Lo 
bo 
thersites, Brug. 
bimaculosa, A. Ad. 
leevigata, Marr. 
glabella, Sow. 
papillosa, Linn. 
(I have only seen one). 
glans, Linn. 
suturalis, Lam. 
tenia, Gmel. 
exilis, Powis. 
plicosa, D’k’r. 
trifasciata, Gmel. 
sequijorensis, A. Ad. 
OPERCULUM OF NASSA. 
Crenated. 
cerulea, Marr., almost 
plain in some of the 
specimens. 
luctuosa, A. Ad.. drab, 
with a red stripe in the 
centre. 
sculpta, Marr. 
mitralis, A. Ad. 
(only slightly). 
Plain. 
monile, Kien. This 
operculum was crenated 
when fresh, and has 
become plain by drying. 
margaritifera, Dkr., or 
very slightly crenated. 
luteola, Marr. 
dentifera, Powis. 
obsoleta, Say. 
Roissyi, Kien. 
sparta, Marr. 
Smithi, Marr. 
Miill., is 
plain, crenated or ser- 
rated. 
incrassata, 
lyrata, Marr. 
or slightly crenated. 
semistriata, Broechi, 
or slightly crenated. 
punctata, A. Ad., with 
abroad red-brown band 
across the centre. 
