THE CRUSTACEA OF NEW JERSEY. 201 



of spines between which dactyl closes. First uropods project 

 beyond second and third peduncle slender, much longer than 

 rami. Inner edge of peduncle of second uropods with acute 

 serrations. Edges of rami of second and third uropods acutely 

 serrate, serr^e larger on inner rami. Third uropods with sub- 

 conic ramus, curved, shorter than peduncle and two or three 

 short spines at tip. Telson emarginate, lobes armed with num- 

 erous ver}^ short hook-like spines. Color? Length 6 mm. 



(Holmes. ) 

 Remarks. — Known from our limits according to Holmes, 

 who mentions it from Great Egg Harbor. 



Genus AMPITHOE Leach. 



AmpitJioe Leach, Edinburgh Encyclop., 1813-14, p. 402. T\-pe Cancer Gajii- 

 marus rnhricata Montagu, monotypic.^ (Not consuUed. ) 



Amphithoc, Aiiiphitoe, Ainpliithoc, Anipliitcc, auct. 



Cyvtadusa Savigny, Mem. An. Sans Vert,, L 1816, p. 109. Type Cyinadusa 

 iilosa Savigny, monotypic. 



Anisopus (nee Meigen 1S03, Serv. 1835, Haan 1835) Templeton, Trans. 

 Entom. Soc. London, I, 1836, pt. 3, p. 185. Type Anisopus dubiiis 

 Templeton, monotypic. 



Pleonexes Bate, Ann. Mag. Nat. Hist. London, (2) XIX, 1857, p. 147. Type 

 Pleonexes gammaroides Bate, monotypic. 



Sunampliitoe Bate, 1. c. Type Sunamphitoe hamulus Bate, first species, desig- 

 nated by Boeck, Skand. Ark. Amphipoder, 1878, p. 593. 



SunampJiiihoe, Syiia)iipliithoc, auct. 



Body slender, compressed, coxal plates of moderate size and 

 closely contiguous, fifth pair with anterior lobe very large, form- 

 ing together with preceding pairs a continuous series. Cephalon 

 rather deep, with frontal part but little produced. Eyes small, 

 but distinct. Superior antennae without any accessory append- 

 age and usually longer than inferior, and latter much stronger 

 in male than in female. Buccal area strongly prominent. An- 

 terior lip rounded, and posterior lip with outer lobes bifid at 

 tip. Mandibles very strong, with cutting-edge coarsely dentate. 

 palp comparatively short with terminal joint large and ex- 

 panded, and densely setous both at tip and inner edge. First 



^ Leach, 1. c, Am. Ed., VIL 1815, p. 241. 



