發表於: 25-October-2008 at 4:26pm | IP Logged
|
|
|
wmy1048兄的的貝殼確實是活殼沒錯,但應該不是河村印度洋榮光芋螺(Conus milneedwardsi kawamura/Conus aratispirata????) .
可能太久沒有瘋貝殼了,所以有些訊息不是那麼跟得上時代.由於至少看過40枚以上的這樣的殼,包含您這裡所貼的這隻(44.5mm from C&S, right?),從未看過dealer敢自稱"live taken",頂多描述是"多年前奄美大島抽砂所挖到,以後不可能再有........",加上很久以前似乎有讀過類似的文章,所以才會有上文的狐疑.以下節錄自 Paul Callomon 在CONCH-L的文章,如對此一物種有興趣者不妨參考看看.
------------------------------------------------------------------
Date: Fri, 12 Mar 1999 13:56:08 +0900 Reply-To: Conchologists of America List <CONCH-L@UGA.CC.UGA.EDU> Sender: Conchologists of America List <CONCH-L@UGA.CC.UGA.EDU> From: Paul Callomon <paulc@GOL.COM> Subject: Re: C. milneedwardsi In-Reply-To: <005101be6c17$d73b7c00$2194e3c7@gate.gate.net> Content-Type: text/plain; charset="us-ascii"
> Conus kawamurai, incidentally, is actually a separate species (they do not > intergrade), known live from only one location and so far from a single > specimen. > > Does a single Freak specimen constitute a "new species" ????
No.... I said 'known LIVE from a single specimen'. C. kawamurai is known from thousands of dead examples (I have about 60, and most Japanese collectors have several). It was thought extinct until a single live-taken specimen was reported by Dr Yoshiba (Yoshiba and Nobuhara (1997) : 'Flourish and decline of populations of Leptoconus kawamurai Habe (Gastropoda : Conidae)'. Chiribotan, vol. 28 (1) : 1-7, 7 figs.) I wrote about this species in La Conchiglia some years ago, at which time there were no known live-taken specimens. Conus aratispirata Pilsbry is probably the same thing; the type is a fossil from Kikai island near Amami Oshima. I cannot tell them apart, so a revision may be necessary
------------------------------------------------------------------
http://listserv.uga.edu/cgi-bin/wa?A2=ind9903B&L=conch-l&P=R4197&D=0
http://www.listserv.uga.edu/cgi-bin/wa?A2=ind0506a&L=conch-l&P=2696
http://listserv.uga.edu/cgi-bin/wa?A2=ind0506a&L=conch-l&P=2255
Edited by strombus on 26-October-2008 at 3:36am
__________________ Rookie sheller
|