50 RECORDS OF THE AUSTRALIAN MUSEUM. 



Superioi' surface and the upper border exhibits three or four 

 irregularly disposed spinose tubercles, internal surface and inner 

 distal margin smooth ; outer distal margin with eight or ten 

 spines. 



Hand compressed, about one third longer than deep, upper 

 border crested and bearing four or five spines, lower border thin, 

 curved, and denticulated throughout its length, the proximal 

 denticles being larger than the distal. Inner surface of palm 

 convex, centrally smooth, slightly punctate and scaly above ; with 

 a large drop-like tubercle near the lower border posteriorly, and a 

 series of small tubercles extending towards the lower finger. 

 Outer superior aspect of palm longitudinally concave, rugose and 

 slightly setose, with three or four tubercles ; central region, lower 

 surface and both fingers covered with closely arranged circular 

 granules. There is a deep broadish pit at the base of each finger, 

 and another immediately behind the interdigital space ; the lower 

 proximal portion of the palm also exhibits a depression in which 

 the granules are arranged in transverse ridges. 



Inner edge of lower finger excavated, armed with five or six 

 unequal denticles, and a broad white cusp at the extremity. 



Upper finger with a s;ranulose crest superiorly, and a strong 

 longitudinal ridge on the external surface ; inner edge with a 

 broad, acute apical cusp, and three denticles of which the proximal 

 is the largest. 



The right chelipede differs from the left in its smaller size, 

 higher crest on the hand ; and in the pits, on the palm and fingers 

 being less marked. 



Merus joint of first ambulatory leg strongly compressed about 

 twice as long as deep, with thin almost acute upper and lower 

 borders ; a small white spinule is present near the external distal 

 angle. Carpus two-thirds the length of the merus, outer surface 

 angular, inner convex, lower and upper borders somewhat rounded ; 

 the superior surface carries two spinules, one projects from the 

 distal margin, and the other is situated on the inner aspect, about 

 its own length from the median line and also from the margin. 



Propodus subcylindrical, a little shorter than the merus ; there 

 is a small spinule on the inner distal margin. Dactylus tapering, 

 slightly compressed, about equal to the carpus in length, with 

 three or four horny spinules on the lower border, and a stout 

 black spine at the extremity. Second ambulatory leg with all 

 joints more or less compressed, and shorter than those of the first. 

 The carpus lacks the prominent angle, and is proportionately much 

 deeper than that of the first leg. The dactyli have each five horny 

 spinules on the lower border ; on the left they are reduced to 

 mere rudiments. Lower borders of ambulatory legs with numerous 

 tufted setse ; on the sixth and seventh joints of the second pair 



