Chirostylidae Ortmann, 1892

Schnabel, Kareen E. & Ahyong, Shane T., 2010, A new classification of the Chirostyloidea (Crustacea: Decapoda: Anomura), Zootaxa 2687 (1), pp. 56-64 : 58

publication ID

https://doi.org/ 10.11646/zootaxa.2687.1.4

DOI

https://doi.org/10.5281/zenodo.5308578

persistent identifier

https://treatment.plazi.org/id/F868FC00-C649-FFC9-7C8D-FE9EFE38A7D7

treatment provided by

Felipe

scientific name

Chirostylidae Ortmann, 1892
status

 

Chirostylidae Ortmann, 1892 View in CoL

( Fig. 2C–F, I–L View FIGURE 2 )

Diptycinés A. Milne-Edwards & Bouvier, 1894: 296, 312; 1897: 116 [vernacular name, unavailable].

Diptyciens A. Milne-Edwards & Bouvier, 1894: 299. — Bouvier, 1896: 312 [vernacular name, unavailable].

Diptycinae Bouvier, 1896: 312. — A. Milne-Edwards & Bouvier, 1899: 71, 87; 1900: 350.

Chirostylidae Ortmann, 1892: 244 View in CoL .

Uroptychidae Alcock, 1901: 236, 278.

Diagnosis. Carapace surface smooth, tuberculate or spinose but without transverse striae, posterolateral margin not distinctly defined or greatly inflated; rostrum variously shaped; supraocular spines absent. Anterolateral margin of abdominal somite 2 without prominent, anterolaterally directed spine. Sternite 3 not strongly produced anteriorly. Eyes well developed. Basal antennular article with distolateral spines. Antennal peduncle consisting of 5 articles; acicle present or absent. Mandibular cutting edge calcified, strongly serrated along its length. Maxilliped 1 without epipod; exopod flagellum present or absent, not annulated. Maxilliped 3 to pereopod 4 each with 2 arthrobranchs (well-developed or vestigial on maxilliped 3). Pereopod 5 with 1 arthrobranch only. Pereopods 2–4 with pleurobranch. Male pleopods 1 and 2 present. Male pleopods 3–5 vestigial or absent.

Type genus. Chirostylus Ortmann, 1892 View in CoL , by original designation.

Composition. Chirostylus Ortmann, 1892 View in CoL , Gastroptychus Caullery, 1896 View in CoL , Hapaloptyx Stebbing, 1920 View in CoL , Uroptychodes Baba, 2004 View in CoL , Uroptychus Henderson, 1888 View in CoL .

Remarks. Pleopods 3–5 are absent in most male chirostylids, but are vestigial in some species of Gastroptychus (e.g., G. rogeri Baba, 2000 , and G. investigatoris ( Alcock & Anderson, 1899) , K. Baba, pers. com.; AM P53251, G. rogeri ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Chirostylidae

Loc

Chirostylidae Ortmann, 1892

Schnabel, Kareen E. & Ahyong, Shane T. 2010
2010
Loc

Chirostylidae

Ortmann, A. 1892: 244
1892
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