148 MACROCERAMUS, CUBA. 



Eastern Cuba: Ojucal, on the way from Guantanamo to 

 Baracoa, and in the cave of Malafio, both in the dist. of 

 Guantanamo ( Jeanner e t ) . 



M . variabilis PFR V Malak. BL, xi, p. 15, no. 70 ; Novit. 

 Conch., p. 385, pi. 89, f. 20-24; Monogr., vi, p. 354. ARANGO, 

 Fauna, p. 86. 



A smooth, tawny form with one white band was found 

 with the typical ribbed form, and with transition forms. I 

 have not seen the species. 



Group of M. canimarensis. 



The shell is rimate, thin, smoothish, the last whorl dis- 

 tinctly carinate below the periphery; the surface is smooth- 

 ish, but the last whorl becomes strongly striate beneath. 

 The peristome is thin, expanded throughout, the columellar 

 margin built forward to the plane of the outer lip, and 

 dilated. Protoconch of 2% to 2% whorls, smooth and glo- 

 bose, light with a brown apex, not deciduous; the whorls 

 succeeding it are pale and not distinctly striate. Suture 

 erenulate, at least above. 



A group of eastern and central Cuba, extending west to 

 Matanzas province. It is not closely related to any Haitian 

 group. M. microdon has much the same form, but the axis 

 is sinuous, not straight as in these Cuban species. 



33. M. CANIMARENSIS (Pfeiffer). PL 23, figs. 61, 62. 



Shell deeply rimate, thin, translucent gray-brown, copi- 

 ously striped with opaque white, irregular flames, which do 

 not pass below the white keel. Spire conic, its outlines 

 straight above, a little convex below. Apex light gray- 

 brown, obtuse; protoconch of 2y 2 smooth whorls moderately 

 convex, obsoletely striate, nearly smooth, the last more 

 strongly striate on the convex base and just above the cord- 

 like keel. Suture distinctly crenulate. Aperture nearly 

 round, the peristome thin, well expanded and a little reflexed. 



Length 14-15, diam. 5.3 mm., whorls lO 1 /^. 



Cuba: prov. Matanzas, in Canimar, at El Fundador and 

 Tumbadero (Pfr.). Palma Sola (Poey). Prov. Santa Clara, 



