( 125 ) 



pinhole foramen in the under surface of 

 the carpus of one or both chelipeds : — 



a. Entire outer surface of carpus 



of right cheliped spinose 



b. A lonsiitudinal groove on the upper 



surface of the carpus of the 

 right cheliped is always free 

 of spines _ _ 



B. Rostrum acute, prnj-cting between the bases of the 

 ophthalmic scales: right rheliped enormously 

 massive and having the wrist and hand perma- 

 nenily deflexed : peduncles of antennx as long 

 as those of the antennules _ ,^ 



III. Eyestalks not half the length of the anterior border of the 

 carapace, swollen at base but distally compressed ... 



E. nephronima. 



E. carpofordtninatus. 



E. janitor. 

 Eupagurus sp. 



I. Eupagurus pergranulatus, Henderson. Plate XI„ fig. i. 



Eupogurus pergranulatuf, Henderson, J. A. S. B., LXV., 1896, pt. 2, p. 520. III. Zool. Inves- 

 tigator, Crust., pi. xxxi., fig. 1. 



Rostrum and antennal angles of carapace broadly triangular, the latter 

 the more acute and more prominent. 



Eyestalks very stout, about as lono; as, or a little longer than, the 

 anterior border of the carapace, and longer than either the antennular or 

 antennal peduncles ; eyes large ; ophthalmic scales distant, acute. 



Antennal peduncles very little shorter than those of the antennules : 

 acicle doubly curved, reaching almost to end of peduncle, setose : flagellum 

 about twice as long as carapace, nude. 



Chelipeds setose, but not so much so as to conceal surface sculpture, 

 the right very remarkably massive. 



Right cheliped not twice the length of the carapace : merus shorter 

 than high, its irmer lower border alate and spinose, its outer lower border 

 thin prominent and spinose : carpus massive trigonal, broader than lonf^, 

 about as lung as the palm ; its upper surface studded with coarse spinules 

 which are strongest along the inner border : the palm, which ilexes vertically, 

 is broader than long, and its convex outer surface (as of the fingers also) 

 is more or less covered with crescentic granules ; its upper border is serrated, 

 and strongly overhangs the base of the d.utylus, its lower border (as of the 

 fixed finger also) is finely and very regularly milled : dactyius not quite so 

 long as the palm, shorter and narrower than the fixed finger, marked with 

 a faint median longitudinal carina on its outer surface : tips of fingers 

 calcareous. 



