376 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 85 



KEY TO THE SPECIES OF SUBGENUS CHONDROPOMISCA 



Shell inflated, very broadly ovate. 



Sculpture very coarse greenfieldl 



Sculpture fine revocatum 



Shell not inflated, not very broadly ovate. 

 Shell ovate. 



Nodulations of whorls strong rufopictum 



Nodulations of whorls not strong. 



Nodulations very fine and regular. 



Axial and spiral sculpture of equal strength solidulum 



Axial and spiral sculpture not of equal strength. 



Spiral sculpture stronger than axial unilabiatum 



Shell not ovate. 



Shell elongate-ovate aguayoi 



CHONDROPOMA (CHONDROPOMISCA) RUFOPICTUM (Gundlach) Pfeiffer 

 Pl^TE 39, FiGUKE 2 



1860. Cyclostama (Chondropoma) rufopictum (Gundlach) Pfeiffek, Malakozool. 

 Blatter, vol. 7, pp. 30-31. 



Shell small, ovate, the first postnuclear turn is dark brown on the 

 posterior half, the rest, as well as the succeeding whorls, are flesh- 

 color, with spots of brown arranged in axial and spiral series. 

 Postnuclear whorls well rounded but not inflated, narrowly shoul- 

 dered at the summit, marked by rather strong, slightly retractively 

 slanting, slender axial ribs, wiiich are rather distantly spaced on 

 all the turns, and five feeble spiral cords, which are obsolete on 

 the first turn; the junctions of the spiral cords and the axial riblets 

 form poorly developed nodules, an occasional one of which is thin 

 and hollow. The axial riblets extend strongly to the shoulder at 

 the summit, which they render crenulated. Suture almost channeled. 

 Peripher}^ obsoletely angulated. Base well rounded, rather openly 

 umbilicated, the outer limit of the umbilicus marked by a strong 

 spiral cord and two, a little less strong aI;^ present within the um- 

 bilicus. In addition to this, the base is marked by the continuation 

 of the axial riblets. Aperture pyrif orm ; peristome double, the inner 

 slightly reflected and marked by alternate rays of pale brown and 

 darker brown ; the outer closely approximated to the inner all around 

 except at the posterior angle where it is projected to form a slight 

 ear. Here several lamellae are present, filling the gap between the 

 two peristomes ; the parietal wall is appressed to the preceding turn. 

 Operculum paucispiral with subcentral nucleus, the outside covered 

 with a thin deposit of fine granules. 



Of this Gundlach states, Joe. cit. : "On trees and shrubs at Baracoa. 

 Animal pale or bright brownish. Black splotches or spots on the 

 neck and are present in greater numbers on the anterior end of the 



