410 A. E. Verrill Decapod Crustacea of Bermuda. 



area. The four antero-lateral spines arc usually all similar in si/.r. 

 simple, and mostly acute and curved forward, but tin- anterior one 

 is often a little shorter than the I'd and rather obtuse; the -_'d and ::d 

 are always acute, with the tips bent forward; the ith is often smaller 

 and more conical and less acute. The surface of the carapace and 

 chelipeds is polished and shining, with no indications of hair* or 

 granulus. 



The chelipeds of the adult males art' relatively large and st nmg, 

 subequal, with the claws gaping. The dactyl is curved, denticulate 

 only distally, with a strongly e\ca\ ate t ip, and it Lear- a si mug tooth 

 about the middle; the thumb has a broader denticulate tooth toward 

 the base. In the voung these teeth are absent. 



Figure 42. Mitln-n.i- 



side, about nat. size. 



adult male from Bermuda, under 

 Phot. A. H. Verrill. 



The carpus and chela 1 are smooth, with no tubercles except a small 

 denticle on the inside edge of the carpus ; the merits bears two 

 large acute spines on the inner margin, and about 4 or 5 much 

 smaller, obtuse ones on the outer margin ; the upper surface may 

 have a few minute ones, or in adults a row of two or three obtuse 

 ones. The ambulatory legs are rough with small short spines and 

 long unequal stiff hairs; the dactyls are strong, incurved, with sharp 

 tips; there is a prominent articular plate at the superior distal end 

 of the propodus. 



The basal antenna! plate is wide and thick, tridentate; the outer 

 tooth, which is much the largest, is broad and obtuse, its base 

 occupying about half the width of the plate; the next is not more 

 than half as large and subacute; it is separated from the still smaller 



