106 



first two are narrow from side to side ; the third is broad- 

 est, and has three prominences, eacli bearing a few small 

 denticles ; the lateral prominences are larger than the median. 

 The two following segments are medianly prominent, and 

 the distal end of each prominence bears one or two spinules, 

 the terminal segment is rounded at the end, and bears a 

 strong median spine on the basal median elevated portion, 

 and two smaller ones close to the distal end. 



The external m.axillipeds do not completely close the 

 buccal cavity. The ischium is well produced at its internal 

 distal angle, the merus is narrower and shorter than the 

 ischium, longer than broad, rounded distally with a strong 

 spine on the inner margin, and a few spinules on its exter- 

 nal surface, the succeding joint is articulated at its summit. 

 The exopod reaches farther than the external angle of the 

 merus. 



The chelipeds are long, robust, considerably over-reach- 

 ing the rostral horns. The ischium is spinulate. The merus 

 is trigonous, reaching as far as the eyes, curved, bearing 

 a row of strong spines on the lower margin, and more 

 or less is spinulate on the internal surface; there is a large 

 forward curved spine on the upper side near the distal end. 

 The carpus is sub-cylindrical, slightly curved, and spinu- 

 late, with a large curved spine above near the proximal end. 

 The palm is tumid and bears some strong spines on the upper 

 and lower margins, otherwise it is smooth. The fingers ate 

 long, nearly as long as the palm, curved, laterally compressed, 

 slightly ridged externally, their opposable edges more or less 

 dentate and without an hiatus. 



The ambulatory legs are very long and slender, the 

 joints expanding a little distally, the meri bear distal spines 

 projecting anteriorly, the dactyli are long and nearly 

 straight till near the distal ends, bearing a few minute 

 recurved teeth — especially one close to the terminal claw — 

 and some hairs. The joints bear some scattered groups of 

 curved bristles, as is usual among these Maioid crabs. 



This species bears strong resemblances to Lisfognafhus 

 fhom,soni, Norman, as figured in the ''Challenger" report. The 

 basal antennal joint, however, is adherent, or fused, for the 

 whole of its length, and does not narrow distally. 



Length, excluding rostral horns, 6 mm. 



Breadth, Al mm. 



Length of cheliped, 8 mm. 



Length of second leg, 19 mm. 



Dredged by Dr. Verco, S.A. coast, 104 fms. 



Type (1). 



