140 Addison E. Verrill, 



Third maxilliped is large and long, reaching beyond the anten- 

 nular peduncle ; basal article is very long, a little curved, and reaches 

 the end of the carpocerite ; carpal article is nearly as long as the 

 terminal one, which tapers to a spinif orm tip ; an oblique row of 

 small spinules runs back from close to the tip ; other less oblique 

 rows cross it (fig. i, mp.) ; the outer side has two or three slender 

 acute spines, a similar one is on the end of the carpus ; hairs long, 

 not numerous. 



Legs of the first pair or chelipeds are unequal in size and struc- 

 ture, though about equal in length (pi. 35, figs, id, id'). One is 

 strongly chelate (id') and is the stouter one. The chela is not 

 distinctly thicker than the merus and carpus ; it is elongated and 

 tapered from near its base, and about as long as the carpus; 

 margins of the palm are a little convex; fingers are slender, 

 incurved, acute, about equal in size; the tips cross when closed; 

 length of dactyl to palm i : 1.7; marginal hairs few; small apical 

 groups on the fingers. Carpus is longer than wide, about as i : 1.5, 

 and distally about as thick as the chela and about half as long as 

 the chela ; merus is long and stouter than the carpus ; length to 

 carpus about as 1 13.25 ; its breadth to length about i :4.6; slightly 

 swollen in the middle. The other leg of the first pair (id) is 

 rather more slender, especially the carpus and propodus, and it is 

 not chelate. The propodus tapers from the base to the narrow 

 end at the base of the dactyl, which is somewhat incurved and 

 acute, about one sixth the length of the propodus. 



Legs of the second pair (figs. le, ie') are both chelate but very 

 unequal; one (ie) is much more slender than the other (ie') and 

 has the carpus multiarticulate. Both have the chela elongated with 

 the fingers incurved, acute, and crossed when closed. The ambula- 

 tory legs (if) are long and slender, with the carpus and propodus 

 elongated and subequal; dactyl simple, long and slender, little 

 curved. 



The uropods (fig. i, g, u) are elongated; outer one is oblong, 

 obtusely rounded distally; inner one is rather wider, shorter and 

 more ovate; distal sutural spine is acute. The telson (t) is 

 narrow, elongated, regularly tapered to a narrow tip, which bears 

 three pairs of unequal spines, the intermediate pair much the 

 longer; others subequal; a minute denticle occupies the middle. 

 The four dorsal spines are relatively long and acute. 



