PYCNOGONIDA— CALMAN. 39 



Austrojjcdlene brachyura (Bouvier). 



Pseudopallene hrachyura, Bouvier, 1911, p. 1138 ; id., 1913, p. 98, figs. 51-54. 

 Austropallene spicatn, Hodgson, 1914-15, p. 144. 



Omwrence.— Station 314, McMmxIo Sound, 222-241 fathoms; 1 ?. Station 338, 

 Entrance to McMurdo Sound, 207 fathoms ; 1 $. Station 340, off Granite Harbour, 

 160 fathoms; 1 ?, 1 immature. 



Remarks. — The specimens differ from Bouvier's account of this species in the 

 following points : The spurs on the lateral processes and first coxse are distinctly 

 longer ; on each lateral process, in addition to the spurs, there is a small tubercle about 

 the middle of the distal edge ; and the second coxse have, on the dorsal surface, two 

 rows of tubercles, much more prominent than in Bouvier's figure, and some of them 

 almost spiniform. Like the holotype, all our specimens are females, and although 

 somewhat larger, their measurements show a close agreement in proportions. There 

 can, I think, be little doubt that Hodgson's Austropallene sjncata has been founded on 

 the male sex of the same species. The two syntypes that I have examined are both 

 males, and they agree very closely with the " Terra Nova " specimens except for a 

 slightly greater slenderness of body and a marked increase in the relative length of the 

 second coxse. 



Austropalleiie tibicina, sp. n. (Text-figs. 7 and 8). 



Occurrence. — Station 220, off Cape Adare, 45-50 fathoms ; 3 ?, 2 c? (incl. Holotype). 



Description.— 'R&ae.Wiblmg A. brachyura in general form, but more slender and 

 with the spurs of the body and legs much larger. 



Cephalic segment nearly half the total length of the trunk, anterior dilatation 

 about two and a half times the diameter of the neck. Ocular tubercle low, obtuse, 

 much smaller in diameter than the neck, eyes well-separated, reddish. 



Lateral p)rocesses separated by intervals of at least their own diameter, the first 

 with one, the others with a pair of large distal spurs, and each also with a small 

 conical tubercle in the middle of the distal margin. The lateral processes and their 

 spurs are more elongated in the male than in the female. 



Proboscis contracted, about the middle of its length, to a slender, downwardly- 

 curved tube, with a conspicuous brush of setae on the three terminal lips. 



Abdomen relatively a little larger than in A. brachyura, directed obliquely 

 upwards. 



Chelop)hores slender, the scape more {$) or less (?) than four times as long as 

 thick, shorter than the proboscis. Chelae not more than two-thirds the length of the 

 scape, movable finger strongly arched, toothless, shorter than the palm, immovable 

 finger extending far beyond it, curved only at the tip, with two Idunt tubercles between 

 which the tip of the immovable finger fits ; both fingers sharply pointed. 



Oviger of male with fifth segment twice as long as fourth, bearing a short lateral 

 process at its distal end. 



