218 



Poroleda ensicula, Angas. 



Leda ensicula, Angas, Proc. Zool. Soc, 1877, p. 177, pi. xxvi., 

 f. 27. Type locality, off Port Jackson Heads, 45 fathoms, 7c?., 

 Smith, Chall. Rep. Zool., xiii., 1885, p. 239. Id., Hedley, Thetis 

 Exped., Mem. Austr. Mns., iv., pt. 5, 1902, p. 293, fig. 41, Id., 

 Pritchard & Gatliff, Proc. Roy. Soc. Vic, xvii. (N.S.), pt. 1, 

 1904, p. 239. 



Dredged off Beachport, in 100 fathoms, 2 valves, in 110 

 fathoms 12 valves, in 150 fathoms very many valves, in 200 

 fathoms 8 valves; off Cape Jaffa, in 90 fathoms 5 valves, in 

 130 fathoms 6 valves ; off Cape Borda, in 60 fathoms 2 valves. 



Sarepta obolella, Tate. 



Leda obolella, Tate, Trans. Roy. Soc. S. Austr., vol. viii., 

 1886, p. 129, pi. v., figs. 3a and b. Type, a tertiary fossil from 

 Muddy Creek. Sarepta tellinoiformis, Hedley, Records Austr. 

 Mus., 1901, vol. iv., p. 26, fig. 8; 75 fathoms 5 miles E. of Sydney 

 Heads. Sarepta obolella, Tate; Hedley, Memoirs Austr. Mus., 

 1902, vol. iv., part 5, p. 295; off Port Kembla 63-75 fathoms, and 

 Cape Three Points 41-50 fathoms. 



Dredged off Cape Jaffa, in 300 fathoms, 1 whole, 6 valves. 



Limopsis tenisoni, Ten. Woods. 



Limopsis cancella,ta, Ten. Woods (non Reeve), Proc. Roy. Soc. 

 Tasm., 1877 for 1876, p. 156. Type locality, north coast of Tas- 

 mania. L. tenisoni, Ten. Woods, Proc. Roy. Soc. Tasm., 1878 for 

 1877, p. 56; Hedley, Memoirs Austr. Mus., vol. iv., part 5, p. 

 297; Pritctard & Gatliff, Proc. Roy. Soc, Vic, 1904, vol. xvii. 

 (N.S.), part 1, p. 245, "Victoria." L. bassi, E. A. Smith, Ohall. 

 Zool., 1885, vol. xiii., pp. 14, 256, pi. xviii., f. 6-6a, "East Mon- 

 coeur Is., Bass Strait, 38 fathoms" ; Tate, Trans. Roy. Soc. S. 

 Austr., 1887, vol. ix., p. 103, No. 136, "South Australia"; Tate 

 and May, Proc. Linn. Soc N.S. Wales, 1901, vol. xxvi., pai*t 3, 

 p. 437. 



Is abundant throughout St. Vincent and Spencer Gulfs, 

 Investigator Strait, and Backstairs Passage, being taken 

 alive at all depths from 10 fathoms up to 30 fathoms. One 

 example was taken alive from 55 fathoms off Cape Borda, 

 and valves have been dredged at all depths up to 130 fathoms 

 off Cape Jaffa ; none beyond this depth. 



It is a very variable species. Some individuals are almost 

 orbicular, others are extremely oblique, some have the radial 

 sculpture very valid, others obsolete. The epidermis may 

 be smooth, silky, and uniform, or disposed in marked con- 

 centric fringes. The brown colouration may be very deep 

 and general, or only in certain parts, or nearly absent. But 

 any attempt to separate into different species is vain. 



Limopsis tenisoni, Ten. Woods ; var. penelevis, rar. nor. 

 PI. xxvii., fig. 5. 

 Shell obliquely oval. Dorsal margin nearly straight. 

 Externa', surface with concentric growth lines, varying in- 



