CUBAN SUBFAMILY CHONDROPOxMINAE TORRE AND BARTSCH 333 



The animal of this species was described from a specimen taken by 

 Bartsch on the mogote opposite Mogote Caoba on the east side of the 

 road between Coliseo and Banos de los San Miguel, July 24, 1928. 



The animal is short, with the forehead with numerous short streaks 

 and dots of brown, which give it a marbled appearance. The sole 

 of the foot is flesh-color, with a faint grayish suffusion, cleft deeply 

 medially; the motion of the two sides being alternate. The eyes 

 with a whitish ring, which extends to the base of the tentacles. Im- 

 mediately beyond these the upper surface of the tentacles for half 

 their length is dirty wdiite, while the under part and the rest are 

 orange with a brownish tinge, except the extreme tip, which is 

 slightly expanded and grayish. There is a darker line composed of 

 numerous fine black dots extending from the tentacles backward on 

 the sides. The side of tlie body is pale ashy gray, the areolations 

 marked by innumerable white dots. 



CHONDROPOMA (CHONDROPOMA) PICTUM (Pfciffer) 



Shell elongate-conic, thin, ranging in color from bluish white 

 through pale straw-color to butf and rather dark purplish brown, 

 nnicoloi-, or marked by interrupted spiral bands of brown, which 

 sometimes become almost continuous. In the dark-colored specimens 

 the bands are obscured but can usually be seen by transmitted light 

 within the aperture. Nuclear whorls almost 2, well rounded, smooth, 

 forming an almost truncated apex. The anterior half of the nuclear 

 turns is pale brown, while the rest is white. Postnuclear whorls well 

 rounded, narrowly shouldered at the summit, marked by obsolete, 

 retractively slanting axial threads and varicial streaks, which are of 

 irregular spacing. At inter^-als there are obsolete nodvdous thick- 

 enings of some of the riblets at the summit. The spiral sculpture 

 consists of low rounded threads, which are about as wide as the spaces 

 that separate them. Suture well constricted. Periphery of the last 

 whorl well rounded. Base short, well rounded, narrowly, openly 

 umbilicated. marked by the continuations of the axial sculpture and 

 spiral threads, the latter are here a little less strong than those on 

 the sjiire, and a little more closely spaced. Both the axial and spiral 

 sculpture are present on the umbilical wall. Aperture moderately 

 large, ovate; peristome simple, slightly expanded and slightly re- 

 flected, usually adnate to the preceding turn at the parietal wall. 

 Operculum paucispiral with the nucleus halfway between submar- 

 ginal and subcentral, the outside covered with a deposit of fine cal- 

 careous granules which are laid down in a more or less wavy manner. 



This species ranges from Varadero west through Habana to Pinar 

 del Rio Province. It is not confined to paradones but occurs also in 



