456 REPORT OF NEW JERSEiY STATE MUSEUM. 



superior strong ridge, at first smooth, but where it turns down 

 toward lower basal edge of pollex strongly set off by irregular 

 large tubercles. Series of small tubercles extend along upper 

 edge of inner carpal cavity in slightly curved row. Along inner 

 edge of palm at articulation of dactylus series of small tubercles, 

 internal to it and extending down on inner edge of pollex, along 

 latter of which it also continues to tip, series of large distinct 

 tubercles, most conspicuous or enlarged just below articulation 

 of dactylus. Inner surfaces of fingers mostly smooth. Upper 

 anterior portion of palm wide, largely tuberculate, and below 

 oblique ridge granular for short area, while still inferior bevelled 

 surface largely smooth. Merus and carpus elongated, rough- 

 ened on outer surfaces and more or less smooth on inner, no 

 spines along edges. Smaller cheliped elongate, fingers slightly 

 longer than palm and touching at tips. Ambulatory feet of 

 second pair longest, and with outer joints more hairy in males. 

 Abdominal segments in female two and one-half times wider 

 than in male. 



Color olivaceous largely above or on carapace. Eye-stalks 

 olive, with eyes dusky. Feet all leaden-olive, becoming pale 

 brownish on distal joints. Enlarged cheliped brownish, pale or 

 darker, often with olive or buff tints. Length of carapace i6 

 mm., breadth 24 mm. 



Remarks. — This species is distributed, like our others, along 

 the Atlantic Coast of the United States, from Cape Cod to the 

 Gulf of Mexico. This is a very common species, living along 

 the banks of our salt-water ditches, which places are often found 

 more or less honeycombed by their burrows. The burrows vary 

 in size and length, though they are generally well short of an 

 inch in diameter, while the depth may be two feet or over. 

 When leaving the burrows, as at low-water, they often move like 

 an army, and if disturbed quicken their movements in their 

 eagerness to get into the shelter of their holes. 



I have met with it at Point Pleasant, Great Bay, Absecon, 

 Atlantic City, Spray Beach on Long Island, Ocean City, Cor- 

 son's Inlet, Sea Isle City, Townsend's Inlet, Stone Harbor, 

 Grassy Sound, Cape May and Dias Creek. From many of 



