MUSEUM OF COMPARATIVE ZOOLOGY. 45 



Genus TORNATINA A. Adams. 

 Spire elevated. Columella uniplicate. 

 T. bullata Kiener (= canaliculata Orb. non Say). 

 T. recta Orb. (+ T. coix-lacryma Guppy, Geol. Mag. 1867, p. 500). 

 T. canaliculata Say (non Orbigny). 

 T. Candei Orb. (? = canaliculata Say, var.). 

 T. spatha Watson. 



Subgenus COLEOPHYSIS Fischer. 

 Spire depressed. Columella uniplicate. 

 C. perplicatus Pall. 



Subgenus CYLICHNELLA Gabb. 

 Spire depressed. Columella biplicate. 

 C. bidentata Orb. (+ biplicata Lea). 

 G. oryza Totten. 

 C. ovum-lacerti Guppy (Trinidad Eocene). 



Genus UTRICULUS. 



Spire elevated or involute ; shell subcylindrical ; columella simple, uni- 

 plicate. 



U. Gouldii Couthouy. 



U. pertenuis Migbels. 



U. Mayoi Bull. 



U. Frielei DalL 



U. vortex Dall. 



U. (vortex var. ?) domitus Dall. 



U. pervius Dall. 



Subgenus KETUSA (Brown) Morch. 

 Shell pyriform, transversely sulcate, spire depressed, concave. 

 B. sulcata Orbigny. 

 R. cmlata Bush. 

 i2. omphalis Morch. 

 B. t ovata Jeffreys. 



Subgenus COLEOPHYSIS Fischer. 



Coleophysis perplicatus Dall. 



Shell ivory white with a very thin translucent epidermis, marked only with 

 delicate lines of growth and a few faint incised spirals near the columella ; 

 anterior half of the shell wide and rounded, posterior half narrowing toward 

 the apex with the sides somewhat compressed or flattened ; outer lip thin, 

 straight except in front where it expands a little before rounding to the rather 

 thick twisted pillar; behind deeply notched and behind the notch arching 



