CRUSTACEA WHITELEGGE. 147 



MINUTUS, sp. nov. 

 (Plate vii., fig. 4, a, b.) 



The carapace and abdomen is slightly compressed, smooth, and 

 shining. Front with a short rostrum, which is broad at the base 

 and acute at the apex. On each side of the base is situated a 

 shallow sinus, bounded externally by a minute denticle. 



The antero-lateral frontal margin is straight from the internal 

 denticle to the outer angle, which is slightly produced. The 

 inferior margin of the branchial walls forms a gentle curve from 

 the front to the rounded posterior angle. 



The peduncles of the first antennae are stout and a little longer 

 than the peduncles of the second. The first joint is gibbous in 

 the middle internally, it is longer than the second, and nearly 

 twice as long as the last, the lanceolate basal scale slightly 

 exceeds the extremity of the first joint. The flagella are ciliated 

 and subequal, the inner with a short lobe bordered by six tufts 

 of filaments. The peduncles of the second antennae as long as 

 the scale, the latter is internally ciliate and externally armed 

 with a short spine near the distal end, which however falls short 

 of the foliate apex. 



The last joint of the peduncle is very long and equal to the 

 externaUmargin of the scale, the joint bearing the antennal scale 

 has a spine on its inner distal extremity. The chelae of the first 

 pair of legs are equal. The ischium and merus are subtrigonal, 

 the former slightly longer than the carpus, the latter as long as 

 the carpus and the hand combined (fingers excluded). The 

 carpus is obconical with the distal edge smooth and even. The 

 palm of the hand is a little compressed, swollen in the middle 

 and as long as the mobile finger. An ill-defined longitudinal line 

 extends from the base of the immobile finger along the palm, 

 fading away a short distance from the proximal end. 



The fingers are sub-equal, a little curved, meeting along their 

 edges when closed, and furnished with a few tufts of hairs at 

 their extremities. The carpus of the second pair of legs is five- 

 jointed, the first is the longest, the third and fifth are equal, 

 whilst the fourth is the shortest. 



The propodal joints of the fifth pair of legs more elongate than 

 those of the third and fourth. 



The dactyli are short and slightly curved at their extremities. 



The telson is somewhat cunate, shorter than the uropoda, with 

 two spines on each side close to the margin, and four at the 

 truncated extremity, the inner pair of which are much the longest. 



The inner ramus of the caudal appendages is much narrower 

 than the outer, the latter with a broad scale-like spine at the 

 base, and three at the outer distal extremity, the median one is 



