UROCOPTIS OP JAMAICA. 129 



Jamaica : St. James and Trelawny parishes, along the coast 

 from a short distance east of Falmouth to the neighborhood 

 of Montego Bay, and 6 to 8 miles inland. Map no. 2, area 15. 



Cylindrella gravesii C. B. A., Contrib. no. 2, p. 21 (Oct., 

 1849). PFR., Monogr., iii, p. 570; Conchyl. Cab., pi. 9, f. 6-8, 

 SowEfcBY, C. Icon., xx, pi. 3, f. 18. HENDERSON, Nautilus, 

 viii, p. 19, no. 90. 



More slender than U. ovata, and distinguished from U. 

 dubia and all of that group by its usually whitish color, and 

 the more or less trumpet-shaped aperture. Figs. 16, 17 rep- 

 resent specimens from Adelphia, St. James (Jarvis). Messrs. 

 Henderson and Simpson found it at Little River and Montego 

 Bay, in the same parish. Some specimens from the last 

 locality are tinted rose-brown. 



The young shell (pi. 64, fig. 3, Montego Bay) tapers some- 

 what more regularly than U. procera and its allies, the deci- 

 duous portion consisting of about 15 whorls, the apical 2y 2 

 smooth. 



10. U. TRANSPARENS (Pfeiffer). PI. 33, figs. 13, 18, 19. 



Shell deeply rimate, cylindric-turreted, very closely sub- 

 arcuate-striate, transparent, alabastrine ; spire noticeably at- 

 tenuate; suture hair-margined. Whorls remaining 7, moder- 

 ately convex, the last rounded, very obsoletely angulate, free 

 in front for a somewhat long distance. Aperture slightly 

 oblique, somewhat irregularly rounded, narrowed by a slight 

 columellar fold in the throat; peristome continuous, reflexed 

 throughout, somewhat flexuous, white. Length 181/2, diam. 

 61/2 ; aperture with peristome 5 mm. long, 514 wide (Pfr.) . 



Jamaica (Bland). Mt. Diablo (Jarvis, Henderson). Map 

 no. 2, area 6. 



C. transparens PFR., Malak. Blatt., xiii, 1866, p. 87; 

 Monogr., vi, p. 369 ; Novit. Conch., p. 432, pi. 97, f . 3, 4. 



Pfeiffer's original description is given above, and his fig- 

 ures are copied, pi. 33, figs. 18, 19. They indicate a shell 

 related to U. gravesii and U. procera. 



The Mt. Diablo shells referred to transparens (pi. 33, fig. 

 13) have narrower strias than U. gravesii, the intervals double 



