Portal de Periódicos da CAPES

Description of new species of mollusca of the upper eocene beds at Table Cape

1884; Linguagem: Inglês

10.26749/yyvr4753

0080-4703

Ralph Tate,

Mollusks and Parasites Studies

Potamides pyramdiale. Locality Table Cape. R. M. Johnston (one ex.).This species differs from the living P. ebeninium in its relatively much greater width, in the nodulations being on the anterior half of the whorl instead of medial, and in its coarser spiral ornament.Potamides semicostatum-In other respects, this species resembles.P. pyramidale-Locality Table Cape, R. M. Johnston (six exs.).Torcula Murrayana.Localities Table Cape. R. M. Johnston (six exs.). Very abundant in the middle and lower beds of the River Murray Cliffs from Overland Corner to Blanchetown; also at Muddy Creek, Corio Bay, and Schnapper Point (R.T.).Turritella tristira. Locality Table Cape. R. M. Johnston (one example).Leiostraca Johnstoniana-Syn.—Eulimella subulata, Tenison-Woods (non Mont,).Localities Table Cape. R. M. Johnston. River Murray Cliffs, near Morgan, S. Aust.; Muddy Creek, Victoria. R. Tate.Cyclichna woodsii.Syn.—C. arachis. Tenison-Woods (non Quoy).The above definition is drawn from a Table Cape specimen identical with that which Tenison-Woods referred to the living species C. arachis of Quoy.Chamostrea crassa. Locality Table Cape. R. M. Johnston (two examples).Corbula ephamilla.Localities Table Cape. R. M. Johnston. Abundant in the calciferous sand-rock of the River Murray Cliffs, near Morgan, and in the contemporaneous deposits at Muddy Creek.(R.T).Lucina planatella-The fossil has no close ally among living congeners.Chione (Timoclea) hormophora.Locality Table Cape. R. M. Johnston (a left valve).Chione (Tinoclea) dimorphophylla -Length, 58; breadth, 45; thickness, 32 millimetres.Lima jeffretsiana-Syn.—Lima subauriculata, Tenison-Woods (non Mont.).Localities Table Cape. R. M. Johnston. Yorke Peninsula, Aldinga, River Murray Cliffs, Muddy Creek and Schnapper Point, Hobson's Bay. E. Tate.The majority of the new species have considerable analogy with recent congeners; but especial interest attaches to the existence in a fossil state of the genus Chamostrea, hitherto represented by a single species proper to South-eastern and Southern Australia and to Tasmania.