HERMIT ( '11. 1 IIS—BENEDK T. 



453 



the latter, sometimes not to the middle of the palm. The width of the 

 palm averages a little less than one-half of its leno-th. The carpal and 

 propodal joints of the ambulatoiy legs are spiny above; the dactyls 

 are curved and twisted. 



A good description of the color can not ])e made from the speci- 

 mens at hand. Stripes of red are shown on the three distal joints 

 of the aml>ulatory legs. The upp(M- surface of the hands, near the 

 prehensile edges of the lingers and along the middle of the palm, 

 is tinged with red. The measurements of the 2i specimens gi\en 

 below will probably show the average relative measurements of the 



PAGURUS BERN'HAROrS. 



species. The carapace^ is measured from the point of the median pro- 

 jection of the front to the margin of the hardened portion; the hand 

 from the tip of the immovable linger to the middle of the margin when 

 the hand is bent downward from the carpus; the dactyl from the tip 

 to the condyle. Many of the specimens are worn. This will in part 

 account for the more slender dactyls of the ambulatory legs, as the 

 thin edges become worn in the movements of the animal over a rough 

 bottom? The fact that the lingers of the large chelipeds are worn otf 

 at the tip also reduces their length in proportion to the width of the 

 hand. 



