CRUSTACKA — WHniiLKCiCJK. l45 



ill ;i liiri^o, acute, triaii!;uliir sjiiiic. Mei'Us joint of mitcrior ic;^ 

 as loiii^ as the caq)us aiul |)roj)odus, cylindrical Ijiit perccptiljly 

 narrowed in tlie middle, transversely dilated, and thi-ee-loljed 

 distally ; the median lobe is tipped witli a sliort spine ; a .similar 

 spine is present on the middle lobe of each succeeding pair of legs. 

 Carpus as long as the calcified portion of the tarsus, depressed 

 and nuich narrower proximally than distally, with a wide, shallow, 

 longitudinal groove above and below ; a short lateral spine is 

 present on the inner surface near the distal extremity, and there 

 are traces of a second one in the same line about the middle of 

 the joint. Propodus slender, cylindrical, increasing slightly in 

 diameter towards the extremity, about twice as long as the 

 carpus measured along the inner side. Tarsus curved, its basal 

 t,wo-thirds cylindric, the last third tapering and densely clothed 

 at the sides with short stiff setae, distally terminating in a strong, 

 acute, horny claw. 



Colour. — When alive pale olive, with red markings. In the 

 dried example the colours have faded ; the upper surface of the 

 carapace is now^ dullish red ; the lateral sides of the branchial 

 regions and the spines are more or less cream, with small red 

 spots. 



The fingers and the lower part of the hand are yaXe cream ; the 

 outer surface of the palm has a few elongate, transverse, red 

 blotches, and on the inner surface the blotches are numerous, more 

 especially on the upper half. The upper surfaces of the meral 

 and carpal joints are of varying shades of red, those of the first 

 pair being bright, deep and somewhat glossy, and dotted here and 

 there with cream colonized spots ; the second pair are similarly 

 coloured, but the surface is dull ; the succeeding pairs have a cream 

 ground, with numerous blotches and spots of red ; a few small 

 spots are also present on the propodal joints. 



The female does not differ materially from the male, the cheli- 

 pedes are, however, weaker, shorter, and the hands are much less. 



The following measurements are taken from a large adult 

 male : — 



Length of carapace 



... 140 mm 



Breadth of ,, 



... 125 „ 



Length of right chelipede 



... 227 „ 



,, ,, „ first ambulator^'- leg . . 



... 229 „ 



„ „ „ fourth „ „ .. 



... 195 „ 



;, ,, rostral spine 



... 20 „ 



„ „ larger spines of carapace .. 



... 16 „ 



Twenty-six examples of this remarkably fine species were 

 obtained, including a few young under 20 mm. in length. The 



