96 



On rocks beyond low tide, Fowler's Bay to Port Lincoln ;. 

 Spencer and St. Vincent Gulfs ; also New South "Wales and 

 Lord Hood's Island (type). 



Concentrically frilled with rows of short irregular imbricate 

 spines; white, tinged with red. 



88. Chama ceistella, Lamarck (?), An. s. Vert., vi., 96. 



Same localities as the last species, to which it bears a strong- 

 resemblance ; concentric lamellae, with foliar expansions. 

 Indian Ocean (Lamarck). 



89. Chamosteea alblda, Lamarck, An. s. Vert., vi., p. 96. 

 Port Lincoln ; Kangaroo Island ; St. Vincent Gulf ; South- 



East coast ; also Tasmania, New South Wales, and New 

 Zealand. 



Might valve very convex, keeled, attached by its anterior side; 

 beaks anterior subspiral ; white, smooth ; left valve flat ; about 

 two inches in diameter. 



Family Ltjcln"L[L£. 



90. LrcixA fabula, Eeeve's Mon., t. 11, f. 69 (1850). 

 Streaky Bay ; Wauraultie, Spencer Gulf ; Surveyor's Point, 



St. Yincent Gulf; Encounter Bay. [Polynesia, Beeve.~] 



Shell flat, concentric ridges ending in slight serratures on 

 the post-dorsal margin. Length, a little exceeding half an 

 inch. 



91. Ltjclna Tatei, Angas, Proc. Zool. Soc, 1878, t. 54, f. 15. 

 Fowler and Streaky Bays, Port Lincoln, St. Vincent Gulf r 



and South-East coast. 



Quadrately ovate, front dorsal margin deeply excavated, 

 concentrically and radiately ridged ; length, three-eighths of 

 an inch. 



92. Ltjclna. concexteica. Adams & Angas, Proc. Zool. Soc. r 

 1863, t. 37, f. 19. 



Streaky Bay, Port Lincoln, Wauraultee in Spencer Gulf, 

 Edithburgh, Holdfast Bay. 



Orbicular, subglobose, with thin erect distant concentric 

 ridges, radially striated ; length, nearly one inch. 



93. Ltjclna ceassilieata, Tate, antea, p. 67, t. 4, f . 2. 

 Streaky Bay. 



Orbicular, subglobose, with thick concentric ridges ; length, 

 about quarter of an inch. 



94. Ltjclna quadeistjlcata, D'Orbigny, Voy. Amer. Merid. 

 Moll., Cuba, t. 27, f . 34, 36 ; L. Gumingi, A. Adams & Angas, 

 P. Z. S., 1863, t, 37, f. 20. 



