176 AMERICAN JOURNAIj 



animal of Pompholyx^ published in the Proc. Cal, Acad., 1866. 

 He there asserted that it possessed two pairs of eyes, founded 

 upon drawings and descriptions furnished to him by Mr. W. M. 

 Gabb. There are no tentacular eyes, however, but the tenta- 

 cular nerve is marked by a central line of pigment cells, which, 

 in some specimens, is crowded near the tips, forming black spots, 

 which were mistaken by Mr. Gabb for eyes. The soft parts of 

 Pompholyx, together with the dentition, are fully described in this 

 paper, as well as the soft parts of other genera of LimnajidfB. 



The author follows Binney in including '■^ Strehelia Berendtii" 

 {Physclla) in the Limnseidre, although it is undoubtedly a land 

 shell, as the description and figure will satisfy any one who will 

 study them. Very likely the name " Physella " has suggested 

 placing this species among the fluviatiles. 



Carinifex Tryoni, Meek, is made a new subgenus — Vorticifex. 

 It is a fossil from the Nevada tertiary. Physa costata, New- 

 comb, is made the type of a new subgenus — Costatella. " Shell 

 rounded, with transverse undulations or cost^.'' 



Paludina or Physa sealaris, Jay, is referred, very correctly 

 we think, to the subgenus Ameria, Adams. 



Annals of the Lyceum of Natural History. New Voi-k. IX. No. 9. 

 March, 1870. 



JVotes on the Liuf/ual Dentition of Mollusca. By W. G. 

 Binney and Thomas Bland. 



The species figured and remarked upon are Succinea Nuttal- 

 Uana, BulimnJus pcdlidior, Helix tnmida, Zonites lamgata, 

 VeronieeUa Floridana, Limax flrivus, Mdampus hidentatus, 

 Helicina occulta. Pomphlyx effusa, Planorhis trivolvis, Tulotoma 

 magnifica. 



To this paper is added an important note by Mr. W. G. Bin- 

 ney on Vivipara lineata, Val. The author confirms the sus- 

 picions of conchologists regarding the locality of this species. 

 When in Paris, in 1867, he examined the original specimen, and 

 found it labelled "Lake Erie," and then in Valenciennes' hand-writ- 

 ing was added, " this is a mistake, the shell comes from India." 

 Thus the question of locality is settled, and the specimen is the 

 well known Paludina Bengalensis. A'^alenciennes' name becomes 

 a synonym, as Bengalensin has priority, but Mr. Binney seems 

 still to overlook the fact that the description and figure of Klister 

 apply unmistakably to our Anterican species, and he was not 

 justified in giving a name [V. conteetoides) to it, as V. lineata, 

 Kiister, not (Valenciennes) must stand. Mr. Binney very justly 

 condemns American writers for their carelessness, and distinctly 



