THE CRUSTACEA OF NEW JERSEY. 451 



Uca minax M. J. Rathbun, Amer. Nat., XXXIV, igoo, p. 585. Cape Cod to 



Gulf of Mexico. 

 M. J. Rathbun, Occas. Papers Boston Soc. N. Hist., VII, 1905, p. 2. 



Connecticut. 

 Mayer, Sea Shore Life, 1906, p. 107. Southern New England to 



Florida. 

 Uca sp. Fowler, Proc. Acad. Nat. Sci. Phila., 191 1, p. 3. Armstrong's Creek, 



Newcastle Co., Delaware. 



Description. — ^Carapace broad, surface rather evenly and 

 noticeably convex, smooth, narrowing moderately to posterior 

 edge. Anterior lateral angles of carapace slope convexly out- 

 wards, ridges well defined and distinct. As seen from above 

 supraorbital plate almost vertical, and scarcely or not visible. 

 Supraorbital plate narrow, surface a little convex, and greatest 

 width a little external to bases of eye-stalks. Lower margin of 

 supraorbital plate minutely granulated, and inferiorly hairy. 

 Front broad, surface nearly evenly convex, scarcely any median 

 depression evident above, and where extending forward between 

 eye-stalks with outline broadly convex. Lateral edges of front 

 widely convex, then abruptly concave and turned forward in 

 pronounced thoug'h rather broad external angle'. Lower orbital 

 edge with series of larg-e truncate tubercles, of which external 

 ones somewhat enlarged. Lower surface of body anterior to 

 chelipeds, and lateral regions above ambulatory legs, greatly 

 villose in both sexes. 



Antennules small, three-jointed, robust. Antennae with 

 large basal joint to peduncle, inner edge villose, and other 

 two joints slender, with second larger, about equal to 

 basal, in width. Flagellum slender, attenuated, shorter than 

 peduncle. Maxillipeds conceal buccal mass, of oblong form 

 when retracted. Left chelipeds usually larger, though right 

 ones often so, quite robust and enlarged. Full-grown or large 

 males with very long slender finger, dactyl being three-fourths 

 length of propodus while in smaller ones dactyl a1x)ut three- 

 fifths length of robust propodus. Propodus with lower edge 

 variously sinuate, and pollex cuiwed slightly up distally. Dac- 

 tylus with its tip extending to and usually over tip of pollex. 

 Tubercles on inner edges of fingers usually subequal. seldom 



