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 
ct gi tie a third and fourth segments are produced on 
cata. Ricut manpr either side in three spines, two small spines and 
SUD COI 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 |. ,l. 0... 
lateral margin are indications of two tiny tubercles — rruncars. Lecor 
on the dorsal surface. The uropods are placed on 9 7% PA*2G- 
either side of the truncate extremity just below 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, 
