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ALPnEUS EDWABDSII ON THE COAST OE CORNWALL. 



The body is of a thickened form, much raised and inflated in 

 front or over the stomachic region ; the ringed portion is also stout, 



Alpheus Edwardsii. 

 a. Side view. b. Dorsal view. c. Frontal spines and eyes. 



d. First leg. e and/. Second and largest claw, in two aspects. 



and not very tapering. Eostrum rather longer than inAlplieus ruber 

 in proportion to the size of the creature, pointed ; a lateral spine on 

 each side, almost as long as the rostrum, and very slightly diver- 

 ging. Eyes small, m-set, and between the rostrum and lateral 

 spines. The longer antennae on a peduncle about the length of 

 the rostrum, the thread very fine. Along the middle plate of the 

 caudal portion a depression, as if it were divided ; very slight hair 

 bordering the side plates. The first or anterior leg very slender, 

 with a very small moveable finger ; the second leg having the inner 

 joint slender, the second compressed, small ; the hand large, wide, 

 stout, but much less massive than in A. ruber ; the finger stout, 

 and not long. The hindmost leg long, slight, and feeble. The 

 left hand in both specimens the larger ; the right corresponding 

 hand small. Colour of the larger example a beautiful reddish- 

 orange, dark on the region of the stomach; of the smaller 

 specimen pale white. It appears to be the habit of this species, 

 as of the A. ruber, so to gather up and place its first and slen- 

 derer pair of claw-legs as if they were situated behind the second 

 or larger pair, — a circumstance which appears to have misled some 

 naturalists into the opinion that the larger legs were truly the 

 first in order. 



