48 Bulletin, Vanderhilt Marine Museum, Vol. Ill 



moderately convex, as is also the distal margin, which is fringed with 

 heavy brown setae. The uropoda are very unequal, the one on the 

 right side being the smaller. The left one has the peduncle stout, 

 curved, with its posterior distal end projecting beyond the base of 

 the blade and furnished with a row of movable scales; the hinder 

 blade is short and thick, with its outer distal margin rounded and 

 set veith a band of flexible scales ; the anterior blade is twice as large 

 as the other one, stocky, with the distal margin convex and the distal 

 half of the upper blade is covered by a patch of flexible scales; its 

 outer margin is fringed with setae. 



The abdomen bears three appendages on the left side ; each of these 

 is short, two-branched, with short setae ; the first branch is little more 

 than half as long as the second branch ; on the right side there is no 

 vestige of appendage. 



The ocular scale is twice as long as wide, with the distal half of the 

 lateral margins granulate, convergent, forming a triangulate tip to 

 the scale. The eyestalk is one-half as long as the precervical portion 

 of the carapace, with the upper margin slightly rounded and the 

 inner and outer lateral faces compressed, forming a keel on the lower 

 margin. The cornea is small, shining black, terminal, with a small 

 projection of the stalk upon the dorsal surface. 



The antennulae are well developed, the basal joint bulbous proxi- 

 mally, slender distally, the second and third articles quite long, lat- 

 erally compressed, the third joint being slightly longer than the sec- 

 ond ; the larger branch of the flagellum is one-half as long as the third 

 articles and consists of 18 stocky rings, which are slightly compressed 

 laterally and are furnished with short, stiff setae ; the antennulae are 

 fused distally ; the short branch of the flagellum is but little more than 

 half as long as the larger branch and is much slenderer; each ring 

 is tipped on the inferior margin with long stiff hair. 



The antennae have the basal joint short, flattish, with the upper 

 distal end forming an obtuse point; the acicule is stocky proximally, 

 tapering distally, its tip blunt, setose, extending almost to the distal 

 margin of the second joint, which is compressed, about as wide as 

 long, its distal end reaching to the base of the cornea ; the third joint 

 is about as long as the eyestalk and is strongly compressed laterally ; 

 the flagellum is slender, consists of about 85 rings, its tip extending 

 almost to the tip of the great cheliped. 



The chelipeds are markedly unequal, the right one being small, 

 shorter and only slightly wider than the, adjacent ambulatory leg, 



