274 STALK-EYED CRUSTACEA 



4. Gelasimus pug-illator. 



Gclasimus pugillatoi- . Kingsley, Latreille, Desmarest, 



Milne Edwards, Smith. 

 Gelasimus vocnns . . Gould, Dekay. 

 Ocypoda pugillator . Bosc, Say. 



Carapace polished, swollen, nearly quadrate. Fourth 

 joint of large hand with the outer surface rugose, upper 

 and lower margins crenulate ; fifth joint granulate ex- 

 ternally, its inner margin acute ; hand inflated, the basal 

 portion granulate and margined above and below ; inner 

 surface rounded, granulate, but without any trace of a 

 tuberculate ridge except one formed by a continuation 

 of the inner margin of the fixed finger. The fixed finger 

 is nearly straight, a ridge on the outer surface, a large 

 tubercle near the middle of the inner margin, the extremity 

 obliquely truncate. The movable finger is longer than 

 the fixed finger, regularly tapering and distally strongly 

 arcuate, meeting its companion only near its tip when 

 closed. Front broad between orbits. 



Range. — New Jersey, Manatu River, Mauritius, 

 Greenpoint, Boston Harbour, Florida, Savannah, North 

 Carolina, New Haven, South Carolina, Cayenne. 



Family IV. Grapsidae. 

 GrapsidcE .... Miers, Dana, Kingsle}'. 



^ ^ . ,. ^ '\ . Milne Edwards. 

 Grapsoidiens J 



Carapace subquadrate, depressed. Front usually 

 broad, never very narrow. Eyes short ; orbits and eye- 

 peduncles of moderate size. Epistome short, sometimes 

 linear. Fourth joint of the external maxillipedes has the 



