^02 Cltapman and Gabriel : 



Fam. LEDIDAE. 

 Genus LEDA, Schumacher. 

 Leda huttoni, T. Woods. 

 Leda hiiffoni, T. Woods, 1878, Proc. Linn. See. N.S. Wales, 

 vol. iii. pi. .xxi. fig 2, Tate, 1886, Trans. R. Sec. S. 

 Austr. vol. viii. p. 130, pi. vi. fig. 4. 

 A single, rather worn, but nevertheless undoubted valve of the 

 •above species occurs in the Mallee borings. In examining this 

 specimen, together with numerous examples of L. huttoni, in the 

 Dennant collection, we are struck with the close morphological 

 affinities of his species with L. lefroyi, Beddome, living on the 

 southern Australian coasts. It only materially differs from that 

 species in the more regularly convex ventral margin and heavier 

 dentition. 



Distribution. — Bore 8, 165-180 feet. 



Fam. PARALLELODOXTIDAE. 

 Genus CUCULLAEA. Lamarck. 



CUCULLAEA CORIOENSIS, McCoy. 



Cucullaea corioensis, McCoy, 1876. Prod. Pal. Vict., dec. 

 iii. p. 32, pi. xxvii., figs. 3, 4, 5a, b. 

 In the examination of some fragments of heavy examples we 

 note a uniformity in the Mallee specimens, in that they show 

 the transverse undulose ornament with the convexity on the radial 

 ribs pointing towards the ventral margin. The two heaviest speci- 

 mens figured by McCoy show the same feature, whilst the remainder 

 and those from Muddy Creek in the Dennant collection exhibit a 

 similar ornament, but with the undulations directed to the dorsal 

 margin. 



JJistribuf ion. —Bore 8, 199-204 feet. Bore 9. 263-273 feet; 315- 

 325 feet. 



Fam. ARCIDAE. 



Genus LISSARCA. E. A. Smith. 



lilSSAKCA RUHKlCArA, Tate sp. 



Li?nopsis rubrirafa, Tate, 1887. Tran.s. Roy. Soc. S. Austr., 

 vol. ix., p. 71. pi. v., fig. 6. 



Lissarca rubricata, Tate sp., Verco, 1907, Trans. Roy. Soc. 

 S. Austr., vol. xxxi. p. 221, Gatliff and Gabriel, 1908, 

 Proc. R<.y. Soc. Vict. vol. xxi. (N.S.), pt. I. p. 390. 



