CUBAN ANNULAKiroAE— TORRE AND' BARTSCH 337 



Of these spiral cords 11 are present between the summit and the 

 periphery on the last whorl. Sutm'e strongly constricted. Base short, 

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

 axial ribs, which extend into the umbilicus, becoming narrower, more 

 lamellar, and more closely approximated on the umbilical wall. On 

 the base 9 spiral cords are present, which also render the intersection 

 with the ribs nodulose. The umbilical area is marked by 11 spiral 

 cords, wliich cause the axial riblets at their junction with the cords to 

 form very conspicuous, narrow, clawlike denticles. The umbilicus is 

 open and the last whorl is solute for about one-fifth of a turn. Aper- 

 ture broadly oval; peristome double, the iimer slightly exserted and 

 reflected, and adnate to the outer on the outer and basal lips; less so 

 on the imier lip. The outer peristome is broadly expanded, a little 

 narrower at the junction of the basal and inner lips, decidedly fluted 

 on the inner lip, conspicuously crenulated at its outer margin, forming 

 a very strong reflected auricle at the posterior angle, and marked by 

 concentric laminae. 



The type, U.S.N.M. No. 535557, was collected by Father Roca at 

 Las Barraqueras, Hongolosongo, Oriente Province. It has 4.9 whorls 

 remaining and measures: Length, 16.5 mm.; greater diameter, 10.3 

 mm.; lesser diameter, 7.8 mm. 



ANNULARIA (TROSCHELVINDEX) AGRESTIS (PfeiSTer) 



Plate 38, Figure 8 

 1862. Cistula agrestis Pfeiffer, Malakozool. Blatter, vol. 7, p. 216. 



Shell rather stout, elongate-ovate, of buff color with obsolete, 

 interrupted spiral bands. Nuclear whorls decollated. Postnuclear 

 whorls strongly inflated and strongly rounded, marked by somewhat 

 irregular, retractively slanting, slender axial riblets, which are moder- 

 ately distantly spaced on the early turns, but which become more 

 crowded as the shell increases in size. Of these riblets 76 occur on 

 the first turn, 98 on the second, 114 on the third, and 156 on the last. 

 At irregular intervals some of these riblets become expanded into 

 hollow denticles at the summit, or 2 or 3 of them may join together 

 to form a stronger denticle. The spiral sculpture consists of moder- 

 ately broad threads, of which 9 occur on the first and second, 13 on 

 the third, and 14 on the last turn between the summit and the suture. 

 The junctions of the axial ribs and spiral cords form rather strong 

 tubercles. The spiral threads are not all of the same strength, 

 and the resulting tubercles therefore also differ in strength. Suture 

 strongly constricted. Periphery strongly rounded. Base short, in- 

 flated, strongly rounded, openly umbilicated, marked by the contin- 

 uation of the axial ribs, which extend into the umbilicus, and by 7 

 spiral thi'eads of about the same strength as those on the spire, 



