THE GBAPSOID CBABS OF AMEBICA. 369 



Habitat. — On sandy beaches in deep burrows, near or above high 

 tide. When pursued they run very rapidly, often suddenly stopping 

 and squatting so closely in the sand that they could easily be over- 

 looked (Verrill). They are partly nocturnal, usually remaining in 

 their burrows during the daytime, and coming out at dusk or later 

 to feed on animal refuse.^ 



Range. — From Block Island, Rhode Island, to the State of Santa 

 Catharina, Brazil. Rare east of New Jersey. Bermudas. Megalops 

 stage in Vineyard Sound, Massachusetts, and Narragansett Bay, 

 Rhode Island. 



Material e^tamined. — 



Woods Hole, Massachusetts; U. S. Fish Comm. : 4 megalops 

 (11175). August, 1885; electric light; 6 megalops (10995). 



Off Delaware, lat. 38° 25' N.; long. 72° 40' W.; surface; Sept. 21, 

 1885; U. S. Fish Comm.: 1 megalops (11128). 



Bethany Beach, Delaware ; July 4-10, 1912 ; W. D. Appel ; 6 males 

 (44571). 



Wallops Island, Virginia; May 26, 1913; U. S. Dept. Agri.; 1 

 male (45962). 



Smiths Island, Northampton County, Virginia : May 16-25, 1914 

 Chas. W. Richmond ; 3 males, 1 female, 5 y. (18287). Sept. 28, 1897 

 Chas. W. Richmond and Wm. Palmer; 5 y. (20589). August, 1909 

 J. H. Riley and E. J. Brown; 15+ specimens (39860). 1910; J. H. 

 Riley; 2 y. (41019). June, 1912: George Kitchens; 23 specimens 

 (44524). 



Willoughby Point, Virginia: May, 1880; Earll & McDonald; 3 

 males, 3 females (3879). 



Buokroe Beach, Virginia; May 5, 1898; M. C. Marsh; 5-j- speci- 

 mens (32251). 



Fort Macon, North Carolina; Oct. 7, 1904; B. W. Evermann; 1 

 male (48294). 



St. Augustine, Florida; J. C. H. Smith; 4 specimens (2008). 



East Peninsula, opposite Micco, Florida; O. Bangs; lO-f speci- 

 mens (18738). 



Indian River Inlet, Florida; Jan. 23, 1896; U. S. Fish Comm.; 

 1 female (20101). 



Loggerhead Key, Florida; Apr. 8, 1889; U. S. Fish Comm.; 2 

 males (20098). 



Marquesas Key, Florida; 1889; Grampus; 2 males (20100). 



' For <lctailed observations on the habits of this species at Tortugap, Florida, see R. P. 

 Cowles. Habits, Reactions, and Associations in Ocypoda arcnaria. Papers from Tortugas 

 Laboratory of Carnegie Institution of Washington, vol. 2, 1908, pp. 1-41, text-figs. 1-10, 

 pis. 1-4 (1 colored). 



G5863— 17 24 



