118 BULLETIN OF THE 



Chondropoma watlingense u. sp. 



Figure 6. 



Shells very small for the genus, decollated, with four or four and a half 

 normal rounded whorls; covered with close, even, elevated lirse separated by 

 slightly wider interspaces and gathered at the suture so as to crown the whorl 

 with small somewhat irregular denticulations ; under these lirte on the base of 

 the whorl are three or four small revolving elevated ridges ; in some of tlie 

 larger specimens these ridges exist on the periphery and even on the posterior 

 slope of the last whorl and a half, faintly undulating the lira) ; color yellowish 

 white, with reddish brown spiral bands, which cover the peripheral part of the 

 whorl, or may be represented by revolving bands of dots, or even wholly 

 absent ; base rounded, minutely perforate ; aperture obliquely oval ; the re- 

 flected peristome is continuous, flattish, concentrically deeply grooved or 

 striated, and auriculated slightly at the anterior and posterior angles. Oper- 

 culum not obtained. Lon. of shell, 7-8; of aperture, 2-3 ; max. diam. behind 

 the aperture, 2.5-3.5 mm. 



This little species, collected by the U. S. Fish Commission, cannot be iden- 

 tified with any other hitherto recorded from the region. It is neat in color- 

 ation, and unusually small in size, somewhat recalling, in miniature, C, dentatum 

 of Florida' and Cuba. 



Helicina Rawsoni Pfeiffer. 



A number of rather worn specimens, collected by the Fish Commission, seem 

 referable to this species, which was originally described from Inagua. 



Truncatella subcylindrica Gray. 



Numerous in the Fish Commission material. Found in Florida and most 

 of the Greater Antilles. 



Truncatella pulchella Pfeiffer. 



Specimens of this species occurred abundantly among the Fish Commission 

 shells. It is found in Florida, in Cuba, and in Jamaica. 



Truncatella bilabiata Pfeiffer. 

 Common. Also reported from the coast of Florida and Mexico. 



Truncatella caribaeensis Sowerby. 



Common, widtdy distriljuted in the West Indies, Florida and Mexico. 

 Specimens with the ribs continuous over the whorl seem less common than 

 those witli the peri])liery smooth. 



