218 CER1ON, GROUP V. 



An exceedingly embarrassing form, closely allied to C. sagrai- 

 amtm, from which it differs in distribution (if the assigned locality 

 is correct), in the shorter, more compact contour, the frequent dupli- 

 cation of the parietal lamella, and the broader striping of the typical 

 form. It is less heavily marked with brown than O. torrei, and 

 either has a longer terminal cone, or if as short, it is crowded down, 

 as though sat upon, and then has each whorl a little swollen below 

 the suture. 



The color varies from the rather broad striping of fig. 87, or a 

 dirty white, with more or less fleshy variegation on the spire (fig. 

 84), to dull fleshy brown, closely speckled and streaked with white 

 exactly the pattern of C. sagraianum (fig. 86). 

 Form maisianum Pilsbry, n. v. PL 30, figs. 89, 90, 91. 



Shell cylindric, with rather short, obtuse terminal cone, whitish,, 

 boldly striped with brown, the stripes mostly angularly interrupted 

 or dislocated. Whorls 9-10, sculptured closely and regularly with 

 rather narrow riblets, usually 40 to 45 on the penult, whorl, but 

 sometimes as few as 35. Parietal lamella of the aperture simple or 

 duplicated, as described above for -C. politum. Peristome moder- 

 ately thick. 



Length 29, diam. 11^ mill. Length 28, diam. 11 mill. 



Length 29, diam. 10^ mill. Length 23|, diam. 11 mill. 



Cuba : Panta Muisi (Arango, de la Torre). 



Pupa marmorata Pfr., ARANGO, Fauna Mai. Cubana, p. 101 (ex- 

 clusive of synonymy) Strophia marmorata Pfr., MAYNARD, Con- 

 trib. to Sci., iii, pp. 12, 13, fig. 2 A on p. 15; pi. 3, f. 1, 2. Not 

 P. marmorata Pfr. 



The present form is not mnrmorata of PfeifFer (^. r.), a species ot 

 the Bahamas, which is described as merely striatulate, while this 

 form has riblets. 



This variety, while resembling C. politum in contour, coloration 

 and teeth, is much like C. maritimum in sculpture ; and in fact, is 

 about as much like that species as typical C. politum is like sagrai- 

 anum. Maynard's specimens were said to be from Cnbo Cruz, and 

 were on the same tray with politum. Those before me are from 

 "Punta Maisi," sent by Arango. I suppose this to be Cape Maisi, 

 the eastern extremity of Cuba. Prof, de la Torre gave me one from 

 the same locality, informing me that a smooth form also occurs, 

 This smooth form is evidently politum. 



