tag:blogger.com,1999:blog-1925453458905823877.post1369633693210744556..comments2024-01-09T19:56:03.647-05:00Comments on Freshwater Gastropods of North America: Pleurocera acuta is Pleurocera canaliculataRob Dillonhttp://www.blogger.com/profile/09916618545870123585noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1925453458905823877.post-71977410730563282122013-06-03T16:04:09.355-04:002013-06-03T16:04:09.355-04:00Kevin - I'm not sure I understand it either! ...Kevin - I'm not sure I understand it either! Rafinesque's formal description of P. acuta wasn't actually published until 1831. Here I'm just parroting "Part 1" of ICZN Opinion #1195, which states "the author of Pleurocerus acutus is Rafinesque in Blainville 1824." I think the commissioners HAD to give Rafinesque the 1824 description, or otherwise the name "acuta" would have been preoccupied in 1831. And hence unavailable to serve as the type of the genus. Rob Dillonhttps://www.blogger.com/profile/09916618545870123585noreply@blogger.comtag:blogger.com,1999:blog-1925453458905823877.post-29699653325014142862013-06-03T14:28:06.686-04:002013-06-03T14:28:06.686-04:00I puzzeled by your statement that "Pleurocera...I puzzeled by your statement that "Pleurocera acuta is among the best known of the North American freshwater gastropods, first described from Lake Erie by Rafinesque (in Blainville, 1824)." I looked at Blainville 1824 and see nothing with respect to a description. I would think P. acutus in Blainville is a nomen nudem.Kevin Cummingshttps://www.blogger.com/profile/00134772542080465882noreply@blogger.com