BY R. TATE AND W. L. MAY. 417 



Genus R o x a n i a, Leach, 1 847. 



*R. EXIGUA, A. Adams {Atys), P.Z.S., 1878, p. 869. 

 Derwent Estuary, W. L. May. 



Family AKERID.E. 



Genus A k e r a, Miiller, 1776. 



*A. Tasmanica, Beddome, P.R.S.Tasm., 1883, p. 169. 



Hydatina tasmanica, Hedley, P.L.S.N.S.W., xxv., p. 725, f. 22, 



1901. 

 Loc. ? (Coll. W. F. Petterd !); Brown River (type). 



Genus Amphisphyra, Loven, 1846. 



\^ = Diaphaiia, Brown, 1833, non Hubn., 1816]. 



A. Brazieri, Angas {Dlaphana), P.Z.S., 1877, p. 179, t.26,f.20. 

 Loc. 1 (Coll. C. E. Beddome). 



Family RINGICULID.E. 



Genus Ringicula, Deshayes, 1838. 



R. AUSTRALis, Hinds, P.Z.S., 1844, p. 97; Crosse & Fischer, 



Journ. de Conch., 1865, p. 44, t. 2, f. 5 = i?. Angasi, Brazier. 



Loc. 1 (Census). 



Family APLUSTRID^. 



Genus Bullinula, Beck, 1840. 

 [ = BuUina, Adams, non Ferussac, 1821]. 



*B LiNEATA, Gray (Bulla), 1825; Wood, Index Test. Suppl. t.30. 

 Bullina lineata, Sowerby, Thes. Conch., t, 120, f. 2; Reeve, 



Conch. Icon., f. 2. 

 Pirate's Ba}^ E. Coast, W. L. May. 



Family APLYSHD^. 



Genus A p L y s i A, Linne, 1767. 



*A. CONCAVA, Sowerby, Gen. Shells; Reeve, Mon.; Conch. Icon., 

 sp. 24. 

 Maria Island, W. F. Petterd \; Bruni Island (Census). 



