344 



A REVISED CENSUS OF THE MARINE MOLLUSC A 

 OF TASMANIA. 



By Professor Ralph Tate and W. L. May. 

 (Plates xxiii.-xxvii.) 



Contents. 

 i.— Introduction. 



ii. — A Sketch of the History of Marine Conchology in Tasmania. 

 iii. — Systematic List of Species. 



iv. — Catalogue of Synonyms applied to Tasmanian Species with the Corres- 

 ponding names adopted. 

 (1). Cephalopoda. 

 (2). Gasteropoda. 

 (3). Laviellibranchiata. 

 (4). Palliobranchiata. 

 V. — Critical Kemarks on some Species and Diagnoses of New Species. 



i. — Introduction. 

 Until 1878, the date of publication of the Rev. Tenison- 

 Woods's " Census," (Proceedings Royal Society of -Tasmania for 

 1877), nothing whatever had been done towards an enumeration 

 of the Mollusca of Tasmanian waters. In that Census, which is 

 the basis of the present essay, the author collated all the species 

 which had been attributed to Tasmania and included a very large 

 number of new species diagnosed by him in earlier communica- 

 tions to the same Society. Messrs. Petterd and Beddome at later 

 dates separately contributed descriptions of new Tasmanian 

 Mollusca. All the aforesaid new species remain unfigured, 

 except a few which were very indifferently illustrated in Tryon's 

 " Manual of Conchology." 



Editorial Notr.— Proofs of pages 1-64 of this paper were forwarded to Prof. Tate 

 during tlie last week of August and the first week of September ; but in consequence 

 of his illness, which terminated fatally on 20th September, only pages 1-24 were revised 

 and returned by him. Under these circumstances the Editor acknowledges valuable 

 assistance in seeing the Revised Census through the press, received from Mr. C. Hedley. 



It seems desirable to point out that the Authors in a number of cases, but not 

 invariably, have adopted the somewhat unusual practice of quoting Journals by the 

 dates of publication without reference to those which form part of the titles. Thus 

 *' P.R.S.Tasm. 1877, p. 113" stands for P.R.S.Tasm., 1876, p. 113 [1877] ; and (p. 392) 

 " P.L.S.N.S.W. 1894, p. 173, 1. 14, f. 11 ; 1895, p. 695 " for P.L.S.N.S.W. 1894, p. 173, t. 14, 

 f. il ; p. 695 [1894-95]— (Ocfo&er 15th, J901). 



