THE CRUSTACEA OF NEW JERSEY. 413 



Palate smooth, or without longitudinal ridge. Superior fis- 

 sures of orbit open, V-shaped. Abdomen in male narrower than 

 in typical Portunus, not -shaped as in Callmectes. 



Related to Portunus, with which it is sometimes united. A 

 single species in our limits. 



Arenaeus cribrarius (Lamarck). 

 Plate 127. 



Portunus cribrarius Lamarck, Hist. Nat. An. Sans Vert., V, 1818, p. 259. 



Brazil. 

 Arenmis cribrarius S. L Smith, Trans. Conn. Acad., II, 1871, p. 35- New 



Jersey to Rio Janeiro. 



Kingsley, Proc. Acad. Nat. Sci. Phila., 1878, p. 320. New Jersey to 



Brazil. 



M. J. Rathbun, Anier. Nat., XXXIV, igoo, p. 139. Virginia province 



southward. 

 Neptunus (Neptunus) cribrarius Young, Stalk-Eyed Crust. W. Indies, 1900, 



p. 176. New York to Brazil. 

 Lupa maculata Say, Journ. Acad. Nat. Sci. Phila., I, pt. i, 1818, p. 445. 



(Coasts of Georgia and Florida.) 



De Kay, N. Y. Fauna, Crust, VI, 1844, P- H- (Georgia and Florida.) 



Leidy, Journ. Acad. Nat. Sci. Phila., (2) III, 1855, p. 149. Great 



Egg Harbor, N. J. 



Description. — Carapace broad, with rather even apparent con- 

 vex surface, under a lens minutely granulated, with little-marked 

 grooves, and front edge more evenly convex than hind edge. 

 Front rather narrow, not produced or not extending forward 

 far as larger anterior lateral teeth. Front with series of four 

 marginal denticles directed forward, and median incision sepa- 

 rating them into two pairs, with innermost denticle of each pair 

 largest. Notch separating inner supraorbital denticle equally 

 large as median notch, and supraorbital denticle not quite ex- 

 tended so far anterioly as innermost median denticles of front, 

 though with much wider base. Orbit rather oblong, edge as 

 seen from above with its most posterior emargination at base 

 of eye-stalk, a decided notch externally about midway in its 

 length, and still another notch on middle of outer half. Lower 



