48 THE MOLLUSCAN FAUNA OF TASMANTA. 
Family, Buccrnip2. 
Animal: Head flat, , large, two conical tentacles, with ocular 
tubercles at base ; op m horny, small, dentate at the edge; 
odontophore, aa igual teeth | in the series, one central and two 
ateral. Shell oval, * oblong, turriculate, notched anteriorly ; 
columella inerbeth, outidnd: with conspicuous callosity, Susie 
(alveolatum) 1, Cominella 5, Adamsia 1, Nassa 5, Eburna 
Family, Purrurrp2. 
Animal: Head small, two conical tentacles often obtuse, in 
the eatie of which are the eyes; foot short, elliptic ; operculum 
horny, with a lateral nucleus.. Shell s mooth, tubere ulous or 
spiny; columella flattened, pointed, a ance wide with an 
scaly OLIVID2. 
Animal: Almost aha the shell ; foot very large, with two 
auriculate lobes in front; opercu ulum rudimentary. Shell 
polished, th ae almost ce very short; columella often 
twisted, callou 
acilavin 2, Oliva 1. 
Fam 
saat with an enclosed mantle dnd. a strai ight si iphon. 
Family, CoLuMBELLIN2. 
Animal: Head large, flat, foot narrow, elongated, oval, siphon 
short, no operculum, Shell short with a periostraca, spire sho rt 
aperture rather narrow often toothed on the Us eahee in, a sligh 
notch at the anterior oo of agg erture. > ae 10. 
sID 
Ani e, ree with rire tentacles, eyes at , 
sign | exieni, is, tk a d salient, mantle with filaments anda =~ 
double Opirinalans aceite, Odontophore, 3-1-3. Shell solid, = 
gl pobre or or or less tubereular »aperture narrow, canal abruptly — x 
