BRACHYPODELLA, JAMAICAN. 107 



Length 30, diam. 4.5 mm., whorls 16 (entire). 



Length 21, diam. 4.5 mm., whorls remaining 6%. 



Jamaica: Parishes of St. Catherine and St. Andrew, away 

 from the coast; Natural Bridge, Riversdale, Bogwalk, Stony 

 Hill, Mt. Diablo. 



Turbo elongatus turritus CHEMNITZ, Conchyl. Cab., ix, p. 

 23 ; Turbo elongatus albus contrarius t. c., p. 114, pi. 112, f. 

 956 (1786). Apoma elongata BECK, Index, p. 89 (1837). 

 Cylindrella elongata Chemn., PFR., Monogr., ii, p. 380; iii, 

 575 ; iv, 706 ; vi, 383 ; viii, 442 ; Conchyl. Cab., p. 57, pi. 6, f . 

 21, 22. GLOYNE, Quart. Journ. of Conch., i, p. 53 (habits, 

 food, viviparity) . SOWERBY, C. Icon., xx, pi. 4, f . 33. JOHN- 

 SON, Nautilus, v, p. 34. HENDERSON, Nautilus, viii, p. 20, no. 

 102. Helix (Cochlodina) chemnitziana Fer., Tabl. Syst., p. 

 62, no. 512, based upon Chemnitz, I. c. Pupa chemnitziana 

 GRAY, Ann. of Philos., n. ser., ix, p. 413. Clausilia c., DESH. 

 in Lain., viii, p. 217. Cylindrella chemnitziana PFR., Sym- 

 bols, ii, p. 136; Philippi, Abbild., ii, p. 49, pi. 2, f. 4. W. G. 

 BINNEY, Ann. N. Y. Acad. Sci., iii, p. 125 (teeth). Cyl. cum- 

 ingi C. B. AD., Proc. Boston Soc. N. H., 1845, p. 14. Pupa 

 gracilis SOWERBY, Genera of Shells, f . 8 ; reprinted in KEEVE, 

 Conch. Syst., pi. 170, f. 8. Brachypodella elongata Ch., PILS. 



6 VAN., Proc. A. N. S. Phila., 1898, p. 279, pi. 17, f. 4 (teeth) ; 

 pi. 18, f. 21 (axis). 



It is a larger, more robust shell than B. gracilis, with more 

 convex whorls. Range limited to a small area on the southern 

 watershed, east of the middle of the island. The name elon- 

 gata, usually applied to this species, was not used as a binomial 

 until long after Ferussac had called it chemnitziana, after 

 the competent and industrious author of the Conchylien Cab- 

 inet. The type is, or was, in the Spengler collection at Copen- 

 hagen, and was known to be from Jamaica. 



50. B. GRACILIS (Wood). PI. 2, figs. 5, 6, 7. 



Shell sinistral, slender, the upper half or more tapering, 

 generally truncate ; white ; finely rib-striate obliquely. About 



7 to 8y 2 whorls are below the plug, but several usually persist 

 above it, and rarely the spire is retained entire. Whorls but 



