376 PAGURIDJL. 



of the external antennae. The anterior pair of feet are 

 robust, of unequal size; the hand is oval, broader anteriorly, 

 slightly pointed at the extremity of the fingers ; the move- 

 able finger fitting the other closely ; the vt^rist subquadrate, 

 broader than it is long; the second and third pairs with 

 the penultimate joint ciliated on the inner edge. 



The body is obscurely, and the whole of the legs dis- 

 tinctly marked with alternate bands of red and blue. 



The whole of the above description is given from a 

 coloured drawing, for which I am indebted to Mr. Cocks, 

 of Falmouth, and from which also the woodcut is taken. 

 It was obtained by him at Falmouth. I have never seen 

 a specimen, but I am confident that Mr. Cocks's accuracy 

 of delineation may be implicitly relied on. 



This species may at once be distinguished from every 

 other known on our coasts. The only one to which, from 

 the form of the hands, it bears a primd-facie resemblance, 

 is P. Hyndmanni^ but from this it differs in the form of the 

 thorax, the comparative length of the internal antenna}, 

 and many less obvious characters. The distinct alternate 

 bands of blue and red render it one of the most beautiful 

 of the genus. 



