119 



Turrit ella acuta, Tenison-Woods, Proc. Roy. Soc, Tasmania^ 

 '1876,(1875), p. 143. Type locality— hong Bay, Tasmania (non 

 M. O. Mayer, 1859, Jour, de Conch., vol. vii., p. 298, pi. xi., 

 fig. 7); (TorculaJ, Tryon, Man. Conch., 1886, vol. viii., p. 206, 

 pi. lxiv., fig. 10; Kobelt, Conch. Cab. (Ed. Kiister), 1897, Band i., 

 Abt. xxvii., p. 56, No. 70, pi. xviii., fig. 5; Adcock, Handlist 

 Aquatic Moll, of South Australia, 1893, p. 6, No. 189; recorded 

 for South Australia. 



Turrit ella oxyacris, Tate (nam. mut.J, Trans. Roy.- Soc, 

 South Australia, 1897, vol. xxi., p. 41; Pritchard and Gatliff, 

 Proc. Roy. Soc, Victoria, 1900 (1899), vol. xii. (N.S.), part 2, 

 pi 202; recorded for Victoria. 



Dredged alive in 20 and 22 fathoms in Backstairs Pas- 

 sage, and in 20 fathoms Gulf St. Vincent. Dredged dead 

 from 13 fathoms upwards; in 40 fathoms off Beachport, 60 

 large and small, mostly worn ; in 55 fathoms off Cape Borda, 

 51 ', up to an inch long; in 110 fathoms off Beachport, 16 in 

 moderate condition ; in 130 fathoms off Cape Jaffa, 6 very 

 poor ; in 200 fathoms off Beachport, 1 fragment. It appears 

 to live at about 20 fathoms, not in the very shallow nor in the 

 very deep water. Some of the shells from 40 fathoms have 

 axial lines, about 16 in a whorl, which seem like cracks in the 

 deeper layer of the shell substance, and become visible as the 

 outer scabrous covering is worn off. 



On the base tl^ere may be as many as twelve distinct spiral 

 lirae, or only three or four obsolete threads near the periphery. 

 Generally three or four larger threads encircle the middle 

 third of the spire- whorls ; sometimes twelve or fourteen of 

 nearly equal size are distributed over the whorl. The peri- 

 pheral cord may be very stout, and project considerably beyond 

 the suture, so imbricating the whorl below ; or it may not 

 project at all, and the whorls may be uniformly sloping or dis- 

 tinctly convex. 



Turritella clathrata, Kiener, 



Turritella clathrata, Kiener, Icon. Coq. Viv., p. 38, pi. xiv.,. 

 fig. 1. Type locality — Shores of New Holland. Reeve, Conch. 

 Icon., 1849, vol. v., pi. viii., fig. 37; (TorculaJ, Tryon, Man. 

 Conch. 1886, vol. viii., p. 206, pi. lxiv., fig. 2; Kobelt, Conch. 

 Cab. (Ed. Kiister), Band i., Abt. xxvii., 1897, p. 26, No. 35, pi. vi., 

 fig. 5, and pi. vii., fig. 5; Adcock, Handlist of Aquatic Moll., 

 South Australia, 1893, p. 6, No. 190, recorded for South Aus- 

 tralia; Pritchard and Gatliff, Proc. Roy. Soc, Victoria, 1900 

 (1899), vol. xii. (N.S.), part 2, p. 202, "South-west Victorian 

 coast"; Tate and May, Proc. Linn. Soc, New South Wales, 

 1901, vol. xxvi., part 3, p. 378, recorded for Tasmania. 



Kiener in his description and plate represents the species 

 as quite smooth. But actually besides the two prominent 

 keels there are seven to ten spiral striae, generally one more 

 above the carina than below. In addition there are, crossing 

 these, very fine lamellar striae, following the curve of the- 



