118 BULLETIN OF THE 



Chondropoma watlingense n. sp. 



Figure 6. 



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

 normal rounded Avhorls; covered with close, even, elevated lirae separated by 

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

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

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

 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. diani. 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. dentalum 

 of Florida and Cuba. 



Helicina Rawsoni Pfeiffee. 



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

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



Truncatella subcylindrica Gkay. 



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

 of the Greater Antilles. 



Truncatella pulchella Pieiffer. 



Specimens of this species occurred abundantly among the Fish Commission 

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



Truncatella bilabiata Pfeifi-er. 

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



Truncatella caribseensis Soweuby. 



Common, widely distributed in the West Indies, Florida and Mexico. 

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

 those with the periphery smooth. 



