CUBAN SUBFAMILY CHONDROPOMINAE TORRE AND BARTSCH 331 



We are recognizing three subspecies, which the following key will 

 help to differentiate: 



KEY TO THE SUBSPECIES OF CHONDROPOMA (CHONDROPOMA) PFEIFFERIANUM 



Decollated shell more than 14 nun long. 



Shell brown camoense 



Shell not brown pfeifferianum 



Decollated shell less than 12 mm long , g'anuzaense 



CHONDROPOMA (CHONDROPOMA) PFEIFFERIANUM CAMOENSE, new subspecies 



Plate 30, Figure 1 



This subspecies comes from Camoa, Habana Province. It is the 

 largest race and almost always has a chestnut-brown color, only occa- 

 sionally are brownish horn-color individuals found. 



The type, U.S.N.M. no. 493066, has 4.5 whorls remaining and 

 measures: Length, 21.5 mm; greater diameter, 11.1 mm; lesser diam- 

 eter, 9.8 mm. 



chondropoma (chondropoma) pfeifferianum pfeifferianum poey 



Plate 30, Figuhb 2 



1851. Cyclostonia pfeifferianum Poey, Memorias sobre historia natural de la Isla 

 de Cuba, vol. 1, p. 419. 



1853. Chondropoma pfeifferianum Pfeiffer, Martmi-Chemnitz Conchylien Cabi- 

 net, vol. 1, sect. 19, p. 374, pi. 48, figs. 38^0. 



This, the typical race, we have seen from Chorrera, Managua, La 

 Alianza, Tapaste, Loma de Candella, and Loma de Coca in Habana 

 Province. Here tlie shell is usually fiesh-color, though sometimes 

 pale brown. It is interruptedly spirally banded on spire and base 

 with occasionally a continuous peripheral and subperipheral band of 

 brown. It is easily differentiated from C. {C.) pfeiferi-anum ca/no- 

 cnse, which is larger and almost always brown. C. (C.) pfeiffer- 

 ianum ganuzaense is easily distinguished by its smaller size. 



The specimen figured, U.S.N.M. no. 493053, is one received from 

 Poey. It quite closely resembles Pfeiffer's figure. It has 3.6 whorls 

 and measures: Length, 14.5 mm; greater diameter, 8.5 mm; lesser 

 diameter, 7.0 mm. 



CHONDROPOMA (CHONDROPOMA) PFEIFFERIANUM GANUZAENSE, new subspecies 



Plate 30, Figueb 3 



This subspecies comes from Ganuza, Habana Province. It is a 

 diminutive race, having all the attributes of C. (C.) pfeifferianum 

 pfeifferi^inum except size. 



