CUBAN SUBFAMILY CHONDROPOMINAE — TORRE AND BARTSCH 353 



to threads, which are quite regularly spaced. Here, too, we have in- 

 terrupted brown spiral bands. 



The specimen figured, U.S.N.M. no. 499616, has almost 4 whorls 

 remaining and measures: Length, 17.4 mm; greater diameter, 12.2 

 mm ; lesser diameter, 10.1 mm. 



CHONDROPOMA (CHONDROPOMA) MOESTUM MORALESI, new subspecies 



Plate 31, Figure 8 



This subspecies occupies the La Cumbre ridge, which trends north- 

 west of JVIatanzas harbor a couple of miles inland. It is a small race 

 having interrupted spiral zones of brown, the dots being usually also 

 arranged in axial series (sometimes the brown markings are absent). 

 Both the axial and spiral sculpture recall G . (C) tnoestum decurrens^ 

 from which it is easily distinguished by its small size. 



The type, U.S.N.M. no. 499615, comes from Finca Aurora, La 

 Cumbre. It has 3.8 whorls remaining and measures: Length, 12.1 

 mm ; greater diameter, 8.2 mm ; lesser diameter, 6.4 mm. 



CHONDROPOMA (CHONDROPOMA) MOESTUM MOESTUM (Shuttle worth) Pfeiffer 



Plate 31, Figure 12 



1854. Chondropoma mocstum (Siiuttleworth) Pfeiffer, Malakozool. Blatter, 

 vol. 3, p. 132. 



This subspecific name we are restricting to the shells from Punta 

 Sabanilla, which are large, of isabelline color, with axial streaks of 

 bluish lead color. Here the axial threads between the rather strong 

 spiral cords are almost absent on the last whorl. 



The specimen figured, U.S.N.M. no. 493179, has almost 4 whorls 

 remaining and measures: Length, 17.0 mm; greater diameter, 12.6 

 mm ; lesser diameter, 10.1 mm. 



CHONDROPOMA (CHONDROPOMA) GARCIANUM Torre 



Plate 31, Figure 9 

 1913. Chondropoma yarcianum Torre, Nautilus, vol. 27, p. 37, pi. 3, figs. 2, 3. 



Truncated shell broadly ovate, flesh-color. Nuclear whorls decol- 

 lated in all our specimens. Postnuclear whorls inflated, strongly 

 rounded, and marked by slender threadlike riblets, which become 

 slightly thickened, flattened, and expanded at the angle of the sum- 

 mit. The spiral sculpture consists of rather strong threads, which 

 are considerably farther apart than the axial riblets. The axial rib- 

 lets and spiral threads enclose slender oblong fenestrations, while 

 their long axis coincides with the axial sculpture. The junctions of 

 the axial riblets and spiral cords form slender nodules on the early 



66879—38 11 



