296 



Drillia harpuiaria, Desmoulins. 



IhiUia harpuiaria, Desmoulins, Actes Soc. Linn., Bordeaux, 

 vol. xii., p. 162; (FleurotumaJ Reeve, Conch. Icon., vol. i., 1843, 

 pi. XV., fig. 124; (Drillia) Tryon, Man. Conch., vol. vi., 1884, n. 

 193, pi. xiv., fig. 99; (Flevrutonia [(Jrassispira']) ^^einkauff, Conch. 

 Cab. (Ed. Kiister), Bd. iv., Abt. iii., p. 97, No. 115, pi. xxi., fig. 

 2, a and b; ( Drillia) .Sowerby, Proc. Mai. Soc, London, 1896, vol. 

 ii., p. 24; Pritchard and Gatliff, Proc. Rov. Soc, Victoria, 1900, 

 vol. xii. (N.S.), p. 170, "Portland." 



This is a common shell. It has been taken on the beach 

 as far west as LeHunte Bay and St. Francis Island, and is 

 very abundant at Sceales Bay. Dredged alive at all depths 

 from 6 fathoms to 19 fathoms in Gulf St. Vincent and Spen- 

 cer Gulf. It has not been taken alive or dead beyond 22 

 fathoms. 



The operculum has a medio-lateral internal nucleus, and 

 puts the shell into tlie subfamily ClavatulinEC and out of 

 Pleurotominse, and therefore out of the genus Drillia. It 

 might be transferred to Clionella, but if D. harpuiaria is re- 

 moved probably many other of oiir Drillias should be ; and 

 so I have left it with them until more of them have had 

 their opercula examined. 



Drillia exarata, Reeve. 



Pleurotoma exarata, Reeve, Proc. Zool. Soc, London, 1845, p. 

 112; Conch. Icon., 1845, pi. xxiii., fig. 201, "habitat unknown"; 

 (Drillia) Tryon, Man. Conch., 1884, vol. vi., p. 204, pi. xii., fig. 

 14; (Flpurofoma [Crassispiia\) ficcacatum. Reeve, Weinkauff, Conch. 

 Cab. (Ed. Kiister), 1887, Band iv., Abt. iii., p. 205, No. 226, pi. 

 xxxix., fig. 12; {Drillia) Sowerby, Proc Mai. Soc, London, 1896, 

 vol. ii., p; 24, "Gulf St. Vincent (J. C. Verco)." 



Taken on the beach, St. Francis Island, 4 good. Dredged 

 alive in 9 fathoms Port Lincoln, and in 22 fathoms in Back- 

 stairs Passage, and dead at intermediate depths off Middle - 

 ton and in Gulf St. Vincent. 



(?) Drillia costicapitata, n. sp. PI. xxvii., figs. ] and 2. 



Shell solid, high, narrow, conical, blunt at the apex, 

 roundly much contracted at the base. Protoconch mamil- 

 late, of two and a quarter whorls, with eighteen round axial 

 ribs. Suture linear, quite inconspicuous. Spire- whorls five, 

 straight, sloping, with two carinse, slightly nodulated, equi- 

 distant from each other and the sutures, the lower much 

 the larger and rounder. Other spirals arise, so that in the 

 penultimate there are two above each carina and two below 

 the lower ; in the body- whorl there are twelve below it ; they 

 are steep behind and sloping in front. Very fine sinuous 

 growth strise cross them. AjDerture roundly rhomboidal, 



