154 Bulletin, Vanderhilt Marine Museum, Vol. II 



The first, second and third ambulatories are long and slender, the 

 second pair being the longest of the series ; all with attenuated, taper- 

 ing dactyli. The fifth legs are shorter and have the propodus and 

 dactyl wider, subovate, with the margins ciliated. 



Synonymy. — Portunus longipes Kisso, Crust, des Environs de Nice, 

 p. 30, tab. 1, fig. 5, 1816; Hist. Nat. de I'Eur. Merid., vol. 5, p. 4, 

 1825.— Latbeille, Encycl. Meth., T. X, p. 192, 1818.— Roux, 

 Crust, de la Medit. t. IV, fig. 2, 1828.— H. Milne Edwards, Hist. 

 Nat. Crust., vol. 1, p. 455, 1834. — Bell, Brit. Stalk-eyed Crust., 

 p. 361, and text fig., 1853. — 0. Pesta, Die decapodenfauna der 

 Adria, p. 409, fig. 134 (and comprehensive synonymy), 1918. 



Subfamily : Portuninae. 



Genus: CALLINECTES Stimpson. 



Callinectes sapidus M. J. Eathbun. 



Plate 52. 



Type: Say's type was collected in "Our markets from all the bays 

 and inlets of the seacoast, ' ' and was deposited in the Academy of the 

 Philadelphia Academy of Natural Sciences. 



Distribution : Abundant on the Atlantic Coast of the United States 

 from Cape Cod, southward through the "West Indies to northern 

 Brazil. 



Material examined : One specimen from Miami, Florida, 1923. 



Technical description: Carapace elongate oval, the lateral tooth 

 sharp, prominent, distinctly up-curved and slightly forward-directed. 

 There are four frontal teeth in addition to the postorbital teeth; the 

 inner, or submedian pair of teeth are decidedly the weaker and are 

 separated from each other by a shallow sulcus; the second pair of 

 frontal teeth are separated from the inner pair by a wide, shallow, 

 U-shaped sinus and are triangulate, the apex being slightly in advance 

 of that of the more blunt, preorbital tooth. The inferior orbital tooth 

 is triangulate and is more prominent in dorsal view than the superior 

 orbital tooth. The superior orbital margin is long and bears two 

 nearly closed sinuses ; the postorbital tooth is strong, triangulate ; the 

 anterolateral margin bears eight teeth in addition to the preorbital 

 tooth ; the third to sixth teeth, inclusive, are broad, triangulate ; the 

 second tooth is similar to, but narrower than, the third tooth; the 



