110 



The first pair of legs, though apparently simple, yet when examined under 

 the microscope are found to end in a microscopic chela the fingers of which are of 

 r'./iKtl It'iifjth : it looks more like a split claw than an ordinary chela. 



The legs of the 2nd pair are equal and symmetrical : they are a little 

 shorter than those of the 1st pair and reach nearly halfway along the terminal 

 joint of the external maxillipeds : their chelae are of fair size, having the fingers 

 nearly as long as the palm. 



Of the last three pairs of legs the 3rd pair are the longest reaching 

 beyond the antennal scale by their dactylus and two-thirds of their propodite, 

 and the 5th pair are the shortest not reaching the tip of the antennal scale : in 

 all of them the posterior border of the ischium and merus is spinose and some 

 slender spinelets are to be found on the same border of the carpus and propodite. 



The protopodites of the abdominal appendages are very stout. 



In an egg-laden female the rostrum is 20 millim. long, the carapace 34 

 millim., and the abdomen 69 millim. 



Colours in life bright pink, legs crimson. The eggs are of two kinds, small 

 ones of a light brown colour, and large ones of a bright pink colour. 



From the Bay of Bengal, 1300, 1310, 1439, and 1644 fathoms. 



T> J AT 7671 6100-6106 6761-6766 



Red. NOB. -- : 



. . 



Family Psalidopodidce, Wood-Mason. 



Wood-Mason, Ann. Mag. Nat. Hist., April 1892, p. 265 : Ortmann in Bronn's Thier Reich, Malacostraca, p. 1128. 



Rostrum long, recurved. The abdomen articulates with the carapace by a 

 hinge, and the abdominal somites interarticulate by means of little shallow ball- 

 and-socket joints situated at the junction of terga and pleura. Telson long and 

 narrow. 



The antennular scale is rigid and very acute : the antennal scale is foliace- 

 ous, but narrow. Two antennular flagella. 



Mandible deeply cleft into two processes incisor and molar and furnished 

 with an incurved two-jointed palp ; the molar process is broad and strong, but 

 the incisor process is a thin flexible imperfectly-calcified plate. The exopodite 

 of the 1st maxillipeds is a simple incurved falciform plate, without a flagellum. 



The coxa and basis of the 1st maxilla are equally well developed, but the 

 coxae of the 2nd maxilla and 1st maxillipeds are small and receding. External 

 maxillipeds pediform, their two terminal segments with short stiff setas, which 

 on the last (5th) segment are so arranged as to give the segment a multiarticu- 

 late appearance. Terminal segment of the 2nd maxillipeds much as in the 

 Crangonidae. 



