50 THE MOLLUSCAN FAUNA OF TASMANTA. 
aquiferous pore is middle of under surface. Teeth subulate im 
two series, on tubular prolongation of retractile probose 
bundle of shes ‘mubidlate teeth at extremity. Shell crrvenaaif 
conical, aperture as and narrow, outer lip thin, free or notche 
near suture. Con 
Family, CYPREIDE. 
Animal, elongate, mantle very large with many cirrous fila- 
ments, almost concealing shell, tentacles ve long, eyes upon a 
protuberance siphon short. Odon ontophore with seven rows 3-1-3, 
ra plume single, no operculum. Shell in pens: like 
cowry. Cyprea 6 (one do ubtfal), Trivia 1, Birostra 1. 
Family, CaNCELLARIDE. 
Animal, with subulate tentacles united at the base, eyes at 
the outside, foot capes simple and triangular without operculum, 
spire short, whorls convex, often cancellate and ribbed, mouth 
entire, no icatanbise. rostrum rudimentary. Cancellaria 4. 
roti CERITHIID2. 
very wide apart. Odontophore long linear, 3-1-3, conical, curved. 
culum horny, subspiral. Shell turriculate, many whorls, 
notched at the anterior aperture, labrum produced. 
Cerithium 3, Lampania 1, Bittium 4, Triforis 1. 
Ng Ree 
Family, PLANAXIDS. 
Animal, with a long rostrum, subulate arene eyes sessile 
on the swollen exterior base, foot short, imple w with small 
tentacular filaments, operculum thin, honey sicievieed, odon- 
tophore 3-1-3, and in general much like te perrywinkles. 
s 
n representatives (included doubtfully), Diala 3. 
Family, Rissorp2. 
Small ie or horny shells of various forms, but more or les3_ 
turriculate. Animal with a proboscidiform head and i 
