68 



PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxiv. 



The second article is about twice as long as the first, and is furnished 

 on the anterior margin with one long spine. The third article is 

 about as long as the second, and has two spines, one on the outer and 

 one on the inner margin. The fourth article is short, and is not 

 furnished with any spines. The last two articles of the peduncle 

 and the flagellum are missing. The mandibles have a well developed 

 palp and molar process. 



The first four segments of the thorax are about equal in length. 



The antero-lateral angles of the first segment 

 are drawn out on either side in one long, sharp 

 epimeral spine. The lateral margins of the sec- 

 ond segment are drawn out on either side in one 

 long, sharp spine and one small spine just back 

 of it, both epimeral. The lateral margins of the 

 third and fourth segments are produced on 



Fig. 2.— Eurycope trun- . 1 • n • , i • ii« i 



cata. right mandi- either side m three spines, two small spines and 

 blex51| . one long, sharp median one, a little curved an- 



teriorly. The last two spines are epimeral. The last three segments 

 have the lateral margins produced on either side in one long, sharp 

 spine directed anteriorly. The fifth and sixth segments are of nearly 

 equal length in the median dorsal line. The seventh segment is 

 nearly twice as long as either of the preceding segments. 



The abdomen is composed of one segment. Near the base of the 

 segment the lateral margin is produced on either side in one long, 

 sharp spine directed anteriorly. Below these spines 

 the lateral margins are almost straight to about the 

 middle of the segment, where there is an abrupt 

 indentation on either side. This indentation is fol- 

 lowed by two long, sharp spines, one on either side, 

 directed posteriorly. Below these two spines the 

 lateral margins slightly converge to a truncate ex- 

 tremity. Just within the two indentations of the rif . _ Kn;Y( . <MM , 

 lateral margin are indications of two tiny tubercles truncata. legof 

 on the dorsal surface. The uropods are placed on FIFTH PAIRx27j - 

 either side of the truncate extremity just beloAv the second lateral 

 spine. They are small and feeble and consist of a basal article and 

 two branches of nearly equal length. 



All the four anterior pairs of legs are missing. The three posterior 

 pairs are similar, natatory, with the merus much enlarged and both 

 the merus and propodus furnished with long, plumose hairs. 



The operculum of the female is furnished with a small spine about 

 the middle. 



