176 AMERICAN JOURNAL 



animal of PomphoJyx, 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 

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

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



The author follows Binney in including '-'- Strebelia BerendtW 

 {PJiysella) in the Limnseidse, 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. 



Qarinifex Tryoyii, Meek, is made a new subgenus — Vorticifex. 

 Pt is a fossil from the Nevada tertiary. Phym eostata, New- 

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

 rounded, with transverse undulations or costse.'' 



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

 "we think, to the subgenus Ameria, Adams. 



Annals of the Lyceum of Natural History. New York. IX. No. 9. 

 March, 1870. 



Notes on the Lingual Dentition of 3Iollusca. By W. G. 

 Binney and Tpiomas Bland. 



The species figured and remarked upon are Succinea Nuttal- 

 liana, Bulimulus pallidior, Helix tumida, Zonites laevigata, 

 Veroyiicella Floridana, Limax Jiavus, 3Ielampus bidetitatus, 

 Helicina occulta. PompJdyx effusa, Planorhis trivolvis, Tulotoma 

 magnifica. 



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

 ney on Vivipara litieata, 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 "LakeErie," 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. Valenciennes' name becomes 

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

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

 apply unmistakably to our Ai-ierican species, and he was not 

 justified in giving a name ( V. contectoides) to it, as V. lineata, 

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

 condemns American writers for their carelessness, and distinctly 



