OF CONCHOLOGY. M 



ffahitat. — New Grenada, (Wm. G. Binney.) 



My Cabinet. Cabinet of the Academy of Natural Sciences, 

 Philadelphia. 



Observations. — This species is nearly related in form and 

 coloring to H. aspersns, Eeeve, from Brazil {=oscuIaii, Villa), 

 but the latter is spirally grooved, and is a more solid, ventri- 

 cose shell. 



3. Physa (Isidora) Hainesii, Tryon. — t. 2, f. 9. 



Description. — Shell ovate, ventricose, moderately thick (for 

 the genus); spire short, acute, suture very deeply impressed; 

 whorls 3 to 4, very rapidly enlarging, extremely convex, the 

 last bulbous, with very fine epidermal revolving lines; aper- 

 ture broadly oval, well rounded above and below, columella 

 lip almost equally curved with the outer one; a heavy callous 

 deposit on the columella causes a continuous peritreme. Lighl 

 horn-color. 



Dimensions. — -Length 9*5 mill., diam. 7 mill. 



^«&/^a^.— Australia, (W. Newcomb, M. D.) India ? ( W. A. 

 Haines.) 



My Cabinet. Cabinet of W. A. Haines, New York. Cabi- 

 net of Wesley Newcomb, M. D., Oakland, Cal. 



Observations. — I cannot identify this species among those 

 recently described from Australia, and its characters are so 

 distinct that it cannot easily be confounded with any other. I 

 am inclined to believe the locality India an error, because 

 among the shells submitted to me by Mr. Haines, were a num- 

 ber of Australian, as well as Indian species. 



4. Physa (Bulinus) acutispira, Tryon. — t. 2, f. 10. 



Description. — Shell cylindrically-ovate, elongated, very thin, 

 transparent, highly polished; spire elevated, very acute, suture 

 slightly impressed; whorls 5, oblique, slightly convex; aper- 

 ture narrow-ovate, two-thirds the total length, columella a little 

 folded, and s#mewhat turned back at the base. Very light 

 horn-color. 



Dimensions. — Length 12 mill., diam. 6 mill. 



Habitat. — Australia, (W. A: Haines.) 



My Cabinet. Cabinet of W. A. Haines, New York. 



Observations.— M.Q.y be compared to Bulinus hypnorum, Linn., 

 of Europe, or Ph. virginea, Gould, of Oregon. 



Among the species recently described in the "Zool. Proc. 

 of London," I find none with which this can be identified. 



