LONG-ARMED MUNIDA. 209 



long stylifonn spine, nearly half the length of the carapace; 

 at the base of the spine, and above it, immediately over the 

 inner angle of the orbit, are two smaller spines, one on each 

 side, standing directly forwards, and behind each of these 

 another still smaller. The anterior pair of feet very long, 

 being nearly four times the length of the cephalo-thorax, 

 of nearly the same size throughout their length ; the arms 

 nearly three times as long as the wrist, and, as well as the 

 wrist, armed with a series of spines on the upper and on the 

 inner surface ; the hand enlarges towards the extremity ; 

 the fingers are very slender, and longer than the hand. 

 The remaining legs are long, slender, and cylindrical. The 

 whole covered with close, very short hairs. The abdomen 

 is very convex, the second segment furnished with six, and 

 the third with four small sharp spines. 



The general colour is dull reddish yellow, with redder 

 markings. 



Length of the whole animal, from the rostrum to the tail 

 inclusive, three inches ; length of the anterior legs, nearly 

 six inches. 



This remarkable species appears to be far from common 

 on our coasts, although it is probably more numerous than 

 has been supposed, from its frequenting deep water. It was 

 found in Plymouth Sound by Mr. Prideaux ; I have re- 

 ceived it from Falmouth, through the kindness of Mr. 

 Cocks ; but it is not included in the Cornish Fauna by 

 Mr. Couch. I have it also from Zetland, where it Avas 

 taken by dredging by Mr. McAndrew and Professor E. 

 Forbes ; Pennant received it from Bamftshire, and hence 

 named it Astacus Bamffius. Mr. Thompson, in recording 

 its repeated occurrence on the coast of Ireland, establishes 

 its habitat in deep water by stating several instances of its 

 being found in the stomach of the cod ; and still more re- 



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