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Post by Melanie on May 29, 2005 22:20:59 GMT
Alabama, USA
last recorded 1924
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Post by Melanie on May 29, 2005 22:22:21 GMT
All species in this genus, which is endemic to the Coosa River, are extinct. Impoundment of the river eliminated the shoals they inhabited (Bogan and Pierson, 1993).
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Post by another specialist on Jun 21, 2005 6:08:35 GMT
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Post by another specialist on Nov 9, 2005 17:15:43 GMT
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Post by Deleted on Nov 9, 2005 17:21:08 GMT
... really wonderfull ... I can open the pdf. file but cannot see the pics.  |
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Post by Deleted on Nov 9, 2005 17:35:36 GMT
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Post by another specialist on Nov 9, 2005 17:43:18 GMT
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Post by Melanie on Nov 9, 2005 18:09:52 GMT
Type gyrotoma into the search field of your Adobe Acrobat Reader and you will find that the pic. from above source www.unc.edu/~keperez/FMCSGastropodID.pdf Gyrotoma excisum (Synonym) Shell cylindrical or globosely conic, with a slit along the posterior sutural margin of the last whorl, aperture ovate, 15-25 mm in height. Whorls may be smooth, carinate, or lirate. Sutures are deeply indented. The genus is only known from the Coosa River, Alabama. It contains six species which are all believed to be extinct. ... really wonderfull ... I can open the pdf. file but cannot see the pics. |
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Post by Melanie on Nov 9, 2005 18:12:22 GMT
Well i am pretty sure that it is this species. It looks similar to the B/W sketch in the pdf-file. |
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Post by Deleted on Nov 9, 2005 18:15:04 GMT
Thank You Melanie !  ... are all those pictures black and white ? I do only need coloured pictures. |
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Post by Melanie on Nov 9, 2005 19:00:10 GMT
Yes, all the pictures are black and white. Thank You Melanie ! ... are all those pictures black and white ? I do only need coloured pictures. |
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Post by another specialist on Nov 13, 2005 20:55:13 GMT
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Post by another specialist on May 6, 2006 21:02:20 GMT
Hi ! family: Pleuroceridae Gyrotoma excisa, an endemic freshwater snail of the Coosa River / Alabama / USA.  Gyrotoma was an endemic genus for the Coosa River. The genus contained six species which all are extinct now. |
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Post by Deleted on May 7, 2006 14:24:23 GMT
Thank You ! But I did use the search ! And I did not found that thread.  |
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Post by another specialist on May 7, 2006 21:11:03 GMT
no problem mate
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Post by another specialist on May 7, 2006 21:48:21 GMT
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Post by another specialist on Mar 22, 2008 9:02:31 GMT
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Post by surroundx on Jun 22, 2021 10:51:05 GMT
Minton, Russell L. (2021). Morphometrics Suggest Reduced Diversity in the Freshwater Snail Genus Gyrotoma Shuttleworth, 1845 (Gastropoda: Pleuroceridae). Annals of Carnegie Museum 87(1): 79-88. doi.org/10.2992/007.087.0103 [ Abstract] |
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Post by koeiyabe on Aug 22, 2021 2:11:00 GMT
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