328 



Mr. Hedley, who has seen my series, regards his type as 

 a micromorph of C kinge.nsis, and withdraws his species. 



It is very variable. It may be 16 mm. long, as in the 

 tyjae of C . cognata, 11 mm. as in M. emina, or 575 mm. as 

 in some adult examples of mine. In shape it may be long 

 and narrow, or short and broad. In sculpture it may have 

 axial ribs, well marked, narrow, almost lamelliform, or round 

 and solid, or low, or quite obsolete, especially on the body- 

 whorl. The spiral lirse may be quite valid, or revealed only 

 by a fairly high power of the microscope ; generally the 

 spirals are best marked when the axials are small. The colour 

 may be a uniform brown tint, or there may be spiral colour 

 bands of different widths, or the shell may be white. 



Dredged in 15-20 fathoms off St. Francis Island, 1 nearly 

 adult; in 40 fathoms off Beachport, 11 good: 55 fathoms 

 north-west of Cape Borda, 1 good, 2 poor : in 90 fathoms off 

 Cape Jaffa, 2 immature : in 104 fathoms 35 miles off the Nep- 

 tunes, 19 good, 35 immature; in 110 fathoms off Beachport, 

 2 good, 3 moderate ; in 130 fathoms off Cape Jaffa, 5 per- 

 fect, 5 immature; in 150 fathoms off Beachport, 3 moderate; 

 in 200 fathoms, 6 good, 4 poor ; in 300 fathoms off Cape 

 Jaffa, 4 immature. It appears not to inhabit our shallower 

 waters, but to be fairly evenly distributed, though rare from 

 40 to 300 fathoms. 



Borsonia ceroplasta, Watson. 



. Borsnnia ceroplasta, Watson, Chall. Reps. Zool., 1886, vol. 

 XV., p. 368, pi. xviii., fig. 2, "North of Culebra Island, West 

 Indies, 390 fathoms, Fferopod ooze." 



Dredged in 300 fathoms off Cape Jaffa, 1 dead shell. It 

 differs from the type in that its spire is proportionally not 

 quite so long, and no obsolete flat spirals are visible above 

 the suture and winding round the base. The nucleus, suture, 

 infrasutural pad, angulation, tubercles, generic fold on the 

 columella, canal, labral sinus (as well as can be determined 

 from the description and figure) are identical. As only one 

 specimen, has been taken, and this immature, of six whorls 

 only instead of eight, and a dead though well-preserved ex- 

 ample, and as the members of the Pleurotomidae show very 

 wide specific variations, it is probably only a variant, and is 

 provisionally so recorded. This is a new geniis for South 

 Australia. 



Mitromorpha alba, Petterd. 



f'olviiihclhi alha, Petterd, Jour. Conch., vol. ii., 1879, p. 

 104. Tijpe locality — ''Blackman's Bay, Tasmania." 



Mitromorpha alba, Petterd, Tate, Proc. Roy. Soc, New South 

 Wales. 1898, p. 397; Tate and May, Proc. Linn. Soc, New South 



