100 



"TERRA NOVA" EXPEDITION. 



H -shaped depression in the middle; its sides converging backwards from the sharp 

 extraorbital spines, behind each of which, and nearer to it than in G. angulatus, stands 

 a smaller, very sharp spine. Front almost straight, with a shallow median notch, in 

 which stands a rostral prominence. Orbital margin sinuous, sloping backward ; width 

 of orbit about equal to that of front. Chelipeds almost equal, the right very slightly 

 the larger ; arm in female and (? young) male about two-thirds length of carapace, 

 deep, with a spine a little beyond middle of upper edge ; wrist about two-thirds length 

 of arm, rather broader than long ; hand longer than rest of limb ; fingers about equal 

 to palm, irregularly toothed, not gaping ; a long and dense tuft of hair on outside of 



Fig. 11. — Goneplax hirsutiis, n. sp. (a) Dorsal view, X 2|- ; 

 (&) right cheliped from outer side, X 2^. 



distal half of wrist and base of palm, and a fringe of similar hairs along inner side 

 of arm. Walking legs slender, simple, fringed with hairs, much like those of G. angu- 

 latus, but without spine on meropodite. Abdomen of (? young) male narrow, like 

 that of G. maldivensis, Eathb. 



Length of largest specimen, 13 mm. 



Two specimens (male and female) taken at Station 42. 



Family PINNOTHERIDAE. 



36. 



Fig. 12. 



Pinnotheres pisum (L.), 1766. 



Cancer pisum, Linnaeus, Syst. Nat. XII, p. 1069 (1766). 



Pinnotlieres pisum, Latreille, Hist. Nat. Crust. VI, p. 85 (1803); Leach, Malacost. Pod. Brit. 



pi. XIV (1815) ; Miers, Cat. Crust. N. Zealand, p. 48 (1876). 

 Pinnotheres mytilorum, H. Milne-Edwards, Ann. Sci. Nat. (3) XX, p. 217, pi. X, fig. 1 (1853). 



