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vic aad PROCEEDINGS OF THE NATIONAL MUSEUM. 271 
This species approaches most nearly to sculptus, but the antero- 
lateral teeth are sharp instead of tuberculous, the carapace is invaria- 
bly wider, the ambulatory legs are less hairy, the color is cinnamon, 
while in sculptus it is sage green or bluish green. While the configura- 
tion of the carapace is very variable, in no case is the posterior half 
deeply sculptured and the anterior half smooth, as ts often the case in 
sculptus. Of the three ridges running from the antero-lateral margin 
to the cardiac region, the two anterior ones are continuous and not 
broken up by transverse grooves as in sculpts. 
Length of largest specimen, measuring between the rostral lobes, 
30.5; width, without spines, 35 millimeters, Length of three large 
males, 25; width, 29 millimeters. 
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RECORD OF SPECIMENS EXAMINED, 
Off Cape Fear, North Carolina, 15 to 17 fathoms, stations 2616, 2618, 2623; U.S. Fish 
Commission, 1885. 
South Carolina; R. Bb. Earll, U. §. Fish Commission, 1880: 
Near Charleston Harbor, 1 to 12 fathoms (3159). Fifteen miles southeast of 
Charleston (5062, 5823). 
Florida: 
Cape Florida (13928), Rodriguez Creek (16048), Eastern Dry Rocks (16049); Dr. 
E. Palmer. Indian Key (16046), Key West (16047); H. Hemphill. Sarasota 
Bay (Union College Coll.). 
Coast of Southern States; U. 8. Fish Commission, 1880 (16061). 
Bermudas; G. Brown Goode, 1876-77. 
Nassau, Bahamas; U. 8. Fish Commission, 1886; one, young (11412). 
West Indies; U. 8. Fish Commission, 1884: 
St. Thomas (16197); Curacao (16198); Old Providence (9130). 
Brazil; R. Rathbun, Hartt Explorations, 1875—77: 
Rio Formoso, Pernambuco; Plataforma, Bahia. 
This species is found also in Guiana. 
Mithrax sculptus (Lamarck). 
Maia sculpta Lamarck, Hist. Anim. sans Vert., v, p. 242, 1818; 2d ed., p. 436, 1838, 
Mithrax sculptus Milne Edwards, Mag. de Zool., 11, pl. v, 1832; Hist. Nat. des Crust., 
I, p. 322, 1834. Gibbes, Proc. Amer, Assoc. Adv. Sci., 11, p. 172, 1850. Guérin, 
La Sagra’s Hist. of Cuba, p. 11, 1856. Martens, Archiv fiir Natur., xxxvu, 
p. 83,1872. Miers, Challenger Rept., Zool., xvu1, p. 87, 1886. 
Mithraculus coronatus White, Cat. Brit. Mus. Crust., p. 7, 1847 (partim). 
_ Mithraz minutus Saussure, Mém. Soc. Phys. de Geneve, xiv, p. 425, pl. 1, fig. 1, 1857. 
(Desbonne and Schramm, Crust. de la Guadeloupe, p. 10, 1867. ) 
Mithraculus sculptus Stimpson, Amer, Jour. Sci., XX1Ix, p. 132, 1860; Ann. Lyc. Nat. 
Hist. N. Y., vu, p. 186, 1860; Bull. Mus. Comp. Zool., 11, p. 117, 1870. A. Milne 
Edwards, Miss. Sci. an Mexique, pt. 5, 1, p. 105, pl. xx, fig. 2, 1875. Miers, 
Jour. Linn, Soc. London, xiv, p. 667, 1879. Kingsley, Proc. Acad. Nat. Sci. 
Phila., xxx1, p. 389, 1879. Aurivillinus, K: Sy. Vet.-Akad. Hand., Bd. 23, 1, p. 
58, 1889. Kendall, Bull. U. 8. Fish Commission, 1x, p. 303, 1889 (1891). 
RECORD OF SPECIMENS KXAMINED. 
Florida: 
Cape Florida (18892), Cresar’s Creek (12441), Rodriguez Creek (13900), Dry 
Tortugas (13891); Dr. E. Palmer, 1884. Key Largo (14050), Indian Key 
