647 
660 
661 
662 
663 
664 
665 
VARIETIES OF NASSA. 49 
A perfect specimen and fully matured ; is much broader, lip 
much more expanded, than the figure in Reeve; the colu- 
mella is almost smooth, callous covering about one-third of the 
body-whorl ; operculum serrated ; the only mature shell I 
have seen. China. 
Tall and narrow ; is very closely allied to the tall varieties of 
N. sequijorensis, A. Ad. 
Small, with only one varix, passing into the N. celata, A. Ad. 
Crenulata, Brug. Ency, Meth., pl. 394, f. 6, is certainly a 
strongly-ribbed and closely-grooved variety of N. arcularia, 
Linn. 
Crenulata, Kien., pl. 14, f. 49, is an ash-coloured shell with 
two pale bands, ribbed and grooved, lip without spines, and 
is allied to the N. sequijorensis, A. Ad. 
A broader variety, Smith. P.Z.S., 1879, p. 120, pl. 20, f. 48. 
Japan. 
Very finely cancellated, lip spiny, callous thin, spreading. 
Yokohama. 
Of a dark, rufous-brown colour, cancellation rather coarse, shell 
broad and short, lip without spines, callous thick, not 
spreading. Japan. 
Crenulata, Kien, pl. 23, f. 90, is certainly a variety of 
N. nodifera, Powis. 
Crenulata, Chenu. Man. de Conch., p. 163, f. 169, is another 
variety of the same shell. 
57 Crenulata, Reeve, pl. 1, f. 2, is allied to N. sequijorensis, 
A. Ad. Philippines. 
Sequijorensis, A. Ad. P.Z.S., 1851, p.97. Reeve, pl. 8, f. 53. 
Sequijor, Philippines. 
With very close cancellation, of an ash-grey colour, lip spiny 
at the base. Japan. 
White, with rufous bands, sutural canal wide open, passing 
into varieties of N. scalaris, A. Ad. 
Intermediate between N. sequijorensis, A. Ad., and N. ravida, 
A, Ad. 
Shell broader, __,, a and N. cremata, Hinds. 
With distant ribs and only one or two transverse grooves. 
Very elongated, resembling some of the varieties of N. trifasciata, 
Gmel. 
Ribs distant, colour red-brown, passing into the varieties of 
N, nodifera, Powis, 
