CUBAN SUBFAMILY CHONDROPOMIXAE TORRE AND BARTSCH 237 



The type, U.S.N.M. no. 49271G, tlie only complete specimen that we 

 have seen in all the material examined of all the races, has 6.0 whorls 

 and measures: Length, 16.3 mm; greater diameter, 11.2 mm; lesser 

 diameter, 8.2 mm. 



ScoBlNAPOMA, new subgenus 



Very small Hendersonina of ovate shape with filelike sculpture on 

 the postnuclear whorls. Aperture very broadly ovate; peristome 

 double; outer and inner almost equal in expansion and reflection, 

 which is slight. 



Ty])^: Hendersonina {Scolmapoma) seolina (Gundlach) Pfeiffer. 



Three species are known in this subgenus, which the following key 

 will help to differentiate : 



Distribution of the species and subspecies of Scohinapoma is shown 

 in fiffure 82. 



; /SiT^ Diego 



3 9^^'lla. 



Herradura 



Figure 82. — Distribution of the si^ecies and subspecies of subgenus Scobiitai)oma: (1) 

 H. (S.) scobina galalonensis ; (2) scohina scobiiia and cirrata; (3) maculata. 



KEY TO THE SPECIES OF SUBGENUS SCOBINAPOMA 



Outer lip of same color as rest of shell scobina 



Outer lip not same color as rest of shell. 

 Outer lip spotted. 



Last whorl interruptedly banded maculata 



Last whorl not interruptedly banded cirrata 



