MOLLUSCA FROM KIGIITY FATHOMS — HEDLEY 297 



ture long, narrow, fortified by a heavy varix, in tlie anterior angle 

 of which is excavated a deep sinus. Columella nearly straight, 

 overlaid by a slight callus. Anterior canal very short and wide. 

 Length, 3*0; breadth, 1-15 mm. 



One specimen. 



This species appears nearest related to ^[, cancellata, Beddome,''' 

 from which, judging by the figure,'^" it differs by having a whorl 

 less and by the cancellate sculpture continuing below the more 

 acute basal angle. In Drillia telescopialis, Verco, weaker and 

 more numerous radials enclose nearly square jiits, but in ^[. 

 lutraria they are much longer than broad. 



Mangilia spica, s/a llOV 



(Plate Iv., fig. 20) 



Shell small, slender, conical, base excavate. Whorls six-and- 

 a-half, including a protoconch of two whorls and a half. Colour : 

 protoeonch cinnamon, adult whorls white ribbing on a buff back- 

 ground. Sculpture : eight prominent undulating radial ribs 

 descend the spire oblicjuely, and terminate abruptly at the peri- 

 phery of the last whorl. They are over-ridden by five strong 

 spiral cords, the peripheral the largest, and marking an obscure 

 angle on each whorl. Between the cords, and broader than them, 

 are deep, radially-striated interstices. On the base are about six 

 widely-spaced spiral cords. Aperture narrow, posterior sinus in- 

 distinct, canal short, broad, open. Length, 4"1 ; l)readth, 

 l"2o mm. 



Two specimens from of! Narrabeen ; another from 100 fatlioms, 

 sixteen miles east of Wollongong. 



Drillia haswelli, sp. nor. 



(Plate Iv., fig. 22). 



Shell small, fusiform, blunt at each end, rather thin, scarcely 

 opa(i[ue. Whorls five and a half, the fir.st two constituting a 

 glassy dome-shaped protoconch, the rest rather inflated, constricted 

 at the sutures, excavate at the ba.se. Colour chalk white, rather 

 glossy when fresh. Sculpture : fine spiral threads, one more pi-o- 

 minent than the rest defines a slight angle on the shoulder. On 

 the last whorl there are about four above and twenty below the 

 angle. The spirals are crossed by arcuate growth lines. Aper- 



1" Beddome— Proc. Roy. Soi-. Tas., 1882 (1883), p. 167. 



-•^ Tate and May -P roe. Linn. Soc. N. 8. Wales., xxvi., 1901, pi. xxiv., f, 2'i 



