130 OLEACINA, HAITI. 



what worn. The suture is somewhat uneven, but is not 

 crenulated by the striae. The aperture is very long and nar- 

 row, outer lip acute, pale near the edge, straightened in the 

 middle. Columella short, quite concave, abruptly truncate. 

 Length 49.5, diam. 21, length of aperture 36 mm. ; whorls 7%. 



Haiti: Miragoane (H. Rolle). 



Bulla voluta, testa cylindracea l&vis, ex oleacino, etc., 

 CHEMNITZ, Conchyl. Cab., ix, pt. 2, p. 16, pi. 117, f. 1009, 

 1010 (1786). Bulla voluta GMEL., Syst. Nat. (13), p. 3433, 

 no. 40, (1790), based on above reference. Achatina voluta 

 Chemn., PFR., Monogr. Hel. Viv., ii, p. 279; Conchyl. Cab., 

 p. 297, pi. 7, f. 4, 5. REEVE, C. Icon., vii, fig. 55. Oleacina 

 voluta Chemn., PFR., Nomencl. Hel. Viv., p. 8. TRYON, Man- 

 ual, i, p. 22. Glandina voluta Chemn., CROSSE, Journ. de 

 Conchyl., 1891, p. 99, pi. 1, f. l.Bulimus glans BRUG., En- 

 cycl. Meth., p. 365, no. Ill (1792). Glandina olivacea SCHU- 

 MACKER, Essai d'un nouv. Syst. test. Vers, p. 202 (1817), 

 based on Bulla voluta Chemn. Oleacina volutata BOLTEN, 

 Museum Boltenianum, p. 110, no. 1411, 1798, based on Bulla 

 voluta Gmel. and Chemnitz. 



This species is the type of the genus Oleacina. Like vari- 

 ous other Haitian land shells, it is an isolated form without 

 near relatives. The striate surface and dark color are fea- 

 tures not found in other Antillean Oleacinas; yet the gen- 

 eral aspect of the shell, and particularly the shape of the 

 aperture, are so different from any of the mainland Euglan- 

 dinas that I do not believe that 0. voluta is congeneric with 

 the Mexican species. 



The figures on pi. 31 represent a shell from Miragoane in 

 coll. T. H. Aldrich. It is probably not quite mature. The 

 various specimens I have seen and the published figures of 

 0. voluta and 0. flexuosa show these forms to vary widely in 

 size and contour, and it seems likely that all belong to one 

 species, represented perhaps by a number of local races. 



la. 0. VOLUTA var. FLEXUOSA (Pfeiffer). PI. 31, fig. 14. 



See vol. I, p. 33, pi. 5, fig. 68, copied from Pfeiffer's type 

 figure. The type measured: length 53, diam. 20, length of 



