Mol.I.U.SCA — IIKDLKY. 



387 



A few specimens fioin 41-50 fathoms olV Capo Tln-ee Points; 

 from •2'2-3G fathoms ofF Port Hackiiii^; from 50-52 fatlioms off 

 Botany Bay; and from 6o-7o fathoms olT Port Keml^la. 



DRILL I A, dray. 



DllILLTA DILECTA, sp. nov. 



(Fig. 100.) 



Stations 13, 37, 49, 57. 



Shell small, solid, narrowly fusiform, tricarinate, shoulder 

 sloping, base contracted, canal short, straight. 

 Whorls five, plus a smooth, elevated, two- 

 whorled protoconch. Colour pale yellow. 

 Sculpture : on the body whorl are three 

 peripheral spiral keels, oia the spire two such 

 keels on each whorl ; on the base are numerous, 

 and on the shoulder three or four, revolving 

 threads. The interstices of the spirals are 

 occupied by the broken lengths of close, fine, 

 longitudinal, raised threads, which united 

 describe a double curve. Aperture simple, 

 presumably undeveloped in the examples to 

 hand. Length, 7 mm. ; breadth, 2 -5 mm. 



This species is in general appearance most 

 like B. tricarinata, Ten. Woods, from which its 

 longitudinal sculpture easily divides it That 

 feature recalls Pleihrotoma violacea, Hinds, a 

 larger and proportionately broader shell, 



A few specimens were taken off Port Kembla in 63-75 fathoms; 

 off Cape Three Points in 41-50 fathoms; 50-52 fathoms off Botany 

 Bay; and 54-59 fathoms off Wata Mooli. My type is chosen 

 from a better example dredged off Cabbage Tree Island, Port 

 Stephens, in 24 fathoms. 



DRILLIA NENIA, sp. nov. 



(Fig. 101.) 



Stations 13, 49, 57. 



Shell small, narrow, angled at the shoulder, glossy. Whorls 

 five, plus a smooth, tilted, globose, two-whorled protoconch. 

 Colour pure white. Sculpture : curved, stout shouldered ribs, 

 twelve on the last whorl, mount the spire obliquely, become 

 obsolete anteriorly, and terminate abruptly at each anal 



Fig. 100. 



