: 



BULLIA. 11 



in various directions'; it is caught by baiting linos with. bits of 

 flesh. The genus is oriental, mostly So. African in distribution, 

 and reminds one of the Arctic genus Volutharpa (vol. iii, ]>. 107). 



II. and A. Adams separate a genus Pseudostrombus on account 

 of the want of the sntnral band of enamel, and the foot of the 

 animal being simple instead of bifid behind; but as in Nassa, 

 the difference in the animal is not certainly to be regarded as 

 generic; and as to the shell, there is no sharp line of division 

 between species with and those without enamelled sutures the 

 globose species generally showing the most of it and the 

 narrower ones less. Nevertheless it will be convenient to group 

 together the narrow species as a subgenus. 



. In Woodward's ''Manual of the Mollusca," 1lu.ll in is erro- 

 neously made a synonym of Anaida.r, Roissy, a fossil form of 



ncillaria. 



Typical. 



B. L^EVISSIMA, Gmel. PI. 5, iig. 50. 



Yellowish white to brownish red ; smooth and polished. 



Length, 2'5-3 inches. 



(J<tpe of Good Hope. 

 1>. WLOBULOSA, Kiener. PI. 5, fig. 60. 



Spire shorter, whorls slightly contracted above the middle, 

 suture but slightly, or not at all enamelled. Length, 2*5 inches. 



ILilntat unknoirn. 



I doubt whether this is more than a variety of J>. 



B. DEFORM is, King. PI. 5, fig. (U. 



Yellowish brown, obscurely brown banded. 

 Length, 22-33 mill. 



Mouth of the Rio de la Plata; Rio Negro, South America. 



15. TENUIS, PI. 5, fig. K2. 



Thin, yellowish white, one or two revolving grooves just 

 below the suture and a number on the lower half of the body 



whorl. Length, 1*75 inches. 



JLiliita t unku otn, . 

 B. CALLOSA, Gray. PI. 5. tig. <>8. 



Yellowish gray, sutuml and columellar callosities generally 



chestnut-brown. Length, 1*25-1 *5 inches. 



Habitat unknown. 



