MOI.r.USCA — HKDLKY. 



295 



LEDA MILIACEA, sp. nov. 



(Fig. 43.) 



Stcations 13, 49. 



Shell small, solid, rather iuHated, anterior side the longer, 

 posterior slightly rostrate, umbo prominent. Externally smooth 

 and glossy, with faint growth strife. 

 Colour pale yellow. Teeth of the 

 pattern of L. crassa, 9 on the pos- 

 terior, 12 on the anterior side. 



Length, 2-25; height, 1-5 mm. 



From all known Australian 

 species the present may be readily 

 known b}' its smoothness and small 



size. LeDA MILIACEA. 



Numerous separate valves were Fig- 43. 



taken off Port Kembla in 63-75 fathoms, and off Cape Three 

 Points in 41-50 fathoms. 



SAREPTA, A. Adams. 



SAREPTA OBOLELLA, Tate, sp. 



Leda obolella, Tate, Trans. Ro3^ Soc. S.A., viii., 1886, p. 129, 

 pi. v., f. 3n-b. 



Sarepta tellincefonnis, Hedley, Rec. Aust. Mus., iv., 1901, p. 26, 

 f. 8. 



Stations 13, 49. 



Mr. T. S. Hall has kindly sent me a series of Leda obolella, 

 Tate, from the Eocene beds of Clifton Bank, Muddy Creek, Vic- 

 toria, and suggested a relationship with m}^ b'. tellitueformis. 



The different stages of growth differ in the proportions of 

 length to depth and height ; adult specimens also vary in contour, 

 so that it is not eas}^ to institute exact comparison. There is, 

 however, one valve among the fossils which so nearly matches my 

 type that I am satisfied to withdraw my specific name. I would, 

 however, retain the genus to which I assigned it. Among the 

 " Thetis " shells a pair of valves was found connected by an 

 external ligament. This fact dissipates the doubt I previously 

 expressed in using the name Sarefta. 



