CUBAN ANNUUARIIDAE TORRE AND BARTSCH 235 



constricted. Periphery strongly rounded. Base moderately long, 

 strongly rounded, narrowly umbilicated, marked by the continuation 

 of the axial ribs and by 8 spiral threads of about the same strength as 

 those on the spire, while within the umbilicus 5 additional spiral 

 threads are present. Last whorl solute for about one-fourth of a turn, 

 and shghtly deflected. Aperture broadly oval; peristome double, 

 the outer expanded into a conspicuous auricle at the posterior angle, 

 narrow on the outer lip, and Avider on the inner and basal lip, and 

 again narrow on the parietal wall; the inner moderately exserted and 

 rather broadly expanded. Operculum paucispiral with the nucleus 

 halfway between submarginal and subcentral; the turns are marked 

 on the outside by numerous, retractively slanting lamellae, which 

 extend over about three-fifths of the whorls, fusing on the inner 

 surface; the outer two-fifths of the turns are without reinforcement. 

 The specimen described and figured, U.S.N.M. No. 355391, comes 

 from the type locahty, Guisa, southeast of Bayamo, Oriente Province. 

 It was part of the Redfield collection and it was probably received 

 from Poey or Gundlach. It has a little over 4 whorls remaining 

 and measures: Length, 15.5 mm.; greater diameter, 7.8 mm.; lesser 

 diameter, 6.5 mm. 



PARACHONDRIA (PARACHGNDROPS) ABTIANA (Pfeiffer) 



Plate 21, Figure 11 

 1862. Tudora aUiana Pfeiffer, Malakozool. Blatter, vol. 9, p. 4. 



Shell elongate-conic, pale wax yellow with interrupted spiral bands 

 of brown. Nuclear whorls decollated in all our specimens. Postnu- 

 clear whorls well rounded and marked by slender, slightly elevated, 

 rather closely spaced axial riblets, which are gathered into hollow 

 tufts at more or less regular intervals at the summit. The spiral 

 sculpture consists of feeble tlireads, just strong enough to render the 

 axial riblets wavy or articulate. Suture well constricted. Periphery 

 somewhat inflated, well rounded. Base short, well rounded, marked 

 by the continuation of the axial ribs and by spiral threads that are 

 obsolete, except withm the umbilicus and the anterior two-thirds of 

 the base, where they become more intensified. The last whorl is 

 solute for about one-fifth of a turn. Aperture oval; peristome double, 

 the outer slightly auriculate at the posterior angle, rather heavy and 

 expanded, very shghtly wider on the columellar margin than on the 

 inner lip; the inner shghtly exserted, reflected, and appressed to the 

 outer. Operculum paucispiral, with a heavy deposit of calcareous 

 material, wliich is arranged in retractively curved folds suggesting a 

 development midway between Chondropoma and Parachondria. 



The specimen figured, U.S.N.M. No. 11055, is one of 3 collected by 

 Wright at Saltadero, Guantdnamo. It has 4.2 whorls remaining and 



