XXI. — On the Lingual Dentition of Gceotis, 

 By thos. bland and w. g. binney. 



Read January 6, 1873. 

 [Reprinted from the Annals of the Lyceum of Natural History, N. Y., Vol. x, Oct., 1872.] 



The genus Gceotis was described by Shuttle worth,* founded 

 on a curious mollusk from Porto Eico. The lingual denti- 

 tion was said to be nearly the same as in Vitrina and Zonites, 

 the teeth arranged in oblique rows, centrals obtusely tri- 



*" Lamina lingualis fere ut in Vitrina et Zonites constituta videtur, papillae nempe 

 numerosae in seriebus utrinque obliquis ordinatae sunt: papilla centrali obtuse trl 

 dentata; mediis vix a centrali diversis; lateralibus autem subulato-productis, arcuatis 

 basi? bifurcatis. An maxilla adsit haeret." " E formatione linguae animal videtur 

 sine dubio carnivorum." Shuttleworth, Bern Mit. 1854, p. 34. 

 (252) . 



