1901.] NATURAL SCIENCES OF PHILADELPHIA. 183 



Locality. St. Martin and St. Bartholomew, West Indies, and 

 Progreso, Yucatan. 



The type is in the collection of the Academy of Natural Sci- 

 ences of Philadelphia, No. 57,900, collected by Dr. B. Sharp at 

 St. Martin. 



Atys sharp! n. sp. PI. V, fig. 9. 



Shell small, subcylindrical, solid, porcellanous, glossy, translu- 

 cent bluish white, very finely spirally striate, striae strongest above 

 and below. Apex with an extremely small perforation. Base 

 umbilicate. Aperture narrow above, broader below. The lip rises 

 from the right, side of the apical perforation and describes a more 

 or less even arc above without the twist so common in this genus; 

 the outer lip descends in a gentle curve and the basal lip is arcu- 

 ate. The columella is concave with a slight twist. 



Alt. 7.84, diam. 3.8 mm. 



Locality. St. Martin, West Indies. 



Types in the collection of the Academy of Natural Sciences 

 of Philadelphia, No. 60,735, collected by JDr. B. Sharp. 



This species is easily recognized by the lack of a twist on the 

 evenly curved upper part of the lip. 



Tornatina bermudensis n. sp. PI. V, figs. 6, 7. 



Shell small, cylindrical, porcellanous, shining bluish white, 

 smooth. The spire is composed of about three whorls, the first 

 being turned up forms a large tubercle, the other two are round- 

 shouldered. The suture is a very slightly impressed canal, body 

 whorl descending in front. The aperture is nearly four-fifths the 

 entire length of the shell, narrow above and broader below, upper 

 part of aperture with a deep wide sutural notch, parietal wall 

 and columella covered by a very heavy callus, no columellar fold. 

 The base is squarely truncate and receding. 



Alt. 2.87, diam. 1.41 mm. 



Locality. Bermuda. 



Type in the collection of the Academy of Natural Sciences of 

 Philadelphia, No. 70,160, collected by Prof. Angelo Heilprin. 



This species may be distinguished from T. canalieulata and T. 

 decurrens V. and B. by its heavy parietal callus and the lack of 

 a columellar fold. 



