VARIETIES OF NASSA. 47 
Showing a close affinity with the varieties of N. thersites, Brug. 
Very short and dumpy. 
Spire elongated, acute, semicostate ; a very curious shell. 
Shell rather strongly ribbed, with numerous transverse hair- 
like grooves. 
In this variety the upper whorls are closely cancellated, and 
the cancellation extends into at least one-half of the body- 
whorl, shell young. 
Dark brown with a central white band. 
Is small, with a rufous stain on the outer edge of the callous. 
ee 
Reticulata, Linn. Reeve, pl. 9, f. 57b. Seas of Europe. 
Ribs more distant and fewer, f. 57a. 
i Pa Kiener, pl. 23, f. 91. 
Mediterranean. 
Closely resembling the small forms of N. tenia, Gmel. Malta. 
Dark red-brown, nearly black, ribs broad and irregular, trans- 
versely grooved. 
Dark red-brown, ribs granular, interstices deeply sulcate, 
callous yellow. 
Dark red-brown, ribs smooth, interstices smooth, not grooved 
below the sutures ; allied to the N. nodifera, Powis. 
Variety nitida, Jeffreys, Brit. Conch. Britain. 
Smaller than the last, ribs wider apart, banded with voilet, 
brown and white. 
Narrow, conical, yellowish white. 
Pale yellowish-white, with a dark-brown band below the 
sutures. 
Broad, ribs very few, distant, body-whorl pale ash-grey, with 
interrupted brown transverse bands, having a strong varix. 
Shell with the spire short and the body-whorl large, passing 
into the N. marginulata, Lam. 
A small elongated form, resembling in both colour and marking 
the N. glaberrima, Chem. 
2 Very long and narrow, white, indistinctly violet banded below 
the sutures. 
Ribbed and cancellated, resembling the N. margaritifera, 
Reeve (not Dunker. !) 
