700 AUSTRALIAN AND TASMANIAN MOLLUSCA. 



1892. Naranio rubiginosa, Tate, Proc. Roy. Soc. South Australia, 



p. 134. 



1893. Naranio rubiginosa, Adcock, " A Hand List of the Aquatic 



Mollusca of 8. A." p. 12, No. 66. 



Hab. —Watson's Bay, Port Jackson, dredged in 4 fathoms 

 enclosed in a nodule of clay (G. French Ancjas); off Yaucluse 

 Bay, Port Jackson, 12 fathoms, muddy bottom, fine living speci- 

 mens found in hard clayey mud, two specimens got crushed with 

 the dredge {J. Brazier, 1866): Aldinga Bay, very rare and small, 

 in shell sand {Professor R. Tat'C); dredged in Hardwicke Bay, 

 Spencer Gulf, S.A., from eight to ten fathoms, four perfect shells, 

 and five single valves (Dr. Verco): dredged off Long Bay and 

 Brown's River, in about 7 fathoms {W. F. Petterd): Frederick 

 Henry Bay, South Tasmania {Miss Lodder). 



The Tasmanian specimen submitted to me by Miss Lodder was 

 described by Mr. Petterd as Clemeniia I'asmanica; it is identical 

 with Choristodon rubiyinosum, A. Ad. and Angas. Last year 

 (1893) Miss. Lodder sent me a bivalve to determine for her; it 

 also was C. riibiginositm, Ad. and Ang. At the time I did not 

 make a note of the locality sent with the specimen. The southern 

 specimens do not differ from the Port Jackson ones; the colour is 

 the same, rayed with brown and purple at the umbones. Of the 

 four specimens I obtained in 1866, one was sent to Mr. Angas 

 with a lot of other Mollusca, but evidently overlooked by him. 



The Genus Choristodon was founded by Jonas, 1844; H. and 

 A. Adams, 1857; No,ranio, Gray, 1853, is a synonym. 



