THE CRUSTACEA OF NEW JERSEY. 459 



outer concavity a little larger and more shallow than inner, and 

 rather narrow median projection prominently curving down, 

 Lateral superior ridges of carapace only very slightly approxi- 

 mating posteriorly. Anteriorly each lateral ridge of carapace 

 sends clown an inferior less prominent ridge on side of body 

 toward base of third pair of ambulatory legs. Area this en- 

 closes above rather coarsely granulated, and region below it 

 smooth. Body in lateral profile nearly evenly ellipsoid with 

 deepest part about two-thirds width of carapace. Eye-socket 

 elongate, deeply concave, smooth, and lower edge evenly and 

 rather finely granulated. Area between this and chela all rather 

 coarsely granulated. Eyes rounded convexly at ends, tapering 

 slightly narrowly at bases of stalks. Buccal cavity a little nar- 

 rower above, posterior width about ecjuals its length, and en- 

 tirely covered by outer maxillipeds. Chelae not longer than last 

 pair of legs, left much more developed, merus larger and tuber- 

 cular, and lower outer edges of subbasal joint rather coarsely 

 tuberculated or serrated. First three pairs of ambulatory legs 

 subequally longer than fourth pair, and second pair longest of 

 all. All well compressed, roughened somewhat along upper edges, 

 upper surfaces somewhat rugose or uneven, and all edges more 

 or less with rather long pale brown hairs, forming fringe-like 

 appearance. Telson of six free segments of which fifth deepest, 

 fourth widest, and sixth smallest. Four pairs of concealed 

 slender bifurcated appendages below each side. Color in life 

 pale sandy-brown. In alcohol the eyes become blackish, the 

 telson olive, the tissues connecting basal articulations of am- 

 bulatory legs rather deep brownish and chelse and maxillipeds 

 tinged with pale bluish. Length of carapace t,=^ mm., width 

 41 mm. 



Remarks. — The Ghost Crab is abundant along most of the 

 sandy shores of the sea. In New Jersey I have observed it at 

 Seaside Park, Atlantic City. Somer's Point, Ocean City, Beesley's 

 Point, Corson's Inlet, Sea Isle City. Avalon, Peermont, Stone 

 Harbor. Anglesea. Wildwood and Cape May. Mr. W. T. 

 Davis found small examples at Manasquan on September 

 23d, 1906. About Cape May I have also seen it near 



