CUBAN SUBFAMILY CHONDROPOMINAE — TORRE AND BARTSCH 291 



other races and a white Ime at the summit is indicated. The sum- 

 mit of the whorls is not strongly denticulated. The front and 

 back of the expanded peristome are not rayed. 



The type, U.S.N.M. no. 492877, comes from the western end of 

 Pan de Azucar. It is a complete specimen having 6.8 whorls and 

 measuring: Length, 27.8 mm; greater diameter, 16.7 mm; lesser di- 

 ameter, 12.7 mm. 



CHONDROTHYRETES RETICULATA SACCHARINELLA, new subspecies 



PtATE 21, Figure 1 



This subspecies comes from Mogote Pan de Azucar, that conspicu- 

 ous block of limestone lying a couple of miles north of the Sierra 

 de Chichones. This is a diminutive race, very similar to G. reticu- 

 lata versicolor^ which has the peristome both on the front and back 

 conspicuously rayed. It also has a denticulated white line at the 

 summit. 



The type, U.S.N.M. no. 492884, has 4.8 whorls remaining and 

 measures: Length, 21.0 mm; greater diameter, 13.8 mm; lesser di- 

 ameter, 10.7 mm. 



CHONDROTHYRETES RETICULATA RETICULELLA, new subspecies 



Plate 20, Figure 7 



This diminutive race is confined to a small mogote on Martinez's 

 place at Banos San Vicente, which stands at some distance from the 

 main range. It is a very dark chestnut-brown race, with a conspic- 

 uous denticulated zone of white at the summit. The peristome and 

 parietal callus are also white without rays. 



The type, U.S.N.M. no. 474197, is a complete specimen having 

 6.3 whorls and measuring: Length, 18.0 mm; greater diameter, 11.6 

 mm ; lesser diameter, 8.6 mm. 



Very dark forms of G. reticulata petricolella resemble this in 

 coloration, but they are a little more finely sculptured and never 

 so dark. 



CHONDROTHYRETES RETICULATA PELLUCIDA, new subspecies 



Plate 20, Figxtre 6 



This small race was taken on the second mogote on the right side 

 of Kilometer 14 on the road between Pinar del Kio and Vinales. It 

 is pale yellow, with white denticulations at the summit and white 

 peristome. In some specimens faint brown spiral lines are indicated, 

 and some individuals also show an axial dark band behind the 

 peristome. 



