CUBAN SUBFAMILY CHONDROPOMINAE — TORRE AND BARTSCH 377 



head where they become confluent. White blotches are present on the 

 sides of the body. Head red within; base of tentacles whitish rose- 

 red, the middle mennig-red with the tip thickened and gray." 



The specimen described and figured, U.S.N.M. no. 354934, is one 

 of two from the Redfield collection obtained from Poey and labeled 

 as coming from Jacquecito, Baracoa. It has 4 whorls and measures : 

 Length, 9.4 mm; greater diameter, 6.1 mm; lesser diameter, 5.0 mm. 



CHONDROPOMA (CHONDROPOMISCA) UNILABIATUM (Gandlach) Pfeiffer 



Shell small, white, horn-color, yellow or orange. Nuclear whorls 

 2.5, very inflated, strongly rounded, forming a blunt apex, smooth, 

 excepting the last portion of the last whorl, which shows the begin- 

 ning of the postnuclear sculpture. Postnuclear whorls well rounded, 

 narrowly shouldered at the summit, marked by retractively slanting 

 axial riblets, which are a little more closely crowded upon the last 

 than the earlier turns. In addition to these riblets, the whorls are 

 marked by slender spiral cords, which render their junctions with 

 the axial riblets regularly, finely nodulose, while the spaces enclosed 

 between them are somewhat curved, rectangular and narrow, having 

 their long axis parallel with the axial sculpture. The angle at the 

 summit of the whorls is rendered crenulated by the tubercles of the 

 first spiral cord. Suture almost channeled. Periphery well rounded. 

 Base very broad, somewhat inflated, well rounded, narrowly openly 

 umbilicated, marked by almost equal and equally spaced spiral 

 threads, which render the axial riblets which continue over the base, 

 wavy; the outer limit of the umbilicus is marked by a strong spiral 

 cord and a second a little less strong on the midspace of the umbilical 

 wall; the umbilical wall is also marked by the continuations of the 

 fine axial riblets. Aperture broadly oval; peristome expanded with 

 a poor indication toward doubling at the posterior portion of the 

 inner lip, rather broadly expanded and reflected; parietal wall ap- 

 pressed and fused to the preceding turn ; operculum paucispiral with 

 subcentral nucleus. 



Of this Gundlach says, loc. cit.: "On cliffs at Baracoa. Animal 

 gray ; whitish dots form spots by their confluence on the sides of the 

 foot, on the base of the tentacles and on the neck. Black marks or 

 wavy confluent lines are present on the snout and in lesser numbers 

 upon the head. Tentacles of coral-red color without dots, their base 

 brighter with gray tip." 



This species occupies the region about Baracoa where several races 

 are present, each with a rather restricted habitat. 



