Hi, James!

Identification of Plesiotrochus can be challenging at times.  Another species close to some of those illustrated in the link you sent is Plesiotrochus acutangulus (Yokoyama, 1924).  Hardy, in his website, http://www.gastropods.com/9/Shell_16599.shtml, lists it as a synonym of P. souverbianus, but other authors regard it as a valid species.

If anyone knows of any literature references for Plesiotrochus, I would appreciate your help.

Best regards,
Ron Noseworthy


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On Sat, 2/15/14, James Cheshire <[log in to unmask]> wrote:

 Subject: [CONCH-L] What's up with Plesiotrochus?
 To: [log in to unmask]
 Received: Saturday, February 15, 2014, 6:37 PM

 I have two
 small lots of Plesiotrochus sp. from the Philippines. They
 are the same as seen here:

 http://www.conchology.be/?t=27&family=PLESIOTROCHIDAE&species=Plesiotrochus%20unicinctus



 A web search turns up this shell under these names:

 Plesiotrochus luteus (Gould, 1861)
 Plesiotrochus souverbianus Fischer, 1878
 Plesiotrochus unicinctus (A. Adams, 1853)

 None of these authors figured their shells. What is
 the correct name for this taxon?


 James

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