420 CENSUS OF THE MARINE MOLLUSCA OF TASMANIA, 



*0. PARVUS, Swainson (Crenmobates), P.R.S.Tasm., 1856, p. 44, 

 t. 7, f. 3. 

 Oyster Cove, near Hobart (type); near Pirate's Bay, W. L. May. 



*0. MINOR, Mousson {Melampus), Journ. de Conch., 1859, p. 65, 

 t. 5, f. 3. 

 Tamar Heads, W. F. Petterd ! . 



Class SCAPHOPODA. 



Family DENTALIID.E. 



Genus Dentalium, Linne, 1758. 



D. Tasmaniense, Ten.-Woods, P.R.S.Tasm., 1877, p. 140. 

 N.W. Coast (type). 



D. Weldianum, Ten.-Woods, op. cit., p. 140. (PI. xxv., fig. 51). 

 N. Coast (type). 



Family SIPHODENTALIID.E. 



Genus C a d u l u s, Philippi, 1844. 



*C. acuminatus, Tate, T.R.S.S.Aust., ix., 1887, p. 194,t. 20,f.lO; 

 xxiii., p. 266, t. 8, f. 11, 1899. 

 Very plentiful near Circular Head, W. L. May; (Coll. W. F. 

 Petterd !). 



*C. spretus, Tate & May, T.R.S.S.Aust., xxiv., 1900, p. 102. 

 (PI. XXV., fig. 62). 

 Port Esperance in 24 fathoms, W. L. May. 



Class LAMELLIBRANCHIATA. 



Family GASTROCHAENID^. 



Genus Humphreyia, Gra}^ 1858. 



*H. Strangei, Adams (Aspergillum), P.Z.S., 1852, p. 91, t. 15, 

 f. 5; Reeve, Mon. Asjjergillum, f. 4, 1860. 

 Rare, N., also Islands in Bass Straits (Census). 



Genus Gastrochaena, Spengler, 1783. 

 *G. Tasmanica, Ten.-Woods, P.R.S.Tasm., 1877, p. 59 ; Tate, 

 T.R.S.S.Aust., ix., 1887, p. 81, t. 5, f. \Oa-h. 

 Long Bay (type); also S. Coast, rare (Census). 



