CUBAN SUBFAMILY CHONDROPOMINAE TORRE AND BARTSCH 295 



KEY TO THE SUBSPECIES OF CHONDROTHYRETES DJCRASSATA 



Orange blotch behind peristome present. 



Length of shell more than 25 mm aurantiaca 



Length of shell less than 22 mm fumata 



Orange blotch behind peristome absent. 



Sculpture feeble incrassata 



Sculpture not feeble subincrassata 



CHONDROTHYRETES INCRASSATA AURANTIACA, new subspecies 



Plate 22, Figure 5 



The mogotes between Cabezas and Isabel Maria and the Sierra 

 Quemada harbor a race that about equals C . incrassata incrassata in 

 size and sculpture. The shells, however, are marked with a con- 

 spicuous orange blotch behind the peristome. To this race we have 

 given the above name. 



The type, U.S.N.M. no. 367872, which comes from Mogote Isabel 

 Maria, is an almost perfect specimen. It has 6.0 whorls and meas- 

 ures : Length, 27.2 mm ; greater diameter, 17.8 mm ; lesser diameter, 

 13.8 mm. 



CHONDROTHYRETES INCRASSATA FUMATA. new subspecies 



Plate 22, Figuke 8 



This diminutive race resembles C. incrassata aurantiaca^ from 

 which its small size at once distinguishes it. It comes from Lagunil- 

 las, which lies halfway between the range C. incrassata aurantiaca 

 and the south coast. 



The type, U.S.N.M. no. 468800, has 5.4 whorls remaining and meas- 

 ures: Length, 21.3 mm; greater diameter, 12.7 mm; lesser diameter, 

 9.4 mm. 



CHONDROTHYRETES INCRASSATA INCRASSATA (Wright) Pfeiffer 



Plate 22, Figure 7 



1862. Clwndropoma incraasatum (Weight) Pfeiffeb, Malakozool. Blatter, voL 

 10, pp. 182-183. 



This subspecies occupies the Sierra Vinales and part of the Sierra 

 Penitencia and is distinguished from C. incrassata subincrassata^ iho, 

 race south of it, by having a little heavier shell, paler coloration, and 

 feebler sculpture, and by being less frequently marked by spiral cc-lor 

 lines. 



The specimen figured, one of a series of topotypes, U.S.N.M. 

 no. 468944, was collected by Wright at Vinales. It is a perfect speci- 

 men having 6.8 whorls and measuring: Length, 29.3 mm; greater 

 diameter, 19.5 mm ; lesser diameter, 14.6 mm. 



