321 



and is only a separation of the inner lip at its tip, from the 

 sinistral twist of the extremity of the columella. 



Dredged in 17 fathoms Backstairs Passage, 4 dead, mod- 

 erate. Taken on the beach at Aldinga and at Fowler Bay, 

 and on St. Francis Island. 



Daphnella diluta, Sowerby. 



Daphriella diluta, Sowerby, Proc. Mai. vSoc, l^ondou, vol. 2, 

 1896, p. 26, pi. iii., fig. 6. Type locality — "Backstairs Passage, 

 20 fathoms (Verco)." 



Dredged in Backstairs Passage, 17 fathoms, 4 dead; in 

 20 fathoms, 2 fresh, 8 dead ; in 22 fathoms, 1 alive, 3 fresh, 

 4 dead; in Gulf St. Vincent, depth unrecorded, 6 moderate; 

 in 55 fathoms off Cape Borda, 1 broken. 



Daphnella inornata, Sowerby. 



Mangilia inornata, Sowerby, Proc. Mai. Sec, London, 1896, 

 vol. ii., p. 30,' pi. iii., fig. 15. Type locality — -"Gulf St. Vincent." 



Dredged alive in 22 fathoms Backstairs Passage ; also 

 many alive or dead in 15, 17, and 20 fathoms in Gulf St. 

 Vincent ; in 62 fathoms north-west off Cape Borda, 1 per- 

 fect, 2 good immature ; in 90 fathoms off Cape Jaffa, 1 dead ; 

 in 110 fathoms off Beachport, 5 good. 



I think this is a DuphneUa from its light texture, fine 

 cancellation, and sinus. 



Daphnella fenestrata, n. sp. PI. xxviii., ligs. 6 and 7. 



Shell delicate, white, of 5 whorls, including a rather 

 blunt scarcely mamillate protoconch of 2 convex whorls, with 

 7 spiral lirse, ending abrupth^ at the first axial rib. Spire- 

 whorls gradate, subconcavely sloping below the suture, with 

 a sharp lira at the edge of the gradation ; whorls contracting 

 towards the lower suture ; body-whorl contracted at the base ; 

 canal very short ; aperture oblong-oval, outer lip thin, with 

 ten lirae outside, which with the lip in profile project as minute 

 spurs ; sinus well marked from the suture to the angle ; inner 

 lip a narrow, opaque-white glaze : columella long, straightly 

 convex. Sculpture bold, five spirals in the first and second 

 whorls, including that at the angle, fourteen on the body- 

 whorl, narrow, erect; axials, twenty in the penultimate, coro- 

 nating the uppermost spiral with projecting points, and pro- 

 ducing tiny tubercles as they cross the other spirals. Crowded 

 axial threads, concave forwards, run from the simple suture 

 to the angle. 



Dim. — Length, 4 mm.; of the body-whorl, 28 mm.; 

 breadth, 1*5 mm. 



