102 



PORTUNIDvE. 



margin on each side armed with five triangular teeth, 

 slightly curved forwards and sharp pointed. The front 

 has three projecting flat teeth, of which the middle one is 

 rather the longest, and a smaller one at the outer side, and 

 a little posterior to these, over the inner angle of the orbit. 

 The orbits are large, opening forwards and upwards ; the 

 eyes large and the peduncles very short. First pair of legs 

 slightly unequal, elegantly sculptured ; the wrist having the 

 superior area granular, bounded by raised lines, of which the 

 outer one is furnished with two or three small teeth, and 

 the inner terminates anteriorly in a sharp spine ; the hand 

 has five longitudinal raised lines, which are granular, or 

 slightly denticulate, and the superior one terminates in a 

 small sharp spine over the joint of the finger ; the claws are 

 longitudinally carinated, and furnished with very distinct 

 rounded tubercles. The second, third, and fourth legs 

 are long and slender, with a double carina running along 

 the superior edge, the terminal joint very long, slender, 

 and sharp pointed. The fifth pair very much flattened, 

 the joints ciliated at the margin, and sculptured, excepting 

 the terminal one, which is flat, smooth, and oval. The 

 abdomen in both sexes has the second and third joints 

 acutely carinated transversely. That of the male is trian- 

 gular ; that of the female very broad and ciliated with 

 long hairs ; the third to the sixth joints broader than the 

 first two, the seventh abruptly narrower. 



The colour is generally a pale reddish brown ; in the 

 younger ones flesh-coloured. 



The sculpture in this species varies greatly in degree. 

 The specimen figured in Leach's Malacostraca, and which 

 may be considered as a fair representation of the ordinary 

 appearance of the adult individual, is comparatively smooth; 

 whilst a younger one, which I have from the Mediterranean, 



