384 NEW MIARINE MOLLUS'CA. 



Length, 11.5 m.ni.; breadth, 5 m.m. 



Locahty : Type from 100 fathoms seven miles east of 

 Cape Pillar, with several others; also from 80 fathoms 10 

 miles east of Schouten Island. So far it seems confined to 

 deep Avater. 



This species has considerable resemblance to M. kem- 

 blensis Hedley, but besides being more than twice as 

 long, it differs in having a sharper spire, in the tubercle 

 being much nearer the posterior end, and the plications 

 reaching a less distance up the more excavate columella. 



This is a fine conspicuous form, and resembles M. 

 mayi Tate in size and general appearance, but that 

 species is shorter, broader, and more massive in all re- 

 spects, and without the characteristic tubercle. It is 

 possible that the colour bands are not constant. 



MARGINELLA LODDER^, N.S.P. (PL. XIII., 

 FIG. 5-) 

 Shell fusiform, wih a long spire, very highly polished, 

 yellowish, and faintly l^anded dorsally; whorls four; apex 

 blunt and rounded; aperture not much more than half the 

 length of the shell, very narrow above, but rapidly widen- 

 ing; outer lip slightly thickened, rounded, smooth; 

 columella concave, with four strong oblic|uely ascending 

 plaits. 



Length, 8 m.m.; breadth, 4 m.m. 



Locality: T}'pc fron.i 100 fathoms seven miles east of 

 Cape Pillar, with two others. 



Not like any other described species known to me. It 

 also occurs in deep water in South Australia, where there 

 is another unnamed form which is a near relative (Dr. 

 Verco). 



MARGINELLA DENTIENS, N.S.P. (PL. XIII., 

 FIG. 6.) 



Shell sub-cylindrical, narrow, with a prominent blunt 

 topped spire, pure white, shining, porcellaneous; whorls 

 three (?); aperture narrow, but widening anteriorly; outer 

 lip thickened, curved outside, but straight within, and 

 armed with numerous denticles, which are very irregular 



