274 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.89 



TUDORA (AGUAYOTUDORA) AGUAYOI GUAICANAMARENSIS. new subspecies 



Plate 27, Figure 1 



This subspecies comes from La Caridad de Guerrero, Sierra de 

 Guaicanamar, Camagiiey Province. We have seen it also from La 

 Sierrita, Sierra de Guaicanamar, Camagiiey Province. Its slender 

 form easily distinguishes it from the typical race and the much more 

 distantly spaced ribs distinguish it from T. {A.) aguayoi najazaensis. 



The type, U.S.N.M. No. 493478, has 7 whorls and measures: 

 Length, 13.2 mm. ; greater diameter, 7.0 mm. ; lesser diameter, 5.9 mm. 



TUDORA (AGUAYOTUDORA) AGUAYOI NAJAZAENSIS, new subspecies 



Plate 27, Figure 3 



This subspecies comes from El Cacacaotal, Sierra de Najaza, 

 Camagiiey Province. This race resembles T. {A.) aguayoi guaicana- 

 marensis, but differs from it in having the last whorl solute and the 

 axial ribs more numerous and more closely spaced and rather conspic- 

 uously nodulose on the early turns. 



The type, U.S.N.M. No. 493480, has 7.1 whorls and measures: 

 Length, 12.7 mm.; greater diameter, 6.5 mm.; lesser diameter, 5.6 mm. 



TUDORA (AGUAYOTUDORA) VARICOSA, new species 



Plate 27, Figure 8 



Shell broadly oval, thin, pale yellow, with very broad, interrupted 

 spiral bands of brown, and with a broad chestnut-colored band at the 

 summit. Nuclear whorls decollated in all our specimens. Post- 

 nuclear whorls very strongly inflated, rounded, and marked by axial 

 ribs, which vary from sublamellar to one or more slender elements 

 between them. These ribs are expanded at the summit and not at 

 all expanded at the periphery in the early turns. The spiral sculpture 

 is absent on the spire. Suture strongly constricted. Periphery 

 inflated, strongl}-^ rounded. Base short, inflated, strongly rounded, 

 marked by the continuation of the axial ribs. The wall of the broadly 

 open umbilicus, in addition to the continuation of the ribs, is marked 

 by 8 spiral threads, which render the stronger axial ribs nodulose. 

 Last whorl solute for about one-tenth of a turn. Aperture almost 

 circular; peristome simple. Operculum typically tudorid. 



The type, U.S.N.M. No. 493482, comes from the Sierra del 

 Cachimbo, east of the Sierra de Najaza, Camagiiey Province. It 

 has 4.2 whorls remaining and measures: Length, 9.7 mm.; greater 

 diameter, 7.5 mm.; lesser diameter, 6.0 mm. 



