BY C. HEDLEY. 335 



Leucotina pura A. Adams. 



Monoptygma pura A. Adams, Thes. Conch., ii., 1854, p.820, 

 PL 172, fig.23. 



Leucotina esther Angas, Proc. Zool. Soc, 1867, p.l 1 6, PI. xiii., 

 fig.31. 



In the British Museum, is a single shell, marked type, and 

 labelled "pura A. Ad., Thes. ii., p.820, pl.172, fig.23." This is 

 said to be from New Zealand, and is specifically identical with 

 two marked type, and labelled " Leucotina esther Angas, Port 

 Jackson, Pres. G. F. Angas, 70/10/26." 



In general appearance this is like one in the British Museum, 

 marked type of Monoptygma concinna, from Moreton Bay. In 

 comparison with that, L. esther is shorter, broader, and has finer 

 sculpture. 



Leucotina amosna A. Adams. 



Monoptygma amcena A. Adams, Proc. Zool. Soc. 1851 (1853), 

 p.223; Id., Thes. Conch., ii., 1854, p.818, Pl.172, fig.21. 



Myonia amcena Cooke, Ann. Mag. N. H.(5), xvi., 1885, p. 41. 



Pyramidella amoena Dall & Bartsch, Proc. U. S. Nat. Mus., 

 xxx., 1906, p.330, PI. xix., fig.l. 



Angas has recorded* Myonia concinna from Port Jackson. 

 He presented to the British Museum the shell he thus named, 

 which is now corrected to " Monopt. amoena A. Ad., var." A 

 specimen of this species, which I obtained in Port Jackson, 

 approaches nearer to Adams' Philippine type of amoena than the 

 shell of Angas does. 



Although the record by Angas of L. concinna from this State 

 is thus shown to be incorrect, that species really inhabits our 

 coast. Forbes had previously noted f '.' Monotigma " casta from 

 Port Jackson, 6fth. Mr. E. A. Smithy explains that in this 

 genus, casta of Adams is anticipated by an earlier casta of Hinds, 

 transferred from Daphnella to Leucotina. Therefore the synony- 

 mous L. concinna comes into service. 



* Angas, Proc. Zool. Soc, 1867, p.225. 



t Forbes, Voy. Rattlesnake, ii., 1852, p.365. 



X Smith, Ann. Natal Mus., ii., 1910, p. 183. 



