MOLLUSCA, -HEDLEY. 
61 
Trophon coulmanensis Smith. 
(Plate IX., fig. 99.) 
Trophon coulmanensis Smith, Nat-. Antarct. Expecl., ii., 1907, Moll., p. 3, pi. i., fig. 4 ; 
Id., “ Terra Nova ” Exped., Zool., ii., 1915, Moll., p. 73, pi. i., fig. 14. 
A single specimen taken alive shows the fronds curling in above the whorls more 
perfectly than the shell originally figured. This illustration was prepared before Mr. 
Smith’s subsequent figure had reached me. It is 18mm. long, and occurred, December 
28th, 1913, in 288 fathoms, ooze, off the Mertz Glacier Tongue, Adelie Land, in South 
Lat. 66° 55' and East Long. 145° 21'. 
Trophon longstaffi Smith. 
Trophon longstaffi Smith, Nat. Antarct. Exped., ii., 1907, Moll., p. 3, pi. i., fig. 3 ; Id., 
Hedley, Brit. Antarct. Exped., ii., 1911, p. 8, pi. i., fig. 14 ; Id., Smith, “ Terra 
Nova ” Exped., Zool., ii., Moll., 1915, p. 73. 
From Commonwealth Bay : one, September 3rd, 1912, 12 fathoms ; two, September 
3rd, 1912, 25 fathoms ; two, December 14th, 1913, 45-50 fathoms ; two, December 
21st, 1913, from 55-60 fathoms ; and one, December 22nd, 1913, from 350-400 fathoms. 
Two, December 28th, 1913, from 288 fathoms, off the Mertz Glacier Tongue, Adelie 
Land, in South Lat. 66° 52' and East Long. 145° 30'. 
Trophon shackletoni Hedley. 
Trophon shackletoni Hedley, Brit. Antarct. Exped., ii., 1911, Moll., p. 7, pi. i., fig. 13 ; 
Id., Smith, “ Terra Nova ” Exped., Zool., ii., 1915, Moll., p. 73. 
A specimen from off Drygalski Island might, if not broken, have attained a length 
of over 60mm. In general appearance it corresponds to those from McMurdos Sound 
but has fewer and wider spaced varices, and the spiral sculpture is more pronounced, 
being furrows rather than scratches. 
A fragment, December 21st, 1913, from 55-60 fathoms, Commonwealth Bay; 
and two, January 21st, 1914, from 60 fathoms, off Drygalski Island, in South Lat. 
65° 42' and East Long. 92° 10'. 
Kerguelenia redimiculum Reeve. 
Siphonaria redimiculum Reeve, Conch. Icon., ix., 1856, pi. v., fig. 24 ; Id., Smith, Phil. 
Trans. Roy. Soc., clxviii., 1879, p. 182 ; Id., Martens, Deutsch. Tiefsee Exped., 
vii., 1903, p. 72. 
Kerguelenia redimiculum Mabille and Rochebrune, Miss. Scient. Cap Horn, Moll., 1889, 
p. 28. 
Mr. H. Hamilton collected 18 specimens on “ rocks in littoral zone ” at Macquarie 
Island, of a form thus determined, which is, however, smoother than Reeve’s figure, 
