BROWN : LAND AND FRESHWATER SHELLS OF BARBADOS. 269 



B. fraterculus Fc^russac. — Guadeloupe ? Porto Rico, Antigua, St. 

 Kitts, St. John's, St. Croix, St. Thomas, Trinidad, Barbados (Bland). 

 Not yet met with. 



B. exilis Gmelin.— St. Vincent, Guadeloupe, St. Thomas, Porto 

 Rico, Barbados, Dominica, Cayenne; the author has also received 

 it from Antigua. One of the commonest shells in the island, but 

 varying considerably in markings and colouring, five distinct forms 

 have been received : — 



(a) Horn colour, bandless, the most common. 



(/^) Dark brown colour, bandless. 



{c) Light brown colour, slightly banded. 



(d) Dark brown colour, heavily banded. 



(e) Horn colour, with single brown band. 



Only one specimen of this last has been met with, in a gully close 

 to Codrington House, St. Michael's. It was not full grown, but the 

 markings are quite distinct from the others. 



Orthalicus zebra Miiller. — Trinidad, St. Vincent, Carriacou, &c.^ 

 Jamaica, Cayenne. Found around Bridgetown, but not in the outlying 

 districts, frequenting Lime and Frangipani trees and the Cabbage 

 Palms in the Belleville district. The markings vary considerably and 

 lose nearly all the brilliancy in the older shells. The species found 

 here seems identical with that from Carriacou, Grenada, but the Trini- 

 dad species differs in the markings. Pilsbry^ has placed the West Indian, 

 Floridan, and Mexican species which ought to be called Orthalicus, 

 in the genus Oxystyla, and Mr. Chas. T. Simpson thinks this species 

 seems to be rather O. princeps Brod., than O. nndata or O. zebra, and 

 states that it is apparently identical with Mexican and Central 

 American shells in the Smithsonian Institution collection, and with 

 shells collected by himself at the Bay Islands, Honduras. 



Pineria viequensis Pfeiffer. — Only found in Vieque (not pro- 

 vince of Porto Rico) and Barbados. Found in numbers along the 

 St. Philip's coast on the coral rocks bordering the sea. 



Ennea (Huttonella) bicolor Huiton. — Probably introduced 

 from East Indies where it is widely distributed, to St. Thomas and 

 Trinidad (Bland), Grenada (Edgir A. Smith), St. Lucia (Gibbons), 

 and specimens have recently been received alive from Dominica. 

 Found in gardens in Bridgetown, Belle Plantation Wood, and St. 

 Philip's under dead leaves and stones. 



Caecilianella minutissima Guppy. — Trinidad, St. Vincent. This 

 minute shell was first found in Porter's Wood, St. James', and hns 

 since been met with in other parts of the island along with C. aperfa. 



1 Froc. Mcilac. Soc, vol. i, p. 306, 321, 1895. 



2 Tryon, " Man. Conch. Helicidfe," vol. 12, p. 105, 1899. 



