& 



-^THUSA LAT7V, 



35 



slightly curvedj longitudinally grooved and ribbed, the upper edge very tsharp. 

 The last two pairs of limbs are of about an equal length, not reaching beyond 

 the distal end of the mcrus of the second pair of ambulatory appendages, 

 pubescent excepting the nail which tips their dactyli ; their propodi are 

 much shorter than the merus and not mucli longer than the carpus; dactyli 

 very short and strongly curved. The sternum is rather coarsely granulate. 

 Conspicuous red transverse bands adorn the chelipeds and first two pairs of 

 ambulatory appendages ; there are two of these bands on the merus, one on 

 the carpus, one on the propodus, and one on the dactylus. 



Dimensions of a male: length of carapace, 26.5 mm.; breadth of cara- 



margm 



between external orbital 



pace, 29.5 mm.; breadth of anterior 

 teeth, 12 mm.; length of second ambulatory appendages, 74.5 mm. (merus, 

 12 mm. ; propodus, 15.5 mm. ; dactylus, 22 mm.). 

 1/^ Station 3389. 210 fathoms. 5 males, 2 fern. 



u 



a 



66 



3391. 153 

 3396. 259 



3387. 127 



66 



CC 



u 



2 males. 



1 male. 

 1 male juv. 



In young small specimens the carapace is not so broad as in the adult (in 

 fact the length of the carapace may be equal to its breadth), the antero- 

 lateral angles do not project so far forward, and the gastric area is not so 

 deeply sunken beneath the level of the branchial 



reirions. 



^thusa lata R 



'ATIIB. 



Plate F/., Fig. 1, T^ 1\ 



Eihusalata Ratitb., Proc. U. S. Nat. Mus., XVL 258, 189:^ 

 Mhusa pubescens Fax., Bull. Mus. Comp. Zool., XXIV. IGO, 1893. 



Station 3367. 100 fathoms. 1 female. 



After examining the type specimens of JE. Ma Rathb., I am inclined to 



JE. 



o 



JE 



Jjoj. 



In the male of 



JE. 



^ j^ ,v^^^ ^/^^l.J UlUJVj 11(1,1. 



. This species was first obtained bj the " Albatross " in 1889, in the Gulf 

 of California at a depth of 14-33 fathoms. It is the Pacific representative of 



^ 



* Proc. U. S, Nat. Mus,, III. -lis, 1881 ; VI. 22, 1883. 



