14- PSEU DOST ROME US. 



B. ANNULATA, Lam. PI. 5, fig. 74. 



Yellowish white, columella white. Length, 1'5 inches. 



Narrower than the preceding species, and covered with 

 revolving- stria?; yet it may be only a variety of it. 



B. ARMATA, Gray. PI. 6, figs. 82, 83. 



Yellowish white, with two broad, faint, chestnut bands. 



Length, 1-2 inches. 



Rio NcgrOj Patinjonitt. 



This species is considered by d'Orbigny merely a spinose 

 variety of B. cochlidium. 



Submenus Pseudostrombus, Klein. 



Leiodomus Swainson, cannot be distinguished as a subgenus, 

 the distinctive characters gradually merging in those of Ftwttdo- 



B. TURRITA, Gray. PL 6, fig. 84. 



Shell smooth, very finely plaited at the sutures; white, some- 

 times obscurely brown-flamed on the lower part of the body 



whorl. Length, 1-25 1 '5 inches. 



Habitat unknown. 



Very like the next species, but is somewhat longer and 

 narrower, with more convex whorls ; the plications shorter, only 

 occupying a small portion of even the spiral whorls, fainter, not 

 decussated by revolving striae. 



B. MELANOJDES, Desh. PL 6, figs. 85, 86. 



Upper whorls crossed by well-marked plications, body whorl 

 sometimes only plicate on the upper part; revolving stria' 

 decussate the plications of the spire. Color, yellowish white. 

 sometimes with a chocolate-colored narrow band near the sutures 

 and a broader one at the base, or whole surface clouded or covered 

 with chocolate. Length, 1-1*25 inches. 



Cochin China ; Mozambique. 



B. Mctzambiceii&ix, E. A. Smith (fig. 86), is described from a 

 well-grown specimen of the dark-colored variety. 



B. GRANULOSA, Lam. PL 6, fig. 91. 



Chestnut or chocolate, sometimes obscurely banded on the 

 periphery, with a double row of bead-like nodules revolving 

 below the suture. Length, 1 inch. 



Gabon Coast, W. Africa. 



