154 PROCEEDINGS OF THE NATIONAL MUSEUM Vol. 89 



This race occupies the limestone blocks south of Habana, in Habana 

 Province. We have seen it from Cueva de Cotilla, Lomas de Candela, 

 Loma de Coca, San Jose de las Lajas; Tetas de Managua, Tapaste; 

 Mendoza, Sitio de Bonilla and Sitio Perdido, near Jaruco; San 

 Antonio de los Banos; and Bacuranao and Guanabo east of Cojimar; 

 all in Habana Province. This subspecies differs from R. nodulatum 

 'palenquense in lacking the fluting of the inner lip. It differs from R. 

 nodulatum anajense in having the whorls much more inflated and 

 more rounded, and in having the axial ribs less strong. 



The specimen figured, U.S.N.M. No. 355561, comes from Tetas de 

 Managua, Habana Province. It has 78 axial ribs on all the turns. It 

 has 3.5 whorls remaining and measures: Length, 7.3 mm.; greater 

 diameter, 4.0 mm.; lesser diameter, 3.3 mm. 



RHYTIDOPOMA NODULATUM ANAPENSE, new subspecies 



Plate 10, Figure 9 



This race comes from the Sierra de Anafe, Habana Province. We 

 have also taken it at Guanajay, Pinar del Rio Province, and Cayajabos, 

 Finca de Francisco Martinez, Pinar del Rio Province. It differs from 

 the typical race in having the whorls larger but less inflated and 

 less rounded, and in having the axial sculpture stronger. 



The type, U.S.N.M. No. 355559, has 49 axial ribs on the first of 

 the remaining whorls and 72 on the last turn; it has 3.2 whorls remain- 

 ing and measures: Length, 7.5 mm.; greater diameter, 4.1 mm.; 

 lesser diameter, 3.5 mm. 



RHYTIDOPOMA OCCIDENTALE. new species 



Plate 10, Figure 16 



1878. Ctenopoma rugulosum Arango, Contribucion a la fauna malacologica 



Cubana, pp. 15-16, in part. 

 1890. Ctenopoma rugulosum Crosse, Journ. Conchyl., vol. 38, p. 276, in part. 



Shell broadly elongate-conic, flesh colored; the plug at the decollated 

 end shines through the substance of the shell as a reddish line. Nu- 

 clear whorls about 2, forming a slightly mammillated apex, strongly 

 rounded, microscopically granulose, with the last portion of the last 

 turn showing the beginning of the postnuclear sculpture. Postnuclear 

 whorls slightly inflated, well rounded, marked by rather distantly 

 spaced, slightly retractively slanting axial riblets which become irregu- 

 larly expanded at the summit. In the type 62 of these riblets occur 

 upon the first turn, 88 upon the second, and 93 upon the last. The 

 spiral sculpture is obsolete on the spire, only the merest indication 

 of it being present. Sutiu-e strongly constricted. Periphery well 

 rounded. Base short, inflated, well rounded, and marked by the 

 continuation of the axial riblets and by 11 feeble spiral threads on the 



