By W. L. M'AY. 389 



In its sunken spire and biplicate columella it recalls 

 M. cratericula Tate and May, but in other respects is 

 widel}' different from that species. It occurs also in South 

 Australia, where the variation is also extremely great 

 (Dr. Verco). 



MARGINELLA MICROSCOPICA, N.S.P. (PL. XIV., 

 FIG. 13). 



Shell very minute, cylindrical; spire hidden; dull 

 white; aperture as long as the shell; narrow, linear, but 

 expanding anteriorly; outer lip straight, thickened, 

 smooth; columella rather convex, with three oblique 

 plaits. 



Length, 1.5 m.m.; breadth, .7 m.m. 



Locality: Type from 100 fathoms seven miles east of 

 Cape Pillar, with several others. 



This is the most minute species known to me. It is 

 somewhat like AI. whani Prit and Gatliff. on a micro- 

 scopic scale ; but in that species, besides the vast difference 

 in size, the aperture bends over the summit to a far 

 greater degree. 



II. — The following 14 species, now described as new, 

 are principally from the deeper waters of our continental 

 shelf, where recent .dredgings have introduced us to a rich 

 field of which we can have as yet but a very slight ac- 

 quaintance. 



There is not in this assemblage anything extraor- 

 dinarily new to our fauna with the exception of the shell 

 I have named Daphnella pagoda. This is a striking 

 novelty, and is rather tentatively placed at present; it 

 may require a new genus for its reception. As with the 

 Marginellas I have drawn these figures under the camera 

 lucida, and the types are also placed in the Tasmanian 

 Museum. 



PISAXIA SCHOUTAXICA. (PL. XIV., FIGS. 

 i4-i4a.) 



Shell yellowish brown, solid, bluntly fusiform ; whorls 

 five (plus a small, smooth two-whorled protoconch), 

 rounded, each bearing a strong varix; aperture elongated 



