Bothragonus swanii
(Redirected from Rockhead (fish))
| Bothragonus swanii | |
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| A rockhead on top of a rock scallop at the Oregon Coast Aquarium. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Scorpaeniformes |
| Family: | Agonidae |
| Genus: | Bothragonus |
| Species: | B. swanii
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| Binomial name | |
| Bothragonus swanii (Steindachner, 1876)
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| Synonyms[1] | |
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Bothragonus swanii, the rockhead, deep-pitted poacher or deep-pitted sea-poacher,[2] is a fish in the family Agonidae.[3] It was described by Franz Steindachner in 1876, originally in the genus Hypsagonus.[4] It is found in the eastern Pacific Ocean from Alaska to Carmel Bay, California down to depths of 18 metres. It can also inhabit the intertidal zone. Males can reach a maximum total length of 8.9 centimetres.[3]
The species epithet "swanii" refers to James G. Swan of Port Townsend, Washington.[3] The rockhead spawns nearshore, during the months of January–May in the California Current region.[5] Its diet consists of benthic shrimp and crabs.[6]
References
[edit]- ^ Synonyms of Bothragonus swanii at www.fishbase.org.
- ^ Common names for Bothragonus swanii at www.fishbase.org.
- ^ a b c Bothragonus swanii at www.fishbase.org.
- ^ Steindachner, F. 1876 [ref. 4225] Ichthyologische Beiträge (V). [Subtitles i-v.]. Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.): 49-240, Pls. 1-15.
- ^ Spawning for Bothyragonus swanii at www.fishbase.org.
- ^ Food items reported for Bothragonus swanii at www.fishbase.org.
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