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.

中文翻译：

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来自威德尔海深海深处的 DIAPHANA 新种，南极和 DIAPHANA INFLATA（STREBEL，1908 年）在高南极（腹足纲：上鳃类）的首次记录

Diaphana haini n.sp. 描述来自南极洲。D. haini 的深度范围约为 400 至 2100 m，是该属中第二个伸入深海的南极物种，另一个是 D. inflata (Strebel, 1908)。系统发育分析允许 D. haini 被纳入 Schiøtte (1998) 该属的分支图中，从而澄清其历史动物地理。威德尔海 D. inflata 的记录扩大了其已知分布范围。记录的地理分布现在从南乔治亚到南极大陆，深度范围大大扩展，从 252-310 m 到 1645 m。