CERION, GROUP III. 195 



Length 21, diam. 9^ mill. 



San Domingo: (Gabb, Salle); Haiti: Tuma (H. Prime); near 

 Jeremie, Cote de Fer (Maynard). 



C. (Maynardia) yumaensis P. & V., New species of the genus 

 Cerion, p. 5 (May 4, 1895); P. A. N. S., 1895, p. 210 (June 18); 

 P. A. N. S., 1896, p. 324, pi. 11, f. 2, Z.Strophiaferruginea MAY- 

 NARD, Contrib. to Science, iii, p. 19, pi. 4, f. 5, 6 (March, 1896). 



This Haitian form differs from G. crassilabre by its coarser sculp- 

 ture and less rounded apex. It is not like any Cuban species. The 

 specimens before me from Gabb and Salle w^re apparently collected 

 in the San Domingo part of the island. The types, a large series 

 from Henry Prime, are labelled " Yuma, Haiti " a place I have 

 not found on maps at my command. I formerly thought it might be 

 Yuna River, but this is in S. Domingo, and my label is clearly Tuma. 



Var. ferrugineum Maynard. (PI. 33, fig. 59). Rusty-red, the 

 riblets white, whorls 9. Riblets less numerous than in typical yu- 

 maense, 26 on the last whorl. Teeth moderately developed. Size 

 varies from 22J mill, long, 10 wide, to 19^x9^ mill. The types are 

 from " near Jeremie, Cote de Fer." 



Var. sallei Pi Is. and Van. (PI. 33, fig. 61.) Shell much smaller, 

 cylindric, white or cream-white, more or less maculate on the cone 

 with purplish or fleshy. Whorls 9-9J, but slightly convex. Termi- 

 nal cone with convex outlines, the apex obtuse. Sculpture of close, 

 fine riblets, 40 to 44 on the penult, whorl, separated by intervals 

 of about the width of the riblets. Aperture ovate, brown or ochre- 

 brown inside, fading to white at the lip ; parietal lamella small and 

 rather short, axial lamella small. Length 19, diam. 7-| mill. 



San Domingo (Salle"). 



Cerion crassilabre sallei PILS. and VAN., Proc. A. N. S., Phila., 

 1896, p. 325, pi. 11, f. 6. Pupa striatella var. minor, KUESTER, 

 Conchyl. Cab., p. 92, pi. 11,. f. 13-15. 



Formerly referred to C. crassilabre^ but it seems to be more 

 closely related to yumaense, differing chiefly in the smaller size and 

 more numerous, finer riblets. 



With the type lot of C. yumaense there were many specimens of a 

 smaller, fine-ribbed form, which seems referable to sallei. The shells 

 vary a good deal in contour, and are white except for some macula- 

 tion near the apex ; riblets 35 to 38 on the penult, whorl ; whorls 

 8J to 9J. The parietal lamella varies from as well developed as in 

 C. sallei to subobsolete or wholly wanting. 



