OLEACINA, HAITI. 137 



impossible to recognize it but for the kindness of M. Marmin, 

 who had determined an individual in his collection from that 

 of Ferussac. It has nearly the shape and color of an olive ; 

 it is oval, pointed, smooth, polished and glossy, of a yellowish- 

 green throughout. Some flammules of obscure yellow are 

 seen on the last whorl near the aperture, of which they are 

 the former traces. The spire is pointed, conic, composed of 8 

 slightly convex whorls, of which the last is longer, or at least 

 as long, as all the others. The aperture is nearly vertical, 

 narrow, especially posteriorly. The columella is strongly 

 twisted below, at the anterior third of its length. It is ap- 

 pressed to the base and becomes white. The right lip is thin 

 and sinuous. It is supposed that this species comes from the 

 Antilles" (Desk.). 



The type figure measures: length 27, diam. 10.5 mm. 



Achatina oleacea DESK., Encycl. Meth., ii, p. 11 (1830) ; 

 Magasin de Zoologie, Mollusques, p. 3, pi. 3, f. 1, 2 (1830). 

 Helix (Cochlicopa) oleacea FERUSSAC, Tabl. Syst., p. 50, no. 

 360 (nude name). 



Deshayes' original description is translated above, and his 

 original figures are copied on pi. 33, figs. 10, 11. The specimen 

 he selected for the figure is intermediate in size between the 

 extremes, 18 to 30 mm., mentioned in his description, the 

 figure measuring 27 mm. long. It is likely that the measure- 

 ments 18 to 30 mm. include more than one species or variety ; 

 but the specimen figured by Deshayes must be considered his 

 type. The general shape of the shell and the narrow aper- 

 ture, in this figure, as well as the yellowish green color, are 

 strongly suggestive of the Haitian 0. mulleri; yet that species, 

 of which I have seen a considerable number of examples, is 

 not known to attain nearly to the size of Deshayes' figured 

 type. The white columella and the obscure yellow growth- 

 arrest streaks behind the lip are also suggestive of the Haitian 

 shell. In the Cuban form the streaks are more reddish, the 

 columella hardly noticeably white, and the general shape is 

 more cylindric, the spire less strictly conic, etc. 



It is therefore quite possible that the type of 0. oleacea is 

 a Haitian shell closely related to 0. mulleri, but larger, with 



