Revision of the pentacrinid stalked crinoids of the genus Endoxocrinus (Echinodermata, Crinoidea), with a study of environmental control of characters and its consequences for taxonomy Author David, Jerome Author Roux, Michel Author Messing, Charles G. Author Ameziane, Nadia text Zootaxa 2006 1156 1 50 journal article 50584 10.5281/zenodo.172265 20ced0ab-42ec-4de6-bab0-b3da6529bae9 1175­5326 172265 Endoxocrinus ( Diplocrinus ) alternicirrus alternicirrus ( Carpenter, 1882 ) Figures 13 a–b. Synonymy: Pentacrinus alternicirra Carpenter 1882 : 167 ; Pentacrinus alternicirrus Carpenter, 1884 : 321 ; Endoxocrinus alternicirrus A.H. Clark, 1908b : 151 ; Cenocrinus ( Diplocrinus ) alternicirrus Döderlein, 1912 : 20 –21; Diplocrinus alternicirrus A.H. Clark, 1923 : 11 ; Endoxocrinus alternicirrus Rasmussen, 1978 : T857; Diplocrinus ( Diplocrinus ) alternicirrus Roux, 1980 : 119 ; Endoxocrinus ( Diplocrinus ) alternicirrus var. alternicirrus David, 1998: 203 (unpublished data); Endoxocrinus ( Diplocrinus ) alternicirrus Roux et al. 2002 : 820 . Emended diagnosis A subspecies of E. ( D. ) alternicirrus with 12–32 arms (mode 20), up to 15.3 cm long (mean 10.7 cm ); proximal brachitaxes contiguous; arm branching frequently endotomous; number of internodals per mature noditaxis 5–10 (mode 5, usually more than 50%); stalk length variable, up to 14 cm (mean 8.7 cm ); proximalmost diameter rarely more than 5.8 mm (mean 4.8 mm ); nodals bearing 1–5 cirri, usually 2 or 3 cirri alternately, those at one node corresponding to the place without cirri at the node immediately following or preceding; length of cirrals 1.4–2 mm (mean 1.7 mm ).

Type locality
Off Meangis (now Miangas) Island,	north	of	Sulawesi,	Indonesia,	at	a	depth	of	914	m.
Holotype: Holotype of the species.

Occurrence Central Pacific (Tahiti, Hawaii), western Pacific from Kermadec Islands and New Caledonia (David 1998) to Taiwan ( Améziane et al. 2005 ) and Japan ( Kogo 1998 ), at depths from 625 m to 1476 m .