136 UROCGPTIS OF JAMAICA. 



The spire is shaped like that of U. procera. PL 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). PL 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 7 l / 2 . Spring Garden. 



Length 30.5, diam. 11 mm. ; whorls 7%. 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 V Conchyl. Cab., pi. 

 1, f. 26, 27. SOWERBY, C. Icon., xx, pi. 2, f . 9 a, 9 6. 



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. Jarvis 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 

 from 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: 



ll Cylindrella rosea Pfr. var. magna Ad. Length 1 inch; 

 breadth .34 inch. 



