger aquatic species where they are tubercle. The operculum is the largest bone out of the other components. It is broad, rectangular in shape, and has circular shaped dorsal margins. Its ventral margins are oriented anterior where the suboperculum is ventral from its position. The pre-operculum is crescent-shaped in all Halecomorphi which are known to be bony fish, minus the Parasemionotiformes species. Parasemionotiformes pre-operculum anatomy differs in its ovoid shape and is known to be long and narrow. The pre-operculum also has a series of ridges that are directed posterodorsally to the organisms canal pores. The sub-operculum has long concave shaped dorsal margins and convex posterior margins associated with this bone.It has very short anterodorsal and anteroventral margins and boarders the operculum dorsally. The inter-operculum is triangular shaped and boarders the suboperculum posterodorsally and the preoperculum anterodorsally. It is also known to be short on the dorsal and ventral surrounding boarders.[7] NOTE: I would like to add a figure to display these positions, anatomy and morphology. I want to add pictures from our dissection in lab by locating these components and highlighting these specific areas. In order to make this less complex for readers I will post a picture describing the placements of the bones and link the pages corresponded. For example, a picture showing the direction of ventral on the vertebrae I am dissecting and ten I will link the word ventral to the wiki page "Anatomical terms of location": https://en.wikipedia.org/wiki/Anatomical_terms_of_location Liz0618 (talk) 05:08, 8 April 2017 (UTC)

Draft #2 (4/12/17)

Connor

Draft #2: Ctenoid scales, similar to other epidermal structures, originate from placodes and distinctive cellular differentiation makes them exclusive from other structures that arise from the integument. Development starts near the caudal peduncle, along the lateral line of the fish. The development process begins with an accumulation of fibroblasts between the epidermis and dermis. Collagen fibrils begin to organize themselves in the dermal layer, which leads to the initiation of mineralization. The circumference of the scales grows first, followed by thickness when overlapping layers mineralize together.

Images: I still haven't found a picture of ctenoid scale development, but we are meeting with Dr. Carlson this week to get get scales from various parts of our perch stained. We will then take pictures of that to add to the page.

Joe

Draft #2: A dorsal fin is classified as a medial, unpaired fin that is located on the midline of the backs of aquatic vertebrates. In bony fish, the fins are made of 2 main components. The first component is the dermal fin rays known as lepidotrichia, and the endoskeletal base with associated muscles for movement is the second. During embryogenesis, the dorsal fin, is derived from the caudal fin fold, which itself is made of a mix of peridermis and epidermis. Larval development and formaton of the skeleton of the supporting the median fins of adult teleost fish result in pterygiophores, which is the internal skeletal element that supports the fin. The pterygiophores have proximal, medial, and distal portions. The distal portions are comprised of cartilage whereas the elongated proximal and medial portions are made of bone.These serve as attachments points for expaxial muscle, which ultimately works to aid in mobility.

Liz

Draft #2: The operculum has many components that have different positions in it's anatomical & morphological appearances. The anatomical anatomy is related to the placement of this bone in relation to the aquatic species body and morphological appearances are the form and shape of the operculum. There is the pre-operculum, suboperculum, and the interoperculum and operculum. In smaller bony fish species these components are more basic in relation to their placement in larger aquatic species, where they are known to be tubercle in shape. The operculum is the largest bone out of the other components. It is broad, rectangular in shape, and has circular shaped dorsal margins. Its ventral margins are oriented anterior where the suboperculum is ventral from its position. The pre-operculum is crescent-shaped in all Halecomorphi which are known to be bony fish, minus the Parasemionotiformes species which are a subgroup within the Halecomorphi species. Parasemionotiformes pre-operculum anatomy differs in its ovoid shape and is known to be long and narrow. The pre-operculum also has a series of ridges that are directed posterodorsally to the organisms canal pores. The sub-operculum has long concave shaped dorsal margins and convex posterior margins associated with this bone.It has very short anterodorsal and anteroventral margins and boarders the operculum dorsally. The inter-operculum is triangular shaped and boarders the suboperculum posterodorsally and the preoperculum anterodorsally. It is also known to be short on the dorsal and ventral surrounding boarders. NOTE:I would like to add a figure to display these positions, anatomy and morphology. I want to add pictures from our dissection in lab by locating these components and highlighting these specific areas. In order to make this less complex for readers I will post a picture describing the placements of the bones and link the pages corresponded. For example, a picture showing the direction of ventral on the vertebrae I am dissecting and ten I will link the word ventral to the wiki page Anatomical terms of location.

Image Drafts: 4/26/17

Basals and radials of Perca pterygiophore.

• Lateral line: File:Lateral Line Labeled (2).jpg
• Dorsal fin:

References

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3. ^ Jump up to:^{a b c d e f g} 
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5. ^ Jump up to:^a b c d 
6. ^ Jump up to:^a b c d 
7. ^ Jump up to:^{a b c d e f g h i j} Lane, Jennifer (2012). "Revision of Furo muensteri (Halecomorphi, Ophiopsidae) from the Upper Jurassic of Western Europe, with Comments on the Genus". BioOne. 42: 799–819.