CUBAN SUBFAMILY CHONDKOPOMINAE — TORRE AND BARTSCH 289 

 CHONDROTHYRETES RETICULATA ENCINARENSIS, new subspecies 



PiATH 21, Figure 2 



This race is confined to the mogote known as La Mina or Encinar 

 de Alto. It is the easternmost of the larger races. It is light in 

 color, ranging from flesh-color to pale orange, never banded, except 

 for the moderately broad zone immediately below the white line at the 

 summit. This dark band, combined with the absence of other band- 

 ings, readily distinguishes this from all the other races, except an 

 occasional specimen of G. r. costanerensis. 



The type, U.S.N.M. no. 468984, a complete specimen, has 7.0 whorls 

 and measures: Length, 26.0 mm; greater diameter, 16.7 mm; lesser 

 diameter, 11.3 mm. 



CHONDROTHYRETES RETICULATA COSTANERENSIS, new subspecies 



Plate 21, Figltre 8 



This race occupies the Costanera San Vicente and the Costanera 

 del Abra. Here again we have an enormous range of color variation, 

 which extends from white to straw-color, to yellow, to orange, to 

 brown ; the shell may be mottled, banded, or flecked, unicolor or inter- 

 ruptedly banded. We find here also an extension of the La Mina fea- 

 tures, namely, a dark spiral band immediately below the white line 

 at the summit. This, however, is not constant but appears to be 

 present in about one-third of the shells. A dark varicial line behind 

 the peristome is present in most specimens. The expanded peristome 

 itself is not rayed, or bears the merest indication of rays at its base on 

 the outside. Specimens from Hoyo de Magdalena are redder than 

 those of other parts of the range of this subspecies. 



The type, U.S.N.M. no. 468900, comes from Costanera San Vicente. 

 This is a complete specimen having 6.3 whorls and measures : Length, 

 27.8 mm ; greater diameter, 17.7 nun ; lesser diameter, 12.6 mm. 



CHONDROTHYRETES RETICULATA GALERENSIS, new subspecies 

 Plate 20, Figure 10 



In this race, which occupies the western end of the Sierra Galera, 

 the shells are of medium size and thin, and they vary from pale orange 

 to brown. The usual white line at the summit is scarcely indicated, 

 and the peristome is free of rays, except for mere indications. 



The type, U.S.N.M. no. 492895, has 4.3 whorls remaining and meas- 

 ures: Length, 25.2 mm; greater diameter, 15.9 mm; lesser diameter, 

 12.2 mm. 



66879—38 7 



