136 UROCGPTIS OF JAMAICA. 



The spire is shaped like that of U. procera. PI. 64, fig. 2, is 

 from a specimen in coll. G. H. Clapp. 



There is a white form of this species (pi. 29, figs. 31, 32), 

 but its locality is unknown to me. 



At Spur Tree Hill, Manchester (Henderson), a form occurs 

 (pi. 29, figs. 25, 26) varying in color from slightly olivaceous 

 dull yellow to deep carmine-rose, the basal keel weak, as usual, 

 often not developed on the first half of the base. A specimen 

 measures 23.7 x 6.8 mm., whorls 8y 2 . In color some of these 

 specimens approach U. procera. 



(2) Var. MAGNA (C. B. Adams). PI. 28, figs. 1, 2, Spring 

 Garden, Trelawny; fig. 3, Cowick Park, Trelawny; fig. 4, 

 Aenon Town, N. border of Clarendon. Shell large and solid, 

 of various shades of rose, whorls about 8, convex, the last with 

 a faintly indicated keel only, rarely distinctly developed, and 

 sometimes scarcely visible. 



Length 31, diam. 10 mm. ; whorls 8. Spring Garden. 



Length 31.5, diam. 8.7 mm. ; whorls 8 l /2. Spring Garden. 



Length 29.5, diam. 9.5 mm. ; whorls iy 2 . Spring Garden. 



Length 30.5, diam. 11 mm. ; whorls iy 2 . Aenon Town. 



Length 33.6, diam. 10 mm. ; whorls 9. Cowick Park. 



C. rosea var. magna and var. major C. B. A., Contrib. no. 2, 

 p. 21. C. cylindrus Chemn., in part, PFR., Conchyl. Cab., pi. 

 1, f. 26, 27. SOWERBY, C. Icon., xx, pi. 2, f . 9 a, 9 &. 



This race includes C. rosea var. major C. B. A. It inhabits 

 the high mountain region of the central part of the island, 

 area no. 8 b of map 2. Besides the localities mentioned above, 

 specimens also collected by Mr. Jar vis are before me from 

 Mile Gully, Manchester and Maroon Town, St. James. Pos- 

 sibly those from the latter locality may be referable to U. 

 zonata, as the shells are solid, brown with a pale sutural bor- 

 der, and a rather strong basal keel ; but the place is eastward 

 fi*om the well established range of zonata. 



The more solid shell, roseate color and weak basal keel sep- 

 arate this variety from U. cylindrus. 



C. B. Adams' original descriptions ( !) follow: 



"Cylindrclla rosea Pfr. var. magna Ad. Length 1 inch; 

 breadth .34 inch. 



