CUBAN SUBFAMILY CHONDROPOMINAE TORRE AND BARTSCH 229 



The type. U.S.N.M. no. 36TT39, was collected by Arango at Los 

 Lagunitas. It has 3.8 whorls remaining and measures: Length, 19.7 

 mm; greater diameter. 19.7 mm; lesser diameter, 13.7 mm, 



CHONDROPOMETES (CHONDROTHYROMA) SEGREGATUM ARANGOI, new subspecies 



Plate 12, Figure 9 



Shell pale buff, the early turns with a reddish tinge, marked with 

 inconspicuous, rather narrow, interrupted spiral bands of brown. 

 These spiral markings are also arranged in axial series. Peristome 

 white. 



The type, U.S.N.M. no. 367716, a complete specimen, was collected 

 by Arango at Hoyo Guama. It has 6.4 whorls and measures : Length, 

 20.3 mm; greater diameter, 16.2 mm; lesser diameter, 10.7 mm. 



The more conic outline and pale color distinguish this readily from 

 the others of the larger races. 



CHONDROPOMETES (CHONDROTHYROMA) SEGREGATUM VALLEI, new subspecies 



Pl^te 12, FiGirRE 1 



Shell white, unicolor, with the peristome white, L'mbilicus with 

 conspicuous spiral threads. 



The type, U.S.N.M. no. 428800, was collected by Bartsch and 

 Valle in 1928 on the tall mogote about one and one-half miles south- 

 west of Kilometer 14 between Pinar del Rio and Vinales. It has 4.1 

 whorls remaining and measures : Length, 19.8 ; greater diameter, 19.0 

 mm ; lesser diameter, 13.4 mm. 



CHONDROPOMETES (CHONDROTHYROMA) SEGREGATUM LAUREANI, new subspecies 



Plate 12, FiofRE 6 



Shell small, buff, with white peristome. The conspicuous inter- 

 rupted brown bands have the elements composing them also ar- 

 ranged in axial series. These are so broad that their arrangement 

 almost produces axial bands : in fact they appear more as axial bands 

 than spiral ones. 



This race comes from ]Mogote de la Caja west of Pinar del Rio, 



The type, U.S.N.M. no. 468726, has 3.5 whorls remaining and 

 measures: Length, 14.9 mm; greater diameter, 12.7 mm; lesser 

 diameter, 9.0 mm. 



The strong spiral and axial arrangements of the color bands readi- 

 ly distinguish this from the other small races of C. (C.) segregatum. 



