a synonem. He further makes Cytherea Kingii (ex parte) of 

 Sowerby, as given on p. G3S of the Thes. Conch., a synonem of 

 Modesta. The liabitat of this Modesta, alias Philippi, and alias 

 (ex parte) Kingii, is from the Philippine Islands. Deshayes 

 appears to liave made this change in Philippi's species because 

 Sowerby had previously named a Cytherea modesta which Des- 

 hayes placed in the .same genus as he placed Philippi's Cytherea 

 modesta. 



Sowerby 's Cytherea modesta is recorded in the Proceedings of 

 the Zoological Society of London, for 1835, p. 47, "Shells ex- 

 hibited and accompanied by cliaracters," iiy Broderip and J. B. 

 Sowerby, not figured then, but Deshayes says Sowerby's figure 

 p. 136, fig. 184, represents this Modesta of Sowerby, and is des- 

 cribed on p. 627 of the Thes. Conch. Vol. ii., p. 1855. 



Neither Deshayes' Dione Philippi, Cytherea modesta Philippi, 

 nor his Dione modesta, Sowerby, appear to have Ijeen procured 

 during the cruise of the Challenger. 



Some of our Australian collectors have refrained from calling 

 the Bass Straits species in question Lamarckii, because a Venus 

 was described and figured by Reeve and Sowerby in their Mono- 

 graphs on the genus as Venus Lamarckii, Gray, and catalogued 

 as such by Deshayes in the British Museum Catalogue of the 

 Conchifera, 1853, Part I., p. 110, which is found abundantly on 

 the north-east coast and on the northern shores of Australia ; 

 several authorities to whom this north-east and northern species 

 was referred, returned the specimens back so named. It was 

 certainly also sent named to me as Vemts Lamarckii, Gray, by 

 Angas. I refer to what is now definitely determined by Pfeiffer 

 in his Monograph on the genus Venns, in Vol. xi., of Martini 

 and Chemnitz Conchilien Cabinet, 1869, as Venus Lameflaris, 

 Schumacher, and by Mr. Edgar A. Smith in his Report on the 

 Lamellibranchilata of the ChaUenyer Expedition, Vol. xili., 

 Zoologie, 1885, p. 121, as Venus- Antiijona-Lamellaris, Schumacher. 

 Hanley is generally credited as the author of the name Lamarckii 

 because he catalogued it as Venus Lamarckii in his Illustrated 

 and Descriptive Catalogue of recent Bivalve Shells, Part I. of 

 letterpress, p. 113, published in 1843; but the name Lamarckii 

 really appears, according to Mr. E. A. Smith's able report on the 

 Challenger Expedition, to have been given to this species by 

 Gray in the Analyst, Vol. viii., p.' 308, as Dosinia Lamarckii. 

 Deshayes also in his Catalogue mentioned of the British Museum 

 Bivalves, gives the reference as Dosinia Lamarckii, Gray, in the 

 Analyst, Vol. viii., p. 308, 1838. 



If the Cytherea were only to be acknowledged as a Subgenus, 

 as Romer makes it in his Monograph der Mollusken-Gatlung 

 Venus, Band I., 1869, then there might be some doubt or difli- 



