278 . CERION, GROUP XIV. 



C. STRIATELLUM ( Fer.' Guerin). PI. 46, figs. 19-23. 



Shell shortly rimate, cyl indric, very solid and strong ; flesh-colored 

 with white striae ; or white, and more or less maculate with fleshy. 

 Sculpture of fine, close-set, rounded rib-striae, about 45 in number on 

 the. penultimate whorl. Last three whorls wide, those above form- 

 ing a rather straight- sided cone, the apex obtuse. Whorls about 9J, 

 nearly flat, the last well-rounded beneath, ascending in front. Aper- 

 ture ovate or circular, the peristome reflexed, thick in mature shells, 

 often so much thickened inside as to reduce the opening to an almost 

 circular contour ; the parietal callus is thickened into a strong ledge. 

 Parietal lamella strong and long, making over one-third of a revolu- 

 tion, a little narrower or interrupted in the middle, with a small 

 denticle at this point between the lamella and the columellar axis. 

 Axial lamella small or inconspicuous. 



Length 21 to 23, diam. 9 mill. 



Length 17. diam. 8 mill. 



Southern Cuba: Cabo Cruz (Arango, Gundlach et al.'). 



Helix striatella FER. in coll. Pupa striatella Fer., GUERIN, 

 Iconographie de Regne Animal de G. Cuvier, Moll., pi. 6, f. 12. 

 DESK, in Fer., Hist., ii, p. 209, pi. 156, f. 11-13. Cerion striatellum 



PILS. & VAN., Proc. A. N. St, Phila., 1896, p. 326 Strophia 



striatella MAYNARD, Contrib. to Sci., iii, p. 9, pi. 2, f. 5, 6. Pupa 

 striatella (in part) PFR., Monogr., ii, p. 323 ; Malak. Bl., 1854, p. 



207, pi. 3, f. 11, 12, 13, 14(?) Not Cerion striatellum Fer., DALL, 



Bull. M. C. Z., xxv, no. 9, pi. 119. Not (?. striatellum DALL & 

 SIMPSON, Moll, of Porto Rico, p. 376, pi. 53, f. 4, = C. crassilabris. 



A common shell at Cabo Cruz, the southwestern cape of Santiago 

 de Cuba province. Other localities must be viewed with suspicion. 

 " Haiti, Porto Rico, Anegada " of Pfeiffer's Monographia are records 

 based upon the externally similar C. crassilabris and yumaensis. But 

 in the Malakozoologische Blatter, i, 1854, Pfeiflfer reports P. stria- 

 tella from Punta de Jicaco, Cayo de Cinco Leguos and Cayo Iguana, 

 off the northern shore of Matanzas province. 1 have no idea what 

 these shells may be, but it is not likely that they are identical with 

 the Cabo Cruz striatellum. Probably they belong to the maritimum 

 group. 



This species differs externally from C. crassilabris in being more 

 straightly conic and less obtuse above, and in the strongly-developed 

 parietal callus. It is the representation of these two features which 



