ANGULAR CRAB, 131 



and a smaller one behind it on the lateral margin. Front 

 entire, incurved, broad; orbits directly transverse, open 

 directly forwards ; eyes on long peduncles, and protected 

 by the latero-anterior spines. The anterior legs in the 

 male four times the length of the carapace ; those of the 

 female much shorter, as are those of the young male. The 

 arm cylindrical, curved, armed with a small spine near the 

 middle of its upper side ; a still smaller spine on the inner 

 margin of the wrist ; the hand gradually increasing in size 

 towards the extremity, rounded, somewhat flattened at 

 the sides ; fingers finely toothed, and with a few larger 

 tubercles ; in the older individuals separated for nearly 

 half their length. The remaining feet long, slender ; the 

 second and third pairs with the last three joints hairy on 

 the edges. Abdomen of the male triangular from the third 

 joint to the extremity, the last joint forming nearly an 

 equilateral triangle ; of the female broadly oval : both 

 fringed with hair. 



Colour dull yellowish red. The moveable finger, in the 

 male only, blackish. 



It was not until this species was obtained by Montagu 

 in the Estuary of Kingsbridge, Devon, that it was ascer- 

 tained to be British. Since that period it has been re- 

 peatedly taken on the southern parts of the coast. I have 

 received it through the kindness of Mr. Couch from Corn- 

 wall, and from the coast of Wales, where it was procured 

 by Mr. Eyton ; but I am not aware of its having been 

 found on the eastern coast, nor have I heard of its having 

 been taken in Scotland. In Ireland we have the following 

 records of its occurrence from Mr. W. Thompson's account 

 of the Crustacea of that portion of the kingdom. " Mr. J. 

 V. Thompson's collection contains an Irish specimen of 

 this Crab, marked ' rare.' Mr. R. Ball has found the 



K 2 



