THE GBAPSOID CRABS OF AMERICA. 153 



panded at the middle, is bent in the form of a semicircle, so that both 

 extremities project to the surface of the mud " (Stimpson). 



Range. Wellfleet, Massachusetts, to Rio Grande do Sul, Brazil 

 (Moreira). 



Material examined. 



Wellfleet, Massachusetts; 1879; H. E. Webster; 3 males, 3 females 

 (1880S). 



Woods Hole, Massachusetts ; U. S. Fish Comm. : Mar., 1882 ; V. N. 

 Edwards; 6 males, C females (5043). Aug. 31, 1883; 2 males, 1 

 female ovig. (5812). In tubes of Chaetopterus pergamentaceus; 

 Dec., 1882; V. N. Edwards; 24 males, 17 females (5824). Dredged; 

 Nov. 17, 1884; V. N. Edwards; 1 male, 2 females (14455). 1875; 3 

 males, 3 females (19085). Mar. 28, 1888; V. N. Edwards; 1 male, 1 

 female (2G105). Aug. 12, 1882; 1 female ovig. (31482). Aug., 1880; 

 1 male (3C313). 



Naushon Island, Massachusetts; U. S. Fish Comm.: In tube of 

 C. pergamentaceus; 1882; 1 male, soft shell (341G8). Shore; Aug. 

 81, 1882; 1 male, 1 female, with Vesicularia attached (38293). July 

 28, 1881; 1 male (40798). Aug. 10, 1882; 4 males, 1 female ovig. 

 (40814). 



Vineyard Sound, Massachusetts ; U. S. Fish Comm. : In tubes of 

 C. pergamentaceus,' 1885; V. N. Edwards; 3 males, 4 females ovig. 

 (10727). Aug. 1, 1886; 1 female ovig. (48434). 



Quissett, Massachusetts; 3-5 fathoms; Sept. 3, 1882; U. S. Fish 

 Comm.; 2 males (34188). 



Buzzards Bay, Massachusetts; U. S. Fish Comm.: 8J fathoms; 

 br. M. ; temp. G6 F. ; Aug. 26, 1881 ; station 963 ; steamer Fish Hawk; 

 1 female ovig. (34057). 1875; 3 males, 2 females (35308). From 

 West Island to north end of Woods Hole ; 5-7 fathoms ; bk. M. Sh. 

 G.; temp. 71.1 F.; Aug. 15, 1887; stations 1211-1221; steamer Fish 

 Hawk; 5 males, 5 females (12794). 



Beaufort, North Carolina; in tubes of Chaetopterus; June 29, 

 1888; E. A. Andrews; 1 male, 1 female (18289). 



Tangier Sound, South Carolina ; 2-} fathoms ; stky. ; temp. 70 P. ; 

 June 4, 1891; station 1651; steamer Fish Hawk; 1 female (18212). 



Punta Rassa. Florida; 1 fathom; Feb., 1884; H. Hemphill; 2 fe- 

 males young (23392). 



Chandeleur Islands, Louisiana; L. R. Gary; 1 male, 1 female 

 (33116). 



Rio de Janeiro, Brazil; Kr0yer; from Zool. Mus. Copenhagen; 1 

 female ovig. (31508). 



Remarks. The ovigerous female from Rio de Janeiro is only 7 

 mm. wide, the posterior margin (4 mm.) is wider than in typical 

 specimens, the cardiac crest is a little weak; nevertheless I think this 

 is a chaetopterana. 



