CUBAN ANNULARIIDAE — TORRE AND BARTSCH 335 



those on the base are a little weaker than those on the spire. Aper- 

 ture very broadly ovate; peristome double, the inner slightly exserted 

 and reflected, and fused with the outer on the outer and the basal 

 lip ; the outer narrowly expanded, a little narrower on the parietal wall 

 than on the rest, adnate to the preceding turn. Operculum 

 typically annularid. 



The specimen described and figured, U.S.N.M. No. 355877, is a 

 cotype collected by Arango at Lomas del Cuzco, Pinar del Rio. It 

 has a little over 4 whorls and measures: Length, 13.7 mm.; greater 

 diameter, 8.3 mm.; lesser diameter, 6.2 mm. 



ANNULARIA (TROSCHELVINDEX) BARBOURI, new species 



Plate 38, Figure 5 



Shell elongate-ovate, of flesh-colored ground color, marked by inter- 

 rupted spiral bands of brown. The spots composing these give one 

 the impression of ink spots diffusing laterally; that is, they are not 

 sharply cut at the border. Nuclear whorls almost 2, well rounded, 

 microscopically granulose, forming a slightly blimt, tapering apex. 

 Postnuclear whorls increasing rapidly in size, inflated, strongly round- 

 ed, and marked by slightly retractively slanting axial ribs, which are 

 very faint on the middle of the turns, where they are almost obsolete, 

 but which form very conspicuous, hollow tufts at the summit, either 

 individually or by the diffusion of several riblets. The spiral sculp- 

 ture consists of slender threads, which are also obsolete, and they look 

 almost as if they were in the interior of the shell substance. The 

 combination of the axial riblets and the spiral thi'eads forms a netlike 

 pattern. Suture channeled. Periphery decidedly inflated, strongly 

 rounded. Base short, openly umbilicated, strongly rounded, marked 

 by spiral tlireads, which increase in strength from the periphery 

 anteriorly. The umbilicus is marked by the feeble continuation of 

 the axial riblets, which arc narrower at this point, and by a series of 

 spiral cords, which increase in size from within toward the outside; 

 the last two bordering the umbilicus are much stronger than the rest. 

 Aperture broadly oval; peristome double, the inner exserted and 

 slightly reflected; the outer broadly expanded, somewhat fluted and 

 crenulated on the inner lip, forming a very conspicuous auricle at the 

 posterior angle, and marked by concentric laminae. Operculum 

 typically annularid. 



The type, U.S.N.M. No. 535554, was collected by Drs. de la Torre 

 and Barbour at Mma de Pozo Prieto, Alto de los Negros, Sierra Maestra. 

 It is a complete specimen of 6.6 whorls and measiu"es: Length, 14.3 

 mm.; greater diameter, 8.6 mm.; lesser diameter, 7.0 mm. 



