438 CENSUS OF THE MARINE MOLLUSCA OF TASMANIA, 



Type (Brit. Mus.); common (Census); Frederick Henry Bay, 

 W. L. May. 



Genus M o d i o l a, Lamarck, 1801. 



^M. ALBicosTA, Lamarck !, 1819; Delessert, Recueil, t. 13, f. 8; 

 Reeve, Conch. Icon., t. 2, f. 7. 

 Common (Census); E. and S. Coasts, W. L. May. 



^'M. ARBORESCENS, Chemnitz; Sowerby, Gen. Shells, f. 1; Reeve, 

 Conch. Icon., t. 6, f. 30. 

 Long Bay, very rare (Census); Loc. ? (Coll. C. E. Beddome!); 

 Port Esperance, W. L. May. 



^M. AUSTRALis, Gray, King's Survey, Aust., ii., p. 477, 1827; 

 Reeve, Conch. Icon., t. 5, f. 21. 

 M. tulipa, var., Lamarck; M. albicosta, var. spatula, Lamarck. 

 Loc. 1; common (Census). 



*M. iNCONSTANs, Dunker (Volsella), P.Z.S., 1856, p. 363. 



M. semivestita, Tate, T.R.S.S. Aust., ix., p. 106, t. 5, f. 16a-b, 



1887 (non Dk.), 

 Tasmania (type); Derwent Estuary, IV, L. May. 



^M. CONFUSA, Angas {Perna), P.Z S., 1871, p. 21, t. 1, f. 33. 

 M. crassa, Ten.-Woods, P.R.S.Tasm., 1877, p. 157. 

 Circular Head, rare; Adventure Bay, abundant, Ten.-Woods ; 

 Hobart Mus.; Frederick Henry Bay, common, W. L. May. ; 



Genus M o d i o l a r i a, Loven, 1846. 



■^'M. BARBATA, Rceve, Mon. Lithodomus, t. 5, f. 27; Lith.lanigerus, 

 Reeve. 

 Frederick Henry Bay and E. Coast, W. L. May. 



^*M. CuMiNGiANA, Reeve, Mon. Modiola, t. 9, f. 50. 



Long Bay and Tamar Heads, not common (Census); Frederick 

 Henry Bay, W. L. May. 



M. VEXILLUM, Reeve, Mon. Modiola, t. 8, f. 40, 1857. 

 Volsella picta, Dunker, P.Z.S., 1856, non Lamk. 

 Tasmania (type). 



