150 Bulletin, Vanderhilt Marine Museum, Vol. II 



are tipped with slaty black ; the cutting edges of the fingers fit closely 

 upon each other. 



The ambulatory legs are similar, slender, subequal, compressed, 

 tapering to acuminate dactyli ; basal joints somewhat hairy ; the upper 

 longitudinal margin of merus in older specimens usually spinulose. 

 The last pair of legs is somewhat smaller than the preceding pairs. 



Synonymy. — Cancer horealis Stimpson, Ann. Lye. Nat. Hist. N. Y., 

 vol. 7, p. 50, 1859.— S. I. Smith, Kept. U. S. Fish. Comm., vol. 1, 

 p. 546, 1871-1872 (issued 1873).— Kingsley, Proc. Acad. Nat. Sci. 

 Phila., p. 317, 1878.— S. I. Smith, Proc. U. S. Nat. Mus., vol. 5, 

 p. 417, 1880 (issued 1881) ; Bull. Mus. Comp. ZooL, vol. 10, p. 5, 

 1882; Proc. U. S. Nat. Mus., vol. 6, p. 15, 1883.— Kingsley, 

 Standard Nat. Hist., vol. 11, p. 62, 1884.— Miers, Kept. ''Chal- 

 lenger" Zool., vol. 17, Brachyura, p. 110, 1886. — S. I. Smith, 

 Kept. U. S. Fish. Comm., vol. 13, p. 629, 1885 (issued 1887).— 

 Stebbing, Hist, of Kecent Crust. (Internat. Sci. Ser.), vol. 74, p. 

 59, 1893.— Faxon, Mem. Mus. Comp. ZooL, vol. 18, p. 16, 1895.— 

 M. J. Kathbun, Amer. Nat., vol. 34, p. 134. 1900. — Howe, Bull. 

 U. S. Fish. Comm., vol. 9, p. 240, 1899 (issued 1901).— Paulmier, 

 58th Ann. Kept. N. Y. State Museum, p. 139, text fig., 1904 

 (issued 1905). — M. J. Kathbun, Occas. Papers Boston Soc. Nat. 

 Hist., vol. 7, p. 10, 1905.— A. G. Mayer, Seashore Life, p. 104, fig. 

 71, 1906.— Fowler, Kept. N. J. State Museum, p. 426, pi. 133, 

 1911 (issued 1912). — Sumner, Osburn and Cole, Bull, U. S. Bur. 

 Fish., vol. 31, pt. 2, p. 672, 1911 (issued 1913).— W. P. Hay, BuU. 

 U. S. Bur. Fish., vol. 35, No. 859, p. 434, pi. 35, fig. 2, 1918. 



Cancer irroratus (in part) Say, Journ. Acad. Nat. Sci. Phila., vol. 1, 

 pt. 1, p. 59, 1817. 



Platycarcinus irroratus De Kay, N. Y. Fauna, Crust., vol. 6, p. 6, 

 1844, nee. pi. 2, fig. 2. — Gibbes, Proc. Amer. Assoc. Adv. Sci., vol. 

 3, p. 176,1850 (issued 1851). 



Cancer amaenus Herbst. 



Plate 50. 



Diagnostic characters : Carapace with nine teeth, which have the 

 margins granulate, not denticulate as in horealis; the suture lines be- 

 tween the teeth are continued onto the carapace as short, closed fis- 

 sures. Color in life yellowish, finely maculated with dark purplish- 

 brown. 



