No. 477] RHODE ISLAND COPEPODA 



645 



E r RYTEM( )KA Gicsbrecht 



1S81. Eurutnnnra ( ;iesl)rocht. 

 1881. remorella ("laus. 



Body moderately slender, rostrum with small, soft lapjx^ts. 



Fifth thoracic se<rment free, often expanded laterally. Ahdonien 



short, scarcely lon^-er than the ceplialorlK.rax, 1^ l-jointed. WvM 

 antenna of male o-enicnlate, tenniiial portion of two ( three r) 



an.l 7-j()inte<l. Mouthparts similar to those of Tenu.ra except 

 that the posterior maxillipeds are shorter an<l stouter. Inner 

 ranuis of the first leg 1-jointed, of the second to the fonrth, 2- 

 jointed. Fifth legs of female 4-j()inted, penuhimate joint pro- 

 duced on the inside into a .strong, ])oiiited proces>; terminal joint 

 -small. Fifth legs of male 4- or o-jointed, ahout e(|nal; terminal 

 joint of right leg claw-shaped, of left, spatiilate or dilated. 



Eurytemora americana n. sp. 



Figs. S-11 



Female- -'V\w lateral amrles of the last segment of the thorax 



^^hich are di^in* t from the rounded p(..lerior .nrfacc-- of ihr m'u- 

 meut. 'rii(> win- arises from the lower two thirds ..f the ouut 

 si(h- of the M-n.ent and it^ upper edge i^ .ii-htU concaNr, au<i it. 



