234 AMERICAN JOURNAL 



I agree with Dr. Carpenter that they should be classed with 

 Columhellince, but not with Anachis, A. Ad., which appears to 

 be a conglomerate genus. C. miser, Pacifica, etc., are not very 

 closely related to the strongly-ribbed Panamic forms, nor to the 

 small iridescent species of Polynesia. I would therefore pro- 

 pose that the latter should be separated under the name of 

 Seminella. 



I take this opportunity to correct an error in " Report on 

 Mollusca of the West Coast of America," 1863, by Dr. Car- 

 penter. He remarks that Phasianella rubra, Pse. MSS., p. 

 568, belongs to Alcj/na, A. Ad. Aleyna rubra, Pse., is so 

 described in Proc. Zool. Society, London, I860., I have received 

 from Dr. Carpenter a worn specimen from the washings of 

 shells collected by the Am. Ex. Ex. at our islands, labelled 

 Phasiatiella. It is the Collonia variabilis, Pse., Proc. Zool. Soc, 

 London, 1860 — the ummbilical fissure worn off. The generic 

 characters of 0. variabilis, Pse., are precisely the same as those 

 of Turbo phasianellus, C. B. Ad., which Dr. C. has classed with 

 Collonia. ( Vide Carpenter's Review of C. B. Ad. Cat., etc.) 



