54 
AUSTRALASIAN ANTARCTIC EXPEDITION. 
One, December 28tb, 1913, from 288 fathoms, ooze, off the Mertz Glacier Tongue, 
Adelie Land, in South Lat. 66° 55' and East Long. 145° 21'. Another, January 2nd, 
1914, from 230 fathoms, ooze, off Wilkes Land, in South Lat. 65° 48' and East Long. 
137° 32'. Two, with an anemone to each, January 28th, 1914, from 240 fathoms, ooze, 
off the Shackleton Ice-shelf, in South Lat. 65° 20' and East Long. 95° 27' ; and another, 
January 31st, 1914, from 110 fathoms, stony bottom, off the Shackleton Ice-shelf, in 
South Lat. 64° 32' and East Long. 97° 20'. 
Marginella hyalina Thiele. 
(Plate VII., fig. 83.) 
Marginella hyalina Thiele, Deutsch. Siidpol. Exped., xiii., 1912, p. 213, pi. xiii., fig. 26. 
A single specimen dredged, December 31st, 1913, in 157 fathoms, D’Urville Sea, 
in South Lat. 66° 32' and East Long. 141° 39'. It is 7-5mm. long, nearly twice the size 
of the type, it has also an additional whorl. It is, therefore, longer in proportion to 
breadth, the suture is margined, and the aperture ascends at the insertion of the lip. 
Admete delicatula Smith. 
Admete delicatula Smith, Nat. Antarct. Exped., ii., 1907, Moll., p. 4, pi. i., figs. 5, 5 a ; 
Id., “ Terra Nova ” Exped., ii., Moll., 1915, p. 74. 
A single specimen, December 31st, 1913, from 157 fathoms, ooze, in the D’Urville 
Sea, in South Lat. 66° 32' and East Long. 141° 39'. 
Oenopota davisi sp. nov. 
(Plate VIII., fig. 84.) 
Shell ovate, rather thin, spire gradate. Colour buff. Whorls four, of which one 
and a half are nuclear. Sinus deep, subsutural, the fasciole forming a broad flat shelf. 
Sculpture : low, narrow, close-set, radial lamellae, concave on the fasciole and forwardly 
directed on the body whorl, reticulated by fine close spiral incised lines which extend 
from the angle of the shoulder to the end of the snout. Aperture narrow oblong, outer 
lip thin and simple, canal short and broad, inner lip smoothed with a layer of callus. 
Length, 7 ; breadth, 4mm. 
This appears to be related to Bela plicatula Thiele,* but is broader and is more 
densely spirally striate. It is named in honour of Capt. J. K. Davis, and in remembrance 
of the excellent oceanographic work which he achieved on the “Aurora.” 
Iredale has shown f that in its original sense Bela was synonymous with Mangilia. 
For the group generally but wrongly called Bela, he recommended Morch’s name of 
Oenopota. 
* Thiele.—Deutsch. Siidpol. Exped. xiii., 1912, p. 215, pi. xiv., fig. 4. f Iredale.—Proc. Malac. Soc., xi., 1915, p. 299. 
