i8o REPORT OF NEW JERSEY STATE MUSEUM. 



Holmes, Am. Nat., XXXVII, 1903, p. 278. Arctic America to Cape 



Hatteras. 



Holmes, Bull. Bur. Fisher., XXIV, 1904 (1905), p. 520, figs. New 



Jersey to Greenland. 



AI. J. Rathbun. Occas. Papers Boston Soc. N. Hist., VII, No. 5, 1905, 



p. 75. Bay of Fundy to Long Island Sound. 



Paulmier, 58th An. Rep. N. Y. State AIus., IV, 1904 (1906), p. 166, fig. 



36. Along the shore of New York City. 



Description. — Body rather long, slender, depressed. Cephalon 

 produced anteriorly to form an acute rostrum. Eyes rounded. 

 Antennas subequal in length, more than half length of body, with 

 long peduncles. Superior antennas with shorter, narrower pe- 

 duncle than that of the inferior antennae, and second segment 

 nearly twice length of first and third. Flagellum of superior 

 antennae much shorter than peduncle, and secondary flagellum 

 formed of four joints and shorter than last basal joint. Inferior 

 antennas very stout in adult male, base compressed laterally, 

 penultimate joint high at base, thoug-h distally tapering, armed 

 within with row of spines and sometimes an inferior lobe at 

 proximal end. Same organ also rounded anterior lobe to ante- 

 penultimate joint. Last subcylindrical or slightly tapering joint 

 much narrower though nearly long as preceding joint. Flagel- 

 lum frequently exceeds last basal joint. Inferior antennae in 

 female much more slender than those of male, scarcely com- 

 pressed laterally at bases, penultimate joint hardly tapers, and 

 flagellum and last basal joint like those of male. Anterior 

 gnathopoda very robust, form alike in both sexes, with thickened 

 basal joint excavated in front to receive carpus. Latter appears 

 to form part of hand, short. Form of hand with carpus ovoid, 

 though somewhat irregular, and at upper end of palm process 

 with stout spine. Posterior gnathopoda small, with an oblong 

 hand, broadest basally where wide as carpus, and distal end 

 tapers. Palm short, nearly transverse, with angle of hand 

 inside posteriorly produced and hind edge concave above this 

 angle. All along edges of basal joint anteriorly, and both edges 

 of carpus and hand with tufts of long setae. Last pair of paraeo- 

 poda longest, coxal plates wider than deep, and last ones with 

 posterior angle produced, like corresponding segments above. 



