164 OXYSTYLA. 



ratus Rve., but differs from it in the absence of the raised striae which 

 cover that shell and the peculiar crenulation beneath its sutures." 



P. FLORI Jousseaume. 



Shell imperforate, oblong, solid, ornamented with vanishing ob- 

 lique striae, somewhat shining ; white painted with flammules and 

 streaks of violaceous-brown and black ; spire long-conic, a little ob- 

 tuse suture impressed, crenulated ; whorls 7, slightly convex, rather 

 regularly increasing. Aperture nearly vertical, truncate-oval, with 

 a pearly silver-brown luster inside ; peristome somewhat thickened, 

 narrowly expanded, grayish-lilac ; columella twisted, whitish within. 

 Alt. 85, diam. 39 mill.; aperture 39 mill, long, greater diam. 30, 

 lesser 22 mill. (Jams.). Machala, Equador (L.-M. Flor.). 



Dryptusflori Jouss., Le Naturaliste, xix, p. 265, Nov., 1897. 



This species, which I have seen in certain collections under the 

 name B. integer, is distinguished at once by the more slender form, 

 absence of revolving striae, the brilliance and nearly effaced longitud- 

 inal striad of the surface, and by the stronger and shorter torsion of 

 the columellar margin, and often by a purple-black zone at the base 

 of the last whorl (Jouss.). 



Genus OXYSTYLA Schliiter. 

 O. PRINCEPS var. ELEGANS Rolle. PI. 24, fig. 12. 



Vol. xii, p. 117. Von Martens has given a figure of Rolle's type, 

 now in the Berlin Museum (Biol. Centr. Amer., Moll., p. 629, pi. 

 44, f. 15). He considers it " only an attenuated variety of 0. prin- 

 ceps." 



O. ZONIFERA var. NOBILIS Rolle. PI. 24, fig. 14. 



Vol. xii, p. 124. " An attenuated variety of 0. zoniferus" (Mar- 

 tens, t. c., p. 629, pi. 44, f. 16). Tjpe in Berlin Museum. 



O. PULCHELLA var. PROTOTYPUS Pils. Vol. xii, p. 137. 



Specimens from Corumba, prov. Matto Grosso, Brazil, are in coll. 

 C. W. Johnson. An adult shell from Bahia, sent by Dr. H. von 

 Ihering, measures length 40, diam. 25 mill. 



O. MARACAIBENSIS (Pfr.). PI. 26, fig. 47. 



Vol. xii, p. 137. At Bonda, a place 8 miles S.-E. of Santa Marta, 





