300 REPORT OF NEW JERSEY STATE MUSEUM. 



U-shaped teeth. First maxillae formed of stout forwardly di- 

 rected column and posteriorly directed palp, with tuft of seven 

 or eight long setae at end, anterior ramus stout and curved toward 

 median line, with group of about eight stout curved spines at tip 

 and each with two series of fine apically directed denticuli. Brush 

 of stiff setae lies near base to side of spines, and small group 

 of spines on one face near tip, and not denticulate or with brown 

 color of those in apical group. Maxillipeds adherent basally by 

 short stout hooks, and basal joints prolonged on anterior or oral 

 aspects into plate-like processes, which coupled together in median 

 line. Each basal joint with flattened palp of four joints, and 

 terminal three with long setae. Somewhat falciform branchial 

 epipod attached to maxilliped at base by means of slender stalks. 

 First gnathopods strongly chelate in both sexes, but especially 

 in males. Thumb terminates by horny tooth, and external to and 

 just within this a sharp-edged tubercle, with tooth of dactylopo- 

 dite biting between the two. 



Limbs of first free segment of peraeon long and slender, 

 terminal claws but slightly curved. Two succeeding pairs 

 stouter, with dactylopodite and claw shorter than in first 

 pair. Last three pairs still stouter, dactylopodite bearing 

 strongly hooked claw with comb-like series of minute curved 

 teeth on each side, and distal end of propodite with row of 

 stout setae. All limbs, except those of first free segment, with 

 distal end of carpopodite crowned with few stout bifid or ser- 

 rulate spines. Only anterior three segments of pleon with 

 pleopods, each consisting of flat basal piece (protopodite) with 

 two one- jointed blades attached, furnished on outer edges with 

 long pinnate setae, exopodite bearing about thirty-five and endo- 

 podite about fifteen. Both protopodite and endopodite bear long 

 stout seta on inner edges. Uropods four-jointed, joints cylindri- 

 cal and increase in length from base to tip. Behind head body 

 width becomes gradually less with each successive segment. 

 Fourth free segment of peraeon longest, slightly exceeding third, 

 which in turn longer than fifth. Pleon formed of six distinct 

 segments, fourth and fifth much shorter than others and sixth 

 terminates behind by blunt median projection. Dorsal surface 



