102 " ENDEAVOUR " SCIENTIFIC KESDLTS. 



Measurements. Male holotype, length of carapace 24.4, 

 width (approximate) between tips of lateral spines 34, 

 width just in front of lateral spines 31.3, fronto-orbital 

 width 20, front 9.3 mm. Largest specimen, male (E.4779), 

 length of carapace 27.3, width between tips of lateral 

 spines 37.4 mm. Length of carapace of a very young crab 

 (E.5196) 3.6, total width of same 4.4 mm. 



Description. Of similar appearance to the preceding 

 and at a glance might be mistaken for it. 



The chief differences are: 



The antero-lateral angle of the carapace is coincident 

 with the outer angle of the orbit, instead of being advanced 

 beyond the orbital angle to form a tooth. 



The first of the marginal teeth is less dentiform, its 

 sides at an oblique angle to each other, meeting in a short, 

 acute tip. 



The spine at the lateral angle of the carapace is directed 

 more outw r ard. 



The supra-orbital fissure is more deeply marked. 



The wrist is squarer, less elongate. 



The proximal end of the palm, opposite the carpal spine 

 is produced in a tubercle. 



The fingers are longer, slenderer and bent downward 

 beyond the lower border of the palm. In preserved speci- 

 mens they are almost colourless; only on the teeth of the 

 distal third to half is there trace of a violet brown. 



The dactyli of the ambulatory legs are almost covered 

 with dense pubescence; a thinner coating of similar hairs 

 runs along the greater part of the upper margin of the 

 propodal segments and a short way on the lower margin. 



Variations. The chelipeds become very massive with 

 age; the largest male (E.4779) lacks the major cheliped 

 but the minor one is much larger than in the type specimen 

 which has a somewhat smaller body. 



The fingers of the females (there are none of large size 

 in the collection) are little deflexed. 



A young female (E.6091), 8.7 mm. long, has the first 

 antero-lateral projection spiniform or tipped with a slender 

 spine so that it has a strong resemblance to the spine at the 

 lateral angle; the granulation of the hands is more pro- 

 nounced than in the old. 



