358 PROCEEDINGS OF THE NATIONAL. MUSEUM Vol.89 



cords, produce a fenestrated pattern. The edge of the umbihcus, 

 which is practically the middle of the base, is marked by a strong cord. 

 Between that and the inner umbilical wall there are 3 additional strong 

 cords, with 5 between the first and the next strong cord, and a slender 

 one between the other two. The umbiHcal wall itself shows 21 spiral 

 cords and rather well elevated, slender, closely spaced, axial riblets. 

 The last whorl is solute for about one-tenth of a turn. Aperture 

 broadly oval; peristome simple. Operculum bermudezid. 



The type, U.S.N. M. No. 493493, comes from Lomas del Purio, 

 Calabazar, Santa Clara Province. It has 6 whorls and measures: 

 Length, 16.2 mm.; greater diameter, 13.3 mm.; lesser diameter, 10.4 

 mm. 



The species seems to be present on all the limestone blocks 

 surrounding the Central Purio. 



ANNULARIA (BERMUDEZIA) OBLITERATA, new species 



Plate 46, Figure 4 



Shell of turbinate outline, rather large, very thin, translucent, straw 

 colored, with interrupted spiral bands of brown; the irregular spots 

 composing these bands are broad and irregularly spaced; they are 

 arranged in both axial and spiral series. They are present on the spire, 

 base, and umbilical wall. The nuclear whorls do not have a broad 

 sutural band. Nuclear whorls 2, well rounded, microscopically 

 granulose. The first 2 postnuclear whorls are marked by retractively 

 slanting, slender, axial riblets while on the succeeding whorls these 

 riblets become reduced, until on the last whorl only incremental lines 

 are present. On the first postnuclear whorl there are indications of 

 microscopic spiral striations, which also vanish as the shell increases 

 in size. Suture well impressed. Periphery strongly rounded. Base 

 moderately long, openly umbilicated, strongly rounded, and marked 

 by the continuation of the lines of growth, and obsolete spiral threads 

 and weak malleations. The umbilical wall is marked by fine, rather 

 closely spaced, axial threads. The last whorl is slightly solute. Aper- 

 ture broadly oval ; peristome simple. Operculum typical bermudezid. 



The type, U.S.N.M. No. 493494, which comes from Cerro de 

 Guajabana, Santa Clara Province, has lost the nucleus. The 5 re- 

 maining whorls measure: Length, 19.2 mm.; greater diameter, 15.2 

 mm.; lesser diameter, 12.7 mm. 



ANNULARIA (BERMUDEZIA) CAPESTANYI new species 



Plate 46, Figure 5 



Shell of turbinate outline, thin, semitranslucent, pale straw colored, 

 with interrupted spiral bands of chestnut brown, which are composed 

 of rather elongated streaks, arranged in both axial and spiral series. 



