THE MOLLUSCAN FAUNA OF TASMANIA. 49 
ee Naticrp®. 
almost r ound, with an umbilicus or a eal sity. Olbutighans 
short, 3- L3, central quadrate, acs based. 
atica 4, Ruma 2, Sigaretus 
Family, wicca 
nimal, cylindric, foot short, sub-quadrangular, head short 
Situs flattened, tentacles conical, eyes at the external base. 
Operculum horny, 1 or 13 whorled, nucleus central. itis. nts 
ee taemitha 
Animal: Head saree her guineas small, a rather long siphon 
between, mouth at t , operculum oval, horny. Shell very 
long, conical, with a notch i in the apertu 
Terebra 4 (though others are desetbed): 
Family, PyraMIpELLip2. 
This is a rather heterogeneous aaa as will be seen by the 
genera included in it by various authors. M. Chenu makes it 
receive such genera as Ringicula. Messrs. Adams’s definition 
is less than that of ae phir n Je “tea who caine Stylifer. But 
following his arrangement we shou ave the Families 
Pyramidellide with Turbonilla 4, Odostomia 2, Aclis 1, Fam. 
Eulimide, Eulima 5, Elusa 1, Syrnola 2, Stylifera 1, Stylopti 
Cingulina 1,Acus 1. All small shells, agreeing generally 1 in their 
terriculate habit and entire peers with or without plaits on the 
columella. 
Family, CERITHIOPSID. 
Animal: Head short, broad, tentacles subulate obtuse, eyes at 
ei pane with retractile probocis, mantle not reflected with 
rudimentary siphonal fold, Resabsneene horny, on a well developed 
be. Shell turreted, many-whorled, spirally keeled. Odon- 
tophore like Naticide. Cctithiopaia 8 2. 
amily Soranrpx, doubtfully represented, no species 
determined. 
Family, Conrp2. 
Animal: Head with produced tubular vel, unre subulate, 
eyes on tubercles at outer side, mantle sed, an elongate 
‘Spnone at fore part, foot simple, iaieded, rime conspicuous 
© This? This name is Klein’s, and before Linneus, but we may adopt it as it is 
shorter and not. much different from Lamarck’s. 
iy oO. bot, ; Garde 
