208 PROCEEDINGS OF THE NATIONAL MUSEUM vor.. 85 



pying this end of this limestone block should be considered the type 

 locality of the typical race. 



The shells of this race resemble closely G. {C.) vignalense dappi in 

 delicacy and color, but they are much smaller. 



The specimen figured, U.S.X.M. no. 4G8GT9, comes from the south- 

 eastern end of the Sierra Chorrera. It is a complete individual, hav- 

 ing 5.8 whorls and measuring: Length, 18.2 mm; greater diameter, 

 17.8 mm; lesser diameter, 12.5 mm. 



CHONDROPOMETES (CHONDROPOMETES) VIGNALENSE VENERABILE, new subspecies 



Plate 8, Figure 11 



This was collected in the Hoyo de los Santos of El Queque. It is of 

 ground-glass white color, with a straw-colored axial bund a little be- 

 hind the peristome. 



The type, U.S.N.M. no. 428788, has 3.3 whorls remaining and meas- 

 ures: Length, 21.2 mm; greater diameter, 22.5 mm; lesser diameter, 

 15.6 mm. 



CHONDROPOMETES (CHONDROPOMETES) VIGNALENSE PUERTECITENSE, new 



subspecies 



Plate 7, Figltie 9 



Shell very similar to C. (O.) vignalense vignalense but pale yellow. 

 This subspecies comes from Mogote Puertecitas off the southeast end of 

 the Chorrera. 



The type, U.S.N.M. no. 468680, is a complete specimen having 5.5 

 whorls and measures: Length, 17.7 mm; greater diameter, 17.2 mm; 

 lesser diameter, 12.7 mm. 



CHONDROPOMETES (CHONDROPOMETES) VIGNALENSE AZUCARELLUM, new 



subspecies 



Pl.\te 7, Figure 6 



Shell small, pale yellow, resembling C. (0.) vignalethse piierteci- 

 tense in size and coloration but having the axial riblets much more 

 numerous and much more closely spaced. 



The type, U.S.N.M. no. 429046, was collected by G. Homer on 

 Mogote Pan de Azucar. It has 2.5 whorls remaining and measures: 

 Length, 16.6 mm; greater diameter, 18.5 mm; lesser diameter, 13.0 

 mm. 



CHONDROPOMETES (CHONDROPOMETES) VIGNALENSE FOGONENSE. new subspecies 



Plate 8, Figure 4 



This subspecies comes from Fogon de los Negros in the north- 

 eastern part of de la Chorrera. It is a small race resembling C. {C.) 



