Revision of some ophiuroid records (Echinodermata: Ophiuroidea) from Argentina

• Published in: Zootaxa
• Main Authors: BROGGER, MARTIN I., O'HARA, TIMOTHY D.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Mangolia Press 2015
• Subjects: Brittle stars; Ophiacanthidae; Amphiuridae; Amphioplus; Amphilepis; Ophiactis; Echinodermata; Argentina; Antarctic; The Antarctic; Antarctic Peninsula; Antarc*; Antarctica
• Online Access: https://www.mapress.com/j/zt/article/view/zootaxa.3972.3.8; https://doi.org/10.11646/zootaxa.3972.3.8

The taxonomy of some ophiuroids reported from off Argentina, western Antarctica and the SW Atlantic Ocean is reviewed. The species Amphilepis sanmatiensis, known only from the small holotype, is a synonym of Amphioplus lucyae. This synonymy removes the only reported endemic ophiuroid from Argentina. The species name “Ophiacantha ingrata Koehler, 1923” used for specimens from South Georgia is invalid; the specimens are likely to belong to one of two cryptic species within the O. vivipara complex. Specimens of Amphiura joubini reported from Argentina are re-identified as Amphiura princeps, and specimens of Ophiactis amator from the Antarctic Peninsula are re-identified as Ophiactis asperula.