28 BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



GONEPLAX HIRSUTA Borradailc. 



Ooneplax hirsutus Borradaile, Brit. Antarctic {"Terra Nova") Exped., 

 1910, Zool., vol. 3, No. 2, 191G, p. 99, text-fig. 11 (type-locality, off Ilia 

 de Janeiro, 40 fathoms; types in Brit. Mus.). 



Diagnosis. — A long and dense tuft of hair on distal half of wrist 

 and base of palm. Chelipeds of male not much, if any, longer than 

 legs. Carapace widest between tips of postorbital spines. 



Pig. 7. — Goneplax hirsdta, cotype, X 2J. a. Dorsal view ; b, right chela and 



CAItPUS, OUTER VIEW. (AFTER BOKRADAILE.) 



Description. — Carapace about two-thirds as long as broad; its 

 greatest width between tips of postorbital spines; its regions faintly 

 marked except for a pronounced H-shaped depression in the middle; 

 its sides converging backward from the sharp extraorbital spines, 

 behind each of which, and nearer to it than in G. rhoinboides. 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 distal half of 

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

 of arm. 



