VARIETIES OF NASSA. D9 
Without the angle. Marrat’s Pamphlet, pl. 1, f. 29. 
Similar to the last, but having prominent teeth on the lp; is 
the N. acutidentata, Smith. P.Z.S.,1879, p. 212, pl. 20, f. 46. 
Very closely ribbed and cross-grooved. 
Between N. angulifera, A. Ad., and N. unifasciata, Peace. 
Persica, v. Marten’s. 
vaponies, A. Ad.’ P.Z.8;, 1851, p.. 110.) - Japan. 
=tenuis, Smith. 
Angulata, Thorpe. China. 
Ribs smooth, interstices very finely striated. Do. 
Cochinensis, Thorpe. Do. 
Shell narrow, tall, white, transversely grooved throughout, 
punctured in the grooves. 
Echinata, A. Ad. P.Z.S., 1851, p, 101. Reeve, pl. 20, f. 131. 
Philippines. 
Var. Smith. Shorter, with fewer tubercles. 
Nodicincta, A. Ad. P.Z.S., 1851, p. 110. Galapagos Islands. 
All the whorls but the last or body-whorl closely striated. 
Ribs smooth. 
Large, ribs strongly developed; this is closely allied to the 
N. versicolor, C. B. Ad. 
With transverse reddish lines occurring at regular intervals, 
smooth and polished. 
Grooved throughout. 
Brown and white, with a few distant, reddish, transverse lines. 
Plebecula, Gould. Japan. 
A variety of the last, with numerous brown lines between the 
ribs. 
1 Having the ribs projecting at the sutures. 
Babylonica, Watson. Jibs raised into blunt tubercles at the 
sutures. Philippines. 
Columella without a callous. 
Callous not spreading. 
»» smooth. 
»» spreading, rugose. 
Outer lip strongly toothed. 
» slightly toothed. 
»  lirate. 
