108 



FAMILY PECTINIDiE. 



155. Pecten asperrimtts, Lamarck, An. s. Vert., vi., p. 174 ; 

 id. Eeeve, Mon. Pecten., t. 20, f . 5 ; P. australis, Sowerbv, 

 Thes. Conch., p. 76 ; id. Eeeve, t. 25, f . 103. 



On a soft bottom, at a depth of a few fathoms. Throughout 

 the whole length of our coastline. Also "West Australia 

 (Sowerby), Tasmania (Lamarck), New South "Wales, New Zea- 

 land, and Gulf of Suez (Vaillant, J. de Conchyl., 1865, p. 112). 



About 30 radial ribs, flanked on each side by a smaller one, 

 all studded with small spinous scales ; colour yellow, orange, 

 brown, scarlet, or purplish ; about two inches diameter. 



156. Pecten Pulleineanus, Tate, antea, p. 73, t. 4, figs. la-b. 

 South-East coast (B. H. Pulleine !) 



Thirty-three simple similar ribs crossed by close-set con- 

 tinuous lamellae ; about one inch diameter. 



157. Pecten Bednalli, Tate, antea, p. 73, t. 4, figs. Sa-b. 

 Aldinga Bay (W. T. Bednalli). 



Twenty-four groups of two or three subequal ribs with quin- 

 cuncially-arranged depressions in the interspaces ; about one 

 inch diameter. 



158. Pecten bifrons, Lamarck, An. s. Vert., vi., p. 164 ; 

 id. Eeeve, Mon., t. 12, f. 45. 



Inhabits at about two to six fathoms, and occurs throughout 

 our coast-line reaching to Tasmania. New Holland (Lamarck). 



Depressed, slightly inequivalve and inequilateral, with about 

 seven principal ribs and numerous radial riblets, with a 

 shagreen-like sculpture between them ; attaining a diameter 

 of about three inches. 



159. Pecten fumatus, Eeeve, Mon. Pecten, t. 7, f . 32. Var. 

 albtjs, Tate, Proc. Boy. Soc, Tasm., 1886. 



Syn. :—Yola laticostafa, Angas, P. Z. S., 1865, p. 656 (non. 

 Gray); Pecten bifidus, Menke, Moll. Nov. HolL, p. 35, 1843; 

 id. Philippi, Neu. Conch., Vol. 1, p. 6, t. 2, f. 6, 1845 (non. 

 Minister). 



Inhabits with the last extending from Powler Bay to Port 

 Lincoln and St. Vincent Gulf. Menke's shell is from West 

 Australia. 



Eight valve deeply convex, sixteen convex ribs about as wide 

 as the furrows, white inside and out ; left valve flat, whitish 

 with pink ribs ; attaining to a diameter of three and a half 

 inches. 



160. Lima multicostata, Sowerby, Thes. Conch. ; id. Eeeve, 

 Mon., t. 1, f. 4; Badula lima (Linne), Angas, P. Z. S., 1865, 

 p. 656. 



