228 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.89 



PARACHONDRIA (PARACHONDRIA) TEXTA ([Gundlach] Pfeififer) 



Shell large, elongate-conic, pale hom-color with very faint inter- 

 rupted spiral bands of brown. The dots or spots composing these 

 bands are arranged in both axial and spiral series. Nuclear whorls 

 almost 2, inflated, well rounded, microscopically granulose. Post- 

 nuclear whorls well rounded, marked by slender, well-rounded axial 

 ribs, which are strongly elevated and gathered into tufts at the sum- 

 mit. In addition to the axial sculpture the whorls are marked by 

 slender, spiral threads, wliich render the axial ribs nodulose, the 

 nodules being oval with their long axis coinciding with the axial 

 sculpture. Suture moderately well constricted. Periphery well 

 rounded. Base moderately long, narrowly, openly umbilicated, 

 marked by the continuation of the axial riblets and by spiral 

 threads between the periphery and the outer angle of the umbili- 

 cus. These threads render the axial riblets nodulose, and they are a 

 little stronger than those on the spire. The outside of the umbilical 

 wall is also marked by slender spiral threads. The last whorl may be 

 slightly solute or the outer peristome may be adnate to the preceding 

 turn. Aperture broadly oval; peristome double, the outer broadly 

 flaringly expanded; the inner slightly expanded and appressed to the 

 outer. Operculum paucispiral with a chondroid basal plate with a 

 heavy calcareous deposit, wliich forms radiatingly curved, low ridges 

 that do not quite reach to the periphery of the turns. This operculum 

 stands midway between typical Chondropoma and Parachondria. 

 The species is known only from Oriente Province. We recognize the 

 following subspecies: 



KEY TO THE SUBSPECIES OP PARACHONDRIA (PARACHONDRIA) TEXTA 



Shell pale and inconspicuously spotted texta 



Shell not pale and rather conspicuously spotted. 



Axial ribs of uniform strength portillensis 



Axial ribs not of uniform strength booneae 



PARACHONDRIA (PARACHONDRIA) TEXTA TEXTA ([Gundlach] Pfeiffer) 



Plate 20, Figure 7 



1858. Cyclosloma textum (Gundlach] Pfeiffer, Malakozool. Blatter, vol. 5, p. 192. 

 1861. Chrondropoma iexiuin Bland, Ann. Lyceum Nat. Hist. New York, vol. 7, 



p. 27. 

 1920. Chondropoma (Chondropomorus) textum Henderson and Bartsch, Proc. 



U. S. Nat. Mus., vol. 58, p. 61. 



This typical subspecies was collected by Gundlach at El Morro, at 

 the entrance to the port of Santiago, Oriente. It is larger than the other 

 races, paler, with the brown spots almost obsolete, but their indica- 

 tion shows that here, also, they are in axial and spiral series. They 

 are rather distantly spaced. The axial riblets are quite slender, and 



