A manual of the Mollusca, or, A rudimentary treatise of recent and fossil shells . ral inside. Animal with long ciliated tentacles; head-lobes pectinated, wanting in theminute sp.; neck-lobes fringed; sides ornamented with 3 cirri; branchialplume long, partly free; foot rounded in front, pointed behind; its sidesmoved alternately in walking ; lingual teeth even-edged ; laterals 5, hooked,denticulated; uncini about 70, gradually diminishing outwards, hooked anddenticulated. Distr., 25 sp. Australia, large sp. India, PMippines ; small sp. ,Brit., W. Indies, very small sp. Fossil, 70 sp. D
A manual of the Mollusca, or, A rudimentary treatise of recent and fossil shells . ral inside. Animal with long ciliated tentacles; head-lobes pectinated, wanting in theminute sp.; neck-lobes fringed; sides ornamented with 3 cirri; branchialplume long, partly free; foot rounded in front, pointed behind; its sidesmoved alternately in walking ; lingual teeth even-edged ; laterals 5, hooked,denticulated; uncini about 70, gradually diminishing outwards, hooked anddenticulated. Distr., 25 sp. Australia, large sp. India, PMippines ; small sp. ,Brit., W. Indies, very small sp. Fossil, 70 sp. Devonian ?—. Europe. The similai-ity of the existing Australian fauna, to that of the Europeanoolites, strengthens the probability that some, at least, of these fossil shellsare rightly referred to Phasianella. Imperator, , I. imperialis, PI. 10, fig. 4. Sijn., calcar. Shell trochiform, thick, with a flat or concave base; whirls keeled orstellated: apertm-e angulated outside, briUiantly pearly ; operc. , 20 sp. ? S. Africa, India, Australia, New Fig. 87.*Tkochus, , troclws, a hoop. Syn., cardinalia, tegula, and Hvona, Gray. Inftmdibulum, Montf. Ch!o-rofitoma, Sw. Trochiscus, Sby. Monilea, Sw. Types, T. niloticus. PI. X., fig. 5. T. zizyphinus. Fig. 87. * Fig. 87. Trochu! zizyphinus, L., Pe5T\-ell Bay, Kent,
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmollusks, bookyear185
