10 



ANOMA. 



Jamaica: Moncrieff Gully, parish of St. Ann, on a plant 



(Gloyne). 



Cylindrella tricolor PFR., Zeitschr. f . Malak., iv, 1847, p. 67 ; 

 Monogr., ii, p. 384; Conchyl. Cab., p. 69, pi. 7, f. 27, 28. 

 GLOYNE, Journ. de Conch., xx, 1872, p. 34. BLAND, Ann. 

 Lye. N. H. of N. Y., vi, p. 154 (1855). Cj/Z. gossei PPR., Phil., 

 Abbild., ii, p. 218, pi. 1, Achatina, L lO.Cijl. maugeri var. 

 raphinina CHITTY, Contrib. to Conch., p. 11 (Oct., 1853). 



This species is distinct by its slender shape, much attenu- 

 ated and very narrowly truncate spire, and acute, strongly 

 projecting basal keel. The streaks are often brownish-gray 

 on the upper half of the shell, and the chestnut stripes behind 

 the lip and on the base show conspicuously in the aperture. 

 The last whorl is delicately rib-striate, the rest of the shell 

 only faintly striate. The axis is thickened and sinuous in the 

 last whorl, and usually appears truncate in an oblique view 

 in the aperture. 



Pfeiffer's description is translated above, and his figures 

 copied, pi. 17, f. 6, 7. The italics are mine. Specimens be- 

 fore me measure 17.5x4.2 mm., with 14 whorls (the first 3 

 above the septum) ; 17 x 3.8 mm., with 12y 2 whorls, etc. Both 

 Bland and Pfeiffer, after seeing specimens of C. m. raphinina 

 from Chitty, pronounced it identical with tricolor. It was 

 described from " St. Ann's." Chitty's description is very 

 apt radish-shaped, cream- white, with alternate rectangular 

 and other spots of very pale reddish-ash color, etc. 



Von Martens records this species from Haiti, specimens 

 occurring in the collection made by Weinland in the neighbor- 

 hood of Jeremie (Malak. BL, vi, 1859, p. 56, in text under 

 Mac. angulatus), but no other Haitian collector has found it. 

 It seems unlikely that a species of very limited distribution 

 in the middle of Jamaica would occur in Haiti, either native 

 or introduced; but Macroceramus virgincus described from 

 Jeremie is excessively like the Jamaican maugeri, and placed 

 next to it by von Martens. 



3. A. GRACILIS (C. B. Adams). 



Shell quite slender ; pearl-white, with a pure white keel and 



