CUBAN ANI*rtJLABIIDAE — ^TORRE AND' BARTSCH 269 



closely approximated on the later whorls, where they develop mto 

 strong cusps at the summit, which are very variable in strength. At 

 the periphery on the early turns they also become strengthened into 

 elongate, scalloplike elements. The spiral sculpture is indicated by a 

 few threads on the first turn, but disappears on the succeeding turns. 

 Suture well constricted. Periphery of the last whorl strongly inflated 

 and rounded. Base short, openly umbilicated, inflated, strongly 

 rounded, and marked by the continuation of the axial ribs and by a 

 spiral cord at the outer edge of the umbilicus. There is the merest 

 indication of a second cord a little posterior to this. The exposed 

 portion of the umbilical wall is marked by 10 equally strong and 

 equally spaced sphal cords, of which only the outer one is a little 

 heavier than the rest. Aperture subcircular; peristome simple. 

 Operculum typically tudorid. 



The type, U.S.N.M. No. 493438, comes from Palomar de San Jose, 

 Sierra de Guaicanamar, Camagiiey Province. It has 6.2 whorls and 

 measures: Length, 13.0 mm.; greater diameter, 7.8 mm.; lesser 

 diameter, 6.3 mm. 



We also have specimens from La Caridad de Guerrero, Sierra de 

 Guaicanamar. 



TUDORA (AGUAYOTUDORA) BERMUDEZI, new species 



Shell elongate-ovate, thin, pale horn colored, with interrupted spiral 

 bands of bro^vn. Nuclear whorls 2, inflated, strongly rounded, micro- 

 scopically granulose. Postnuclear whorls high between the summit 

 and suture, rather strongly inflated, marked by retractively curved, 

 rather distantly spaced axial ribs, which are expanded into scallops 

 at the summit and on the early tm^ns, sUghtly thickened at the per- 

 iphery, where they form weak interlocking elements with the scallops 

 at the summit of the succeeding turn. Spiral sculptm-e absent on the 

 sphe. Sutm-e constricted. Periphery well rounded. Base moderately 

 long, narrowly, openly umbilicated, marked by the continuation of 

 the axial ribs and on the umbilical wall by spiral threads, which 

 become a little stronger toward the edge of the umbilicus than within. 

 Last whorl solute. Aperture broadly oval ; peristome simple. Oper- 

 culum typically tudorid. 



The species appears Umited to Camagiiey Province. 



We are recognizing two subspecies, which the following key and 

 descriptions will help to differentiate: 



KEY TO THE SUBSPECIES OF TUDORA (AGUAYOTUDORA) BERMUDEZI 



Shell stout bermudezi 



Shell slender sibanicuensis 



