56 
AUSTRALASIAN ANTARCTIC EXPEDITION. 
A single specimen was dredged alive, February 24th, 1914, from 1,800 fathoms, 
ooze bottom, off the coast of South Australia, in South Lat. 35° 55-|' and East 
Long. 134° 18'. 
Prosipho aurora sp. nov. 
(Plate VIII., fig. 91.) 
Shell conical, somewhat turreted. Whorls six, the first two forming a smooth 
turbinate protoconch, the others rounded with a sloping shoulder. Epidermis thin, 
persistent, buff, underlying shell white. Sculpture : on the body whorls are nine spirals, 
of which the median four are prominent, penultimate with five spirals, three being median 
and prominent and one following the suture of the lower whorl. Aperture pyriform, 
outer lip simple, canal short, inner lip excavate. Length, 7 ; breadth, 4mm. 
Five years ago I prepared a figure and description, which still remains in editorial 
hands awaiting publication, of a shell from the so-called raised beach at Cape Royds. 
This species, with which I associated the name of the discoverer, Mr. E. R. Priestly, 
is related to the present form. P. aurora is, however, larger, comparatively broader, 
and has a shorter snout. 
Eleven specimens were taken, July 4th, 1912, from 25 fathoms, Commonwealth 
Bay, Adelie Land. 
Prosipho hunteri sp. nov. 
(Plate VIII., fig. 92.) 
Shell conical. Whorls five, of which the first two are smooth elongate-turbinate 
protoconch. Epidermis thin, buff colour. Sculpture : on the last whorl four spirals, 
of which the posterior is undulating and most developed, while the anterior ones are 
progressively fainter. On the upper whorls are two spirals, the posterior being most 
prominent and nodulous. The interstices between the cinguli are finely radiately 
striate. Aperture pyriform, outer lip simple, columella excavate, canal short and open. 
Length, 6 ; breadth, 3mm. 
Named in honour of Mr. J. G. Hunter, Biologist at the Main Base. 
Four specimens taken, July 4th, 1912, from 25 fathoms ; and five, December 14th, 
1913, from 45-50 fathoms, Commonwealth Bay, Adelie Land. 
Prosipho madigani sp. nov. 
(Plate VIII., fig. 93.) 
Shell conic-fusiform, somewhat turreted, flattened from the suture to the shoulder, 
rounded at the periphery and hollow at the base. Colour buff. Whorls six, the two 
first forming a smooth mucronate protoconch. Sculpture : on the last whorl are 12 
