2Q STUDIES ON AUSTRALIAN MOLLUSCA, 



The restoration of certain of Perry's names is required by the 

 rules of zoological nomenclature. After a careful examination of 

 Perry's 'Conchology,' and guided by the references of Deshaj'es and 

 others, I have compiled the following list of those Australian 

 shells which apparently were first described by Perry : — 



Monoplex cornutiis, Perry (pi. iii., f. 1), takes priority over 

 Triton exai'atus, Reeve, 1844. 



Monoplex formosus, Perry (pi. iii., f. 5), is recognised by 

 Deshayes (An. s. Vert, ix., p. 635) as a synonym of Triton 

 clavator, Lamarck, 1822 { = Mitrex clavator, Dillwjm, 1817). 

 Triton sinensis, Reeve, seems to me to be identical, 



Biplex aust7'alasia, Perry (pi. iv., ff. 2, 4), is identified by 

 Deshayes (An. s. Vert, ix., p. 542) as Ranelia leucostonia, 

 Lamarck, 1822. 



Biiplex perca^ Perry (pi. iv., f. 5) is given precedence by 

 Deshaj-es (An. s. Vert, ix., p. 556) over Ranelia jndchra, 8owerby, 

 1844. 



Biplex rubicola, Perr}'- (pi. v., f. 5), is identified by Morch (Cat. 

 Yoldi Coll., 1852, p. 106) as Ranelia granifera, Lamarck, 1822. 



Triplex frondosa, Perr}" (pi. vi., f. 1), is quoted by Brazier (Cat. 

 Murex, p. 60) as equivalent to Murex australis, Quoy tt Gaimard, 

 1832, and to M. pahniferus, Sowerby, 1840. He overlooked the 

 fact that Murex australis was preoccupied by Gmelin, 1790. 

 Triplex denudata, Perry (pi. vii., f. 2), seems to me to be tlie 

 same species. I recommend the use of Murex denudata, Perry. 



Triplex flavicunda, Perry (pi. vi., f. 2), and T. I'ubicunda, 

 Perry (pi. vi., f. 2), are marked by Deshayes (An. s. Vert, ix., 

 p. 574) as synonyms of Mnrex adnstus, Lamarck, 1822. Over 

 all these names Purpura scahra, Martyn (Univ. Conch. 1789, 

 pi. 113), has precedence. 



Sei^ta parkinsonia, Perry (pi. xiv., f. 1), is obviously identical 

 with Triton fusiforme, Kiener, 1842. 



Septa rubicunda, Perry (pi. xiv., f. 4), is Triton riodijerum, 

 Lamarck, 1822. Plates i.-ii. of Hunter's 'Historical Journal' 



