Description of a new subspecies Diastylis enigmatica rossensis (Crustacea: Peracarida: Cumacea) from the Ross Sea, Antarctica

• Published in: Helgoland Marine Research
• Language: English
• Published: Springer-Verlag 2010
• Subjects: Antarctica; Crustacea; Cumacea; Diastylidae; Ross Sea; Victoria Land; Antarctic; The Antarctic; Weddell Sea; Weddell; Italica; Wittmann; Antarc*
• Online Access: http://hdl.handle.net/2262/41944; https://doi.org/10.1007/s10152-008-0141-8

Abstract Diastylis enigmatica rossensis n. ssp. is described and illustrated on the basis of new specimens from the Antarctic shelf in the Ross Sea. The material was collected off the Victoria Land coast during the 19th Antarctic expedition of the Italian research vessel Italica in 2004. Diastylis enigmatica Ledoyer, 1993 was first obtained during the EPOS 3 campaign at Halley Bay in the Weddell Sea. A redescription based on further material from the Weddell Sea was published by Petrescu and Wittmann (Zool Med Leiden 77:557?630, 2003), which shows several differences to the newly collected material from the Ross Sea. The most obvious differences from Diastylis enigmatica rossensis n. ssp. to Diastylis enigmatica enigmatica Ledoyer, 2003 are the absence of four spines on the merus of the second pereiopod, a lower number of setae on the uropodal endopod, a gap between spines on the peduncle article 1 of antenna 1, and a higher number of articles in both flagella of antenna 1. phone: [phone] (Rehm, Peter) [e-mail] (Rehm, Peter) Animal Physiology, Universitat Hamburg, Biozentrum Grindel - Martin-Luther-King-Platz 3 - 20146 - Hamburg - GERMANY (Rehm, Peter) GERMANY Registration: 2008-10-14 Received: 2007-10-02 Revised: 2008-07-21 Accepted: 2008-10-06 ePublished: 2008-11-07