297 



canal short and open, slightly bent to the left. Outer lip 

 thin, simple, crenulated outside by the spirals. Colour dull- 

 creamy-white, with irregular faint-brown narrow axial 

 flames, with a tendency to follow the curve of growth lines. 

 The larger carinai are more or less regularly articulated with 

 brown. 



Dim. — Length, 8 mm. ; body-whorl, 4'6 mm. ; width, 3'3 

 mm. 



Locality. — Type in 40 fathoms off Beachport, with 5 

 others. 



The protoconch is not the usual one of Drillia; it re- 

 sembles closely that of Fustis lincohren-ns , Crosse and Fischer, 

 but the growth lines indicate a shallow, round sinus just be- 

 low the suture, between the two carinse, which is not found 

 in Fusus. The type is immature, and the others are imperfect. 

 A perfect adult may eventually determine the genus. 



Drillia dimidiata, Sowerby. 



Drillia dimidiata, Sowerby, Proc. Mai. Soc, London, vol. ii., 

 1896, p. 24, pi. ill., fig. 2. Type locality — "Backstairs Passage, 

 16-18 fathoms (Verco)." 



It may reach a length of 14 mm. Dredged in 12 fathoms 

 off Porpoise Head, 1 dead; in 16-18 fathoms Backstairs Pass- 

 age, 1 recent; in 19 fathoms Yankalilla Bay, 1 dead; in 20 

 fathoms off Newland Head, 1 dead ; in 22 fathoms Backstairs 

 Passage, 2 dead ; in 40 fathoms off Beachport, 3 moderate. 



Drillia dulcis, Sowerby. 



Daphnella didcis, Sowerby, Proc. Mai. Soc, London, vol. ii., 

 1896, p. 26, pi. iii., fig. 5. Type locality—" GuU St. Vincent 

 (Verco)" ; also var. alha. 



Sowerby says in a note to his definition: — "There are no 

 longitudinal ribs," but in the shell returned to me as the 

 type there are very faint obliqiie axial plications, and in sonie 

 specimens since collected these may be properly styled axial 

 riblets. The shell may be of a dark-brown colour, with bands 

 and flames of darker tint, or any lighter shade of brown to 

 white, the tip being generally most coloured. 



Mr. Hedley, on seeing my specimens, wrote: — "What I 

 named as a variety of D. liaswelli, Hedley, from Cape Pillar 

 (Records of the Austr. Mus., vol. vii.. No. 2, 1908, p. 112), 

 is evidently your D. dulcis, Sow. Typical D. liaswelli is dis- 

 tinct." 



Dredged in 15, 16, 17, 20 fathoms in Gulf St. Vincent, 

 Spencer Gulf, Backstairs Passage, and Investigator Strait, 

 more than 80 alive and dead ; in 15-20 fathoms off St. Fran- 

 cis Island, 2 very good ; in 35 fathoms, 1 good and 3 poor ; 



