CUBAN SUBFAMILY CHONDROPOMINAE TORRE AND BARTSCH 401 



CHONDROTHYRIUM VIOLACEUM MANATIENSE, new subspecies 



Plate 28, Figure 12 



This race comes from Loma del Marin, Rio Manati, Trinidad. It 

 is a small race with the whorls decidedly inflated, of buff color, witli 

 the interrupted spiral bands of brown weakly developed but having 

 their elements also in axial series. It resembles most closely G. 

 violaceu7)% sopimpense^ from which it can be distinguished by its 

 more inflated whorls and more regularly distributed axial ribs. 



The type, U.S.N.M. no. 367821, has 4 whorls remaining and meas- 

 ures: Length, 14.6 mm; greater diameter, 9.5 mm; lesser diameter, 

 6.9 mm. 



CHONDROTHYRIUM VIOLACEUM SOPIMPENSE, new subspecies 

 Plate 28, Figire 11 



This race comes from Sopimpa, which is on the railway between 

 Fomento and Trinidad. Here the shell is also buff color, with a 

 purplish flush. The interrupted spiral bands are moderately strong, 

 the whorls are inflated, and the axial ribs are rather irregular in distri- 

 bution, as well as in strength, a character that will readily distinguish 

 it from C. violaceum manatiense. 



The type, U.S.N.M. no. 355046, has 4.2 whorls remaining and meas- 

 ures: Length, 13.7 mm; greater diameter, 9.3 mm; lesser diameter, 

 7.0 mm. 



CHONDROTHYRIUM VIOLACEUM FOMENTENSE, new subspecies 



Plate 28, Figuee 8 



This small race comes from Fomento, northeast of Trinidad. Here 

 the early whorls are decidedly darker than the last. The sculpture 

 on the penultimate whorl is very heavy, in which respect it resembles 

 C. violaceum leteranense^ from which, however, it can readily be dis- 

 tinguished by its small size. 



The type, U.S.N.M. no. 367822, has 4 whorls remaining and meas- 

 ures: Length, 13.5 mm; greater diameter, 8.8 mm; lesser diameter, 

 6.8 mm. 



CHONDROTHYRIUM VIOLACEUM CLERCHI, new subspecies 



Plate 28, Figuee 13 



This subspecies was collected by Clerch at Quemado Feo. It is a 

 small ovate race of flesh-colored ground color, with the interrupted 

 spiral bands of brown only of medium strength. The axial riblets 



66879—38 U 



