266 STUDIES ON AUSTRALIAN MOLLUSCA, xi., 



It has already been observed that Tate's species is to be trans- 

 ferred to Poromya, in which genus the specific name is preoccupied 

 by Nyst.* As the species appears distinct from any I found in the 

 British or other Museums, it now becomes necessary to impose on it 

 a new name. 



Thracia cultrata Gould. 



Thracia cultrata Gould, Proc. Boston Soc. Nat. Hist. viii.. 1861, 

 p. 14. 



This un figured shell is said to have been taken by W. Stimpson, 

 in 8-15 fathoms, in Port Jackson. I searched in vain for an 

 example of this species in various museums. It is likely that all 

 the specimens gathered were lost in 1871, when Dr. Stimpson's col- 

 lection, numbering about 8,000 specimens of marine shells, was 

 destroyed in the great fire of Chicago. It is recommended that the 

 name be abandoned as unrecognisable. 



C(ELODON AVERSUS, n.Sp. 



Ccelodon elongatus Hedley (non Carpenter), These Proceedings, 

 xxxi., 1006, p. 473, PI. xxxvii., fig. 16. 



From Mast Head Island, I described and figured a shell, which 

 I supposed to be Ccdodon elongatus Carpenter, under the impres- 

 sion that no illustration of that species had appeared. This iden- 

 tification was doubted by Dr. H. Lynge,f who also pointed out that 

 Carpenter's shell had been figured by Sowerby as Pandora elon- 

 gata. \ 



I can only agree with my critic, that the shell from Mast Head is 

 quite unlike C. elongatus. The name of C. aversus is accordingly 

 now proposed for it. 



MyrTuEa venusta Philippi. 



(Plate xvi., fig. 10.) 

 Lucina venusta Philippi, Abbild. Beschr. ii., March, 1847, p. 206, 

 pi. 1, f. 2. 



* Hedley, Rec. Aust. Mus. vi. 1907, p. 302. 



t Lynge, D. Kgl. Danske Vidensk. Selsk. Skrifter, 7, 1. v., 1909, p.287. 



Z Sowerby, Conch. Icon. xix. 1874, Pandora, PI. i., f.4. 



