130 S. J. Smith on American Crustacea. 



The ambulatory legs are stout and very hairy along the edges, and 

 the meral segments are quite broad, those of the posterior pair being 

 nearly three times as long as broad. 



The abdomen is slightly narrowed at the first segment and is broad- 

 est at the second and third. The distal margin of the penultimate 

 segment is somewhat excavated for the reception of the terminal seg- 

 ment, which is much narrower than the penultimate and broadest at 

 the base, from which the margin is regularly arcuate, forming scarcely 

 more than a semicircle. 



Both in alcoholic and dry specimens the points of the articulation 

 of the merus with the cai'pus, the carpus with the propodus and the 

 propodus with the dactylus, in the larger cheliped, are marked by red 

 spots, and there are similar, but smaller, spots on the ambulatory legs, 

 at the articulation of the meral with the carpal segments. 



The females differ from the males in being narrower and more evenly 

 convex above, and in having the branchial regions more swollen and 

 thickly covered with rounded tubercles. 



A number of specimens give the following measurements : — 



This species is found at New Haven, Conn., on salt-marshes. There 

 are specimens in the collection of the Peabody Academy of Science 

 from Blufiiton, South Carolina, and also, from St. Augustine, Florida. 

 LeConte's specimens were fi-om New Jersey. 



This is a very large species and I have not seen young specimens. 

 It has perhaps been considered an adult form of G.pugnax; LeConte, 

 however, recognized it as a distinct species and pointed out the differ- 

 ences, having very naturally mistaken t\\Q pugnax for G.pugilator. The 

 tubercles on the anterior portion of the branchial region of the male 

 are probably only an adult character, but the very coarse tubercula- 

 tion of the basal portion of the propodus and the red markings on 

 the larger cheliped of the male, and the tubercular branchial regions 

 of the female, are quite enough to distinguish it from the allied 

 species. 



