78 BUX*L(ETIiN 181, UTSTITEID SITATEI8 NlATXlOOSnAlL MTJSIEIUM 



CYCLOPILSBRYA (CYCLOPILSBRYA) RUFILABRIS (Chitty) 



Plate 13, Figures 1-3 

 1857. Cyclotus jugostis rulilalris Chitty, Proc. Zool. Soc. London, vol. 25, p. 156. 



Shell small, helicoid. Nuclear whorls flesh colored, the succeeding 

 rose red, the rest brown with a reddish flush; aperture red. The 

 nucleus consists of a little more than a well-rounded, smooth turn. 

 The postnuclear whorls are marked by rather closely spaced, poorly 

 developed, slightly retractively curved axial riblets. Beginning with 

 the last half of the penultimate whorl irregular wrinkles make their 

 appearance. These are strongest immediately anterior to the summit, 

 where they appear as gi'oups of heavy broad nodules. Anterior to 

 this the finer cords, which are decidedly oblique and irregular, are 

 present. Suture well impressed on all the whorls except the last part 

 of the last, in which the summit creeps up on the preceding turn. The 

 periphery is well rounded and marked by the continuation of the 

 sculpture of the spire. Base inflated, strongly rounded, with very 

 strong, protractively curved, oblique wrinkles, which are separated by 

 spaces as wide as the wrinkles. These do not extend to the periphery, 

 but fade out toward the middle of the base, the anterior part being 

 sculptured like the upper surface. The umbilicus is not very broad 

 and its wall is marked by rather strong axial ribs, which, like the 

 spaces between them, bear fine incremental lines. Aperture circular, 

 decidedly oblique, protracted into an angle at the posterior angle; 

 outer lip of the peristome thin, the inner somewhat thickened. 

 Operculum typically cyclopilsbryid. 



The specimen figured, U.S.N.M. No. 356148, bears the label "Ja- 

 maica," without detailed locality. It has 4.5 whorls and measures: 

 Height, 12.2 mm. ; greater diameter, 16.8 mm. ; lesser diameter, 12.5 mm. 



Three additional lots are in the collection of the National Museum. 

 Two of these come from Balaclava, St. Elizabeth Parish, and another 

 from Pepper, St. Elizabeth Parish. 



This species resembles most nearly C. (C.) aspervla (Sowerby), 

 from which it can readily be distinguished by its stronger sculpture. 



CYCLOPILSBRYA (CYCLOPILSBRYA) ASPEBULA (Sowerby) 



Plate 13, Fiqubes 4-6 



1843. Cijclostoma asperulum Sowerby, Thesaurus conchyliorum, vol. 1, p. 91, pi. 



23, fig. 3. 

 1852. Cyclotus aspendus Pfeiitee, Monographia pneumonopomorum viventium, 



vol. 1, p. 21. 

 1898. NeocyrJotus ( Fleet ocy clot us) asperulus Kobelt and Mollendobff, Nachrb. 



deutschen malak. Ges., vol. 29, p. 138, reprint. 



