BY C. HEDLEY. 543 



BORNIA LEPIDA, n.Sp. 



(Plate xxxii., figs. 22, 23.) 



Shell of rather variable outline, oblong, subequilateral, com- 

 pressed, umbo prominent, ventral margin perceptibly sinuate. 

 Colour uniform pale brown. Sculpture : fine, dense, radiating 

 threads, interrupted by concentric growth lines. Depth of single 

 valve 1, height 4, length 6-3 mm. 



^a6.— Manly Beach (Miss L. Parkes), Watson's Bay (H. L. 

 Kesteven), Maroubra, Balmoral, and Wreck Bay (C. Hedley), 

 and Long Bay (H. S. Mort). Not uncommon in shell sand on 

 the ocean beaches near Sydney. 



Type. — To be presented to the Australian Museum. 



The novelty is very like B. radiata^ from 111 fathoms off Cape 

 Byron, but differs by being almost equilateral. 



Kellia suborbicularis Montagu. 



Mya suhorbicidaris Montagu, Test. Brit., 1804, pp.39, 564, 

 pi. xxvi., fig. 6. 



Modern writers have developed a world-wide range for this 

 species, but it has so far escaped inclusion in Australian catalogues. 

 Hanley f considered that Amphidesma physoides Lamarck % 

 described from King George's Sound, W".A., was identical with 

 Montagu's species. He noted later that the type oiA. physoides, 

 which he had examined in the Paris Museum in 1843, was, 

 according to Recluz, destroyed in 1856.§ 



Smith has repeatedly || expressed his conviction that Ei-ycina 

 rotunda DeshayesU from More ton Bay, Queensland, cannot be 

 separated from K. suborbicularis. 



* Hedley, Records Austr. Mus. vi. 1905, p. 48, f.l2. 



t Cat. Kecent Shells, 1843, p. 43. 



X Anim. s. Vert, v., 1818, p. 493. 



§0p. cit., 1856, p. 343. 



II Ann. Mag. Nat. Hist. (6), x., 1892, p. 132 and Proc. Malac. Soc. v. 



1902, p. 163. 



IT Proc. Zool. Soc, 1855, p. 181. 



