196 STUDIES OX AUSTRALIAN MOLLUSCA, VIII., 



PsAMMOBiA LESSONi, Blainville. 



So far as I can ascertain, this is the proper name for the 

 Sydney shell reported as Gari malaccana, Reeve, by Angas.* 

 The species was figured by Reeve, f who referred in his careless 

 way to Blainville's name as a manuscript one. Blainville, how- 

 ever, fully described the species t from specimens collected by 

 Lesson in the Moluccas. 



Fischer noted G. lessoni from He Art, New Caledonia.^ It 

 occurs along the whole coast of Queensland. In our latitude this 

 straggler from the tropics is smaller, and less brightly coloured 

 than northern examples. 



DiPLODONTA ZELANDiCA, Gray. 



Jointly with Messrs. H. Suter and W. L. May, who discussed 

 the matter with me, I can now announce that D. tasmanica, Ten. 

 Woods, is an absolute synonym of the above name. The species 

 has not hitherto been recognised from this State. Its northern 

 limit is indicated to me by a gigantic example from Port Stephens 

 measuring 34 mm. in length and 30 mm. in height. 



It was first described as Lucina zelandica by Gray. || His type 

 was afterwards figured in the 'Zoology of the Erebus and 

 Terror' (1874, Moll., pl.iii., f. 8). 



Under the name of Lucina inculta it was again figured and 

 described by Goulds from New Zealand. 



Thirdly, it was named Dij^lodonta tasmanica by Tenison 

 Woods.** A Tasmanian specimen was figured in these Proceed- 

 ings (Yol. xxviii., pi. xxvii., f. 102). 



* Proc. Zool. Soc. 1867, p. 917. 

 + Conch. Icon, x., Psammobia, 1856, pi. ii., f. 8. 

 + Diet. Sci. Nat. xlii. 1826, p. 480. 

 § Journ. de Conch, vii. 1859, p. 836. 

 II Yate, 'Account of New Zealand.' Appendix. 1835, p. 309. Both the 

 first and second editions of this work are dated 1835. 



^ Am. Expl. Exped. Moll. xii. 1852, p. 412, pi. xxxvi., f. 524. 

 ** Proc. Koy. Soc. Tas. 1876, p. 158. 



