Stemmiulidae

Stemmiulidae
	Stemmiulus beroni, a West African species
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Myriapoda
Class:	Diplopoda
Subclass:	Chilognatha
Infraclass:	Helminthomorpha
Superorder:	Nematophora
Order:	Stemmiulida; Cook, 1895
Family:	Stemmiulidae; Pocock, 1894

Stemmiulida is an order of millipedes consisting of approximately 130 species, reaching up to 50 mm in length. It contains a single family, Stemmiulidae.

Description

Stemmiulids are small to medium sized millipedes, reaching a maximum length of 50 mm (2 in). The body tapers gradually, and is laterally compressed, so is taller than wide. A dorsal groove is present and runs from head to tail. The eyes consist of two large ocelli on each side of the head, and some members are capable of jumping.^[1]^[2] The living species lack Tömösváry organs, although a fossil species from the Miocene epoch possesses them.^[3]

Classification

Stemmiluda contains 6-10 living genera and at least one fossil genus, all in the family Stemmiulidae. Species estimates range from about 120 to 150 species.^[4]^[5] The taxonomy is controversial, with some authors lumping species into as few as three genera.^[5] The most liberal classification is presented below.^[6]

Diopsiulus
Eostemmiulus^[7]
Nethoiulus
Paurochaeturus
†Parastemmiulus (Early-Middle Miocene; Mexican amber)^[3]
Plusiochaeturus
Prostemmiulus
Scoliogmus
Stemmatoiulus
Stemmijulus
Stemmiulus

References

^ "Diagnostic features of Millipede Orders" (PDF). Milli-PEET Identification Tables. The Field Museum, Chicago. Retrieved 5 April 2014.
^ "Putative apomorphies of millipede clades" (PDF). Milli-PEET: Millipede Systematics. The Field Museum, Chicago, IL. 26 September 2006.
^ ^a ^b Riquelme, F.; Alvarado-Ortega, J.; Ramos-Arias, M.; Hernández, M.; Dez, I.; Lee-Whiting, T. A.; Ruvalcaba-Sil, J. L. (2013). "A fossil stemmiulid millipede (Diplopoda: Stemmiulida) from the Miocene amber of Simojovel, Chiapas, México". Historical Biology. 26 (4): 1–13. doi:10.1080/08912963.2013.778843. S2CID 85299484.
^ Sierwald, Petra; Bond, Jason E. (2007). "Current Status of the Myriapod Class Diplopoda (Millipedes): Taxonomic Diversity and Phylogeny". Annual Review of Entomology. 52 (1): 401–420. doi:10.1146/annurev.ento.52.111805.090210. PMID 17163800.
^ ^a ^b Shear, W. (2011). "Class Diplopoda de Blainville in Gervais, 1844. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness" (PDF). Zootaxa. 3148: 159–164. doi:10.11646/zootaxa.3148.1.32.
^ Sierwald, Petra, ed. (2006). "Nomenclator Generum Diplopodorum, Version 2. A complete listing of all genus-group names in the class Diplopoda from 1758 through 1999". Field Museum of Natural History. Retrieved 4 April 2014.
^ Mauriès, J. P.; Golovatch, S. I.; Geoffroy, J. J. (2010). "Un nouveau genre et une nouvelle espèce de l ordre Stemmiulida du Viet-Nam (Diplopoda) [A new genus and species of the order Stemmiulida from Vietnam]". Arthropoda Selecta. 19 (2): 73–80. doi:10.15298/arthsel.19.2.03.

[1] "Diagnostic features of Millipede Orders" (PDF). Milli-PEET Identification Tables. The Field Museum, Chicago. Retrieved 5 April 2014.

[PutativeApomorphies-2] "Putative apomorphies of millipede clades" (PDF). Milli-PEET: Millipede Systematics. The Field Museum, Chicago, IL. 26 September 2006.

[Riquelme2013-3] Riquelme, F.; Alvarado-Ortega, J.; Ramos-Arias, M.; Hernández, M.; Dez, I.; Lee-Whiting, T. A.; Ruvalcaba-Sil, J. L. (2013). "A fossil stemmiulid millipede (Diplopoda: Stemmiulida) from the Miocene amber of Simojovel, Chiapas, México". Historical Biology. 26 (4): 1–13. doi:10.1080/08912963.2013.778843. S2CID 85299484.

[4] Sierwald, Petra; Bond, Jason E. (2007). "Current Status of the Myriapod Class Diplopoda (Millipedes): Taxonomic Diversity and Phylogeny". Annual Review of Entomology. 52 (1): 401–420. doi:10.1146/annurev.ento.52.111805.090210. PMID 17163800.

[Shear2011-5] Shear, W. (2011). "Class Diplopoda de Blainville in Gervais, 1844. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness" (PDF). Zootaxa. 3148: 159–164. doi:10.11646/zootaxa.3148.1.32.

[6] Sierwald, Petra, ed. (2006). "Nomenclator Generum Diplopodorum, Version 2. A complete listing of all genus-group names in the class Diplopoda from 1758 through 1999". Field Museum of Natural History. Retrieved 4 April 2014.

[Maurièsetal2010-7] Mauriès, J. P.; Golovatch, S. I.; Geoffroy, J. J. (2010). "Un nouveau genre et une nouvelle espèce de l ordre Stemmiulida du Viet-Nam (Diplopoda) [A new genus and species of the order Stemmiulida from Vietnam]". Arthropoda Selecta. 19 (2): 73–80. doi:10.15298/arthsel.19.2.03.

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