| 發表於: 26-October-2008 at 2:55am | IP Logged
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以下摘自http://www.listserv.uga.edu/cgi-bin/wa?A2=ind0506a&L=conch-l&P=2696
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Date: Fri, 3 Jun 2005 11:42:50 -0400 Reply-To: Conchologists List <CONCH-L@LISTSERV.UGA.EDU> Sender: Conchologists List <CONCH-L@LISTSERV.UGA.EDU> From: Paul Callomon <callomon@ACNATSCI.ORG> Subject: Re: Conus milneedwardsi Content-Type: text/plain; charset=US-ASCII
A single live specimen of Conus aratispira (not kawamurai, which is a junior synonym) is known. It was taken in Sumiyo Bay in the Amami Islands, where I also dredged some fresh fragments in 1995 or so. It was reported on and figured by Yoshiba and Nobuhara in the publication 'Chiribotan' (1997, vol. 28, no. 1: 1-8, 2 plates. In Japanese with English abstract). I reviewed variation in C. aratispira (as C. kawamurai, as I hadn't seen the type of aratispira at the time) in La Conchiglia back in 1993 or so. C. aratispira seems to be morphologically distinct from C. milneedwardsi as the latter is understood in literature. It is smaller, and has a distinctive concave spire in mature adults. It may well be an isolated population descended from milneedwardsi, and in the continuing absence of a radular tooth, soft parts or DNA you can treat it as a separate species, a subspecies or just a form, as you wish. Regards, PC.
Paul Callomon Collections Manager Malacology, Invertebrate Paleontology and General Invertebrates Department of Malacology Academy of Natural Sciences 1900 Parkway, Philadelphia PA 19103-1195, USA Tel 215-405-5096 Fax 215-299-1170 Secretary, American Malacological Society On the web at http://erato.acnatsci.org/ams/ --------------------------------------------------------------------------------------------------
由Dr. Paul Callomon的描述,活殼確實是非常的稀有,正好符合我的觀察,也解決了我部分的疑惑.只是我不禁還是要問每年有這麼多Mitra takiisaoi, Strombus thersites.....為美軍潛水夫所抓,可是卻幾乎看到不到一隻活殼.合理的解釋是這些麟毛鳳爪早已進了大收藏家的櫃子,再不然就是牠的棲息地可能是一般潛客無法到達之處.不管如何,可幸的是這個種類確實還是存在的,只是靜靜地躲在未知的深海裡延續牠的傳說.
PS.(1).Dr. Paul Callomon是Academy of Natural Sciences的Collection Manager. Philadelphia Shell Club每年10月初會在這個博物館舉辦貝殼展.這是美國東北角唯一一個大型的shell show(也是東岸最北的一個),其他的大多是在佛羅里達舉辦. (2).真的Conus kawamura活殼應該是要比另一個亞種lemuriensis更稀有更貴才對.
Edited by strombus on 26-October-2008 at 3:37am
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