HISPANIOLAN AND BAHAMAN ANNULARIIDAE 25 



by Augustus Salle in Haiti the name Chondropoma weinlandi,^ used 

 as type designation for the subgenus Chondropomium by Henderson 

 and Bartsch.io The type of the subgenus Chondropomium will therefore 

 have to be Chondropoma (Chondropomium) s'unftii weinlandi Pfeiffer. 



This by no means ends the difficulties that surround this species. 

 Chondropoma (Chondropomium,) swiftii as now known extends through 

 the lowlands of the CuI-de-Sac region of Hispaniola bordering Lakes 

 Saumatre (Assuei) and Enriquillo and the regions east of these to 

 Azua. In this range it breaks up into a number of distinct races, which 

 I am here designating subspecies. 



Pfeififer's figures, and specimens in the collection of the U. S. National 

 Museum, also collected by Salle, which so closely resemble Pfeiffer's 

 figures that they might have served as subjects for them, show plainly 

 that they represent distinct races. Unfortunately our specimens also bear 

 only "Haiti" as locality designation. Salle or the recipient of Salle's 

 collections evidently lumped kindred things together without keeping 

 specific locality records for them. 



H. Crosse, in his "Faune Malacologique Terrestre et Fluviatile de I'lle 

 de Saint-Domingue,"!^ pages 75-80, traces the peregrinations of Au- 

 gustus Salle in Hispaniola, which extended over the years 1847-51. 

 From this we know that Salle did some collecting on the north shore 

 of Lake Enriquillo. A large series of specimens gathered by Henderson 

 and Bartsch on the north shore of Lake Saumatre a little west of Salle's 

 collecting agree sufficiently well with Pfeififer's first figures, plate 37, 

 figures I and 2, and with specimens collected by Salle in our collection, to 

 make me feel secure in believing this region to represent the home of 

 specimens figured on Pfeififer's plate 37 as i and 2. I therefore now 

 restrict the subspecific name Chondropoma (Chondropomium) swiftii 

 weinlandi to this race. 



Pfeiflfer, on plate 49, figure 17, figures a shell that in every way agrees 

 with the photograph of Shuttleworth's Cyclostoma swiftii and with 

 specimens in our collection from the Salle collection. Our plate 4, 

 figure 2, is a copy of a photograph of Shuttleworth's type, while figure i 

 represents a specimen from the Salle collection. These, therefore, depict 

 the typical race. 



The species may be defined as follows: 



Shell elongate-ovate, ground color flesh-colored, marked with narrow 

 bands of interrupted spiral lines of brown, the early whorls frequently 

 with a deep brown zone near the suture; not infrequently the entire 

 shell is either plain flesh-colored or pale brown. Nuclear whorls almost 

 always decollated; postnuclear whorls narrowly shouldered at the sum- 

 mit and marked by somewhat retractively slanting, closely crowded. 



» Malakozool. Blatter, vol. 9, pp. 96-97. 

 "Proc. U. S. Nat. Mus., vol. 58, p. 60, 1920. 

 " Joum. Conchyl., vol. 39, pp. 69-211, 1891. 



