29 



PHYSA OSCULANS, Hald. 



Plate 2.— Figs. 11—13. 



P. testa ovata vel subglobosa, griseo-fusca, tenui; anfrac- 

 tibus 5, sutura impressa: apertura lata. 



SYNONYMS AND REFERENCES. 



Bulla fontinalisI Indise occidentalis, Chemnitz, vol. 



ix. pi. 103, figs. 879, 880. 

 Physa OSCULANS. This work, anno 1841. 



DESCRIPTION. 



Shell allied to P. heterostropha, and pre- 

 senting nearly the same varieties: translucent; 

 texture very thin: lines of accretion fine: aper- 

 ture wide, columella thick, with the fold obso- 

 lete, or but slightly impressed. 



Geographical Distribution. Mexico? India? 



OBSERVATIONS. 



Specimens of this shell were presented to the 

 Academy of Natural Sciences by Dr. M. Bur- 

 rough; and Mexico is given as the native coun- 

 try; but as this enterprising traveller also made 

 collections in India, it is not impossible that 



