CUBAK AJSTNtfLAllIlDAE — TORRE AND' BARTSCH 309 



are marked by feeble spiral cords. Aperture very broadly ovate; 

 peristome double, with a slight notch at the posterior angle. Oper- 

 culum with reflected lamella, which does not reach to the outer margin 

 of the chondroid basal whorls. 



Type: Annularia (Fossularia) bogueronensis, new species. 



KEY TO THE SPECIES OF THE SUBGENUS FOSSULARIA 



Axial ribs fine and closely spaced inquisita 



Axial ribs not fine or distantly spaced boqueronensis 



ANNULARIA (FOSSULARIA) INQUISITA (Pilsbry) 



Plate 34, Figure 5 

 1929. Choanopoma inquisita Pilsbry, Nautilus, vol. 42, p. 80, pi. 5, fig. 2. 



Shell elongate-conic, flesh colored, with interrupted spiral bands of 

 brown, 4 of which are between the summit and suture, and 4 are on the 

 base; peristome corresponding to the ground color. Nuclear whorls 

 decoUated in all our specimens. Postnuclear whorls inflated, strongly 

 rounded, marked by retractively curved, well elevated axial riblets, 

 which are a little narrower than the spaces that separate them. Of 

 these, 178 are present on the last whorl. These riblets become a 

 little paler and slightly intensified on the summit and therefore are 

 more dift'erentiated here than on the rest of the turn. Suture well 

 constricted. Periphery inflated, strongly rounded. Base rather 

 short, inflated, strongly rounded, marked by the continuation of the 

 axial ribs, and near the umbilical wall marked by several obsolete 

 threads. The umbilicus is moderately broad and its wall is marked 

 by hairline continuations of the axial ribs and apparently by no 

 spiral sculpture. The last whorl is solute for about one-tenth of a 

 turn. Aperture broadly oval; peristome double, the inner slightly 

 exserted, reflected and appressed to the outer, which is narrowly 

 expanded, and which develops into a channel at the posterior angle. 

 Operculum typically fossularid. 



The specimen described and figured, U.S.N.M. No. 426045, a para- 

 type received from Dr. H. A. Pilsbry, comes from Florencia, Camagiiey 

 Province. It has 4.3 whorls remaining and measures: Length, 14.7 

 mm.; greater diameter, 10.3 mm.; lesser diameter, 7,8 mm. 



ANNULARIA (FOSSULARIA) BOQUERONENSIS, new species 



Plate 34, Figure 6 



Shell elongate-conic, pale yellow, with the faintest indication of 6 

 interrupted spiral bands of brown between summit and suture; similar, 

 much fainter bands are indicated on the base. Nuclear whorls 



