106 OXYSTYLA, ANTILLES. 



Typical rxDATA. PI. '27, figs. 16, 17, 18. 



The terms of Bruguiere's description agree best with specimens 

 before me from Trinidad, collected by Mr. Gtt/ipy, from the Bahamas, 

 /ii'ndat/ and White, and from St. Thomas, St rebel. The ground-color 

 is pale brownish-yellow or white ; the stripes are purplish-brown, 

 rnther wide in the median ret/ion of the last whorl, and mostly forked 

 above, and on the penultimate whorl often spread into blotches, as in 

 0. princeps ; they do not continue to the base, there being a lighter 

 linsiil area; blackish-brown varices narrow, two or three on the last 

 whorl ; the three hands may be seen on some part of the last whorl, 

 though often not distinct ; but on the spire the band above the mid- 

 dle is usually conspicuous, though narrow, and the edge of another 

 may often be seen in the suture. The sum mil of the first whorl is 

 dark or blackish-brown. Columella subvertical, the while part nearly 

 Straight. Parietal wall rich chestnut-brown. Surface often rather 

 coarsely and shallowly plicatulate. 



Alt. ;">!, diam. 31, longest axis of aperture 30 mill. 



Alt. 49, diam. 26.V, longest axis of aperture 27 mill. 



Trinidad (R. L. Guppy); Union Island, Grenadines (C. D. Stew- 

 art); Cariacou, Grenadines (Sir R. Rawson); St. Thomas (Strebel); 

 Andros (White) and New Providence (Bendall), Jia/iat/tas. 



imia nndalns Biu<;., Encycl. Meth. i, p. 320 (171)2) Ortha- 

 n,i(lntt<s BLAND, Amer. Journ. of Conch, iv, 18(18, p. 18,'). 

 (Ji pry, Journ. of Conchology vii, 1893, p. 217 O. ferussaci- 

 iinilutiis STKI.IUCL, Beitr. Mex. Land- und Siisswasser-Conchylien v, 

 p. 24, pi. 2, fig. 10. Jin/linns zebra Grrrv, Ann. Mag. Nat. Hist. 

 (3), xvii, 1H<>6, p. 48; Proc. Scient. Asso., Trinidad, I860, p. 16. 

 Ort/i'i/iriis zebra CROSSE, Journ. de Conchy!., 1890, p. 41 (peculiar 

 synonymy). E. A. SMITH, Journ. of Conchology viii, 189C>, p. 240. 

 Arhuliim ini<liilut(i GUILIMM;, Zoological Journal iii, p. . r >31 

 (1828?). 



Our specimen from Union Ishuxl, Grenadines, is before me, agree- 

 ing in all respects with the Trinidad form. .Mr. Smith also reports 

 it from the adjacent Cariacou Island, though exactly what form 

 occurred there I do not know (0. zebra, Proc. Malac. Soc. Loud, i, 

 p. 321). As I'nion Island was the locality of Guild ing's Adi. nndu- 

 latn,i\.\\(\ the description tallies well with the present form, that name 

 is in all probability a synonym. 



.Mr. K. A. Smith also reports this species from St. Vincent, on the 



