THE CRUSTACEA OF NEW JERSEY. 375 



right or longer cheliped, and peduncle of three principal joints, 

 of which basal robust, second shortest and third longest, though 

 latter extends forward well beyond peduncle of antennule. 

 Flagellum long, tapers, multiarticulate, and end filamentous. 

 Buccal mass well developed, though not very conspicuous. Man- 

 dibles firm, strong-. First maxillae laminar, rather firm, not very 

 hairy, each with small palp. Maxillipeds well developed, quite 

 hairy, second twice length of first, and both pairs with long 

 exopodites. Chelipeds enlarged, right larger, though left a little 

 over half length of right, both elongated or linear, and mostly 

 finely granulated to minutely spinescent. On lower outer edge of 

 propodus of right cheliped tubercles become a little large and 

 directed forwards. Upper edge of propodus and carpus with two 

 ridges, well separated, on propodus granulations not much en- 

 larged beyond size of those adjacent, but outer series on carpus 

 more enlarged, well spaced and somewhat spinescent. Carpus a 

 little shorter than propodus, greatest width about one and three- 

 fifths its own length. Width of propodus about two-fifths its 

 own length. D'actyls of chelipeds subequal, cutting-edges not en- 

 tirely in apposition, but leave narrow hiatus, and each with 

 several large well-developed tubercles or molar-like teeth. 

 Merus a little longer than carpus, but not equal to propodus 

 length. Large cheliped with tufts of setse within dactyl and 

 pollex edges, and other setae on lower surface of ischium. Left 

 or smaller cheliped more or less hairy. First and second pairs of 

 legs subequally large, about equal large cheliped, dactyls of 

 second pair a little the longer, and these limbs but little hairy. 

 Third and fourth pairs of legs subequal, with latter little longer, 

 much shorter than others, and dactyls of third better developed. 

 Two undeveloped appendages on left side of abdomen anteriorly, 

 subequal, and outer joint comprising at least two-thirds length of 

 each. Very small rudimentary appendage still posterior. Last 

 three terminal abdominal segments small, and pair of limbs ex- 

 tending from each side of median one, thoug-h that of left best 

 developed. Large outer and small posterior joints of these ap- 

 pendages with external posterior asperous surfaces, of which left 

 better developed. Color various, usually from dark reddish- 



