A NEW SPECIES OF DIAPHANA FROM BATHYAL DEPTHS IN THE WEDDELL SEA, ANTARCTICA AND FIRST RECORD OF DIAPHANA INFLATA (STREBEL, 1908) IN THE HIGH ANTARCTIC (GASTROPODA: OPISTHOBRANCHIA)

• Published in: Journal of Molluscan Studies
• Main Authors: LINSE, KATRIN, SCHIØTTE, TOM
• Format: Text
• Language: English
• Published: Oxford University Press 2002
• Subjects: Articles; Antarctic; The Antarctic; Weddell Sea; Weddell; Antarc*; Antarctica
• Online Access: http://mollus.oxfordjournals.org/cgi/content/short/68/2/147; https://doi.org/10.1093/mollus/68.2.147

Diaphana haini n.sp. is described from Antarctica. With a depth range from about 400 to 2100 m, D. haini is the second Antarctic species of this genus to extend into the deep sea, the other being D. inflata (Strebel, 1908). Phylogenetic analysis has allowed D. haini to be incorporated within Schiøtte's (1998) cladogram for this genus and, thereby clarify its historical zoogeography. A record of D. inflata from the Weddell Sea extends its known distribution range. The recorded geographic distribution now ranges from South Georgia to the Antarctic continent, and the depth range is extended considerably, from 252-310 m to 1645 m.