138 TANAIDE. 
ISOPODA. TANAIDA. 
ABERRANTIA. 

PARATANAIS FORCIPATUS. 
Specific character.—Body moderately long and slender. Pleon much longer 
than broad. Legs short. First pair of gnathopoda serrated along the inner 
margin of the digital process of the propodos; second pair of gnathopoda 
resembling, but longer than, the pereiopoda. Upper antenne much thicker 
and longer than the lower pair. ‘Tail terminated by a pair of short, double- 
branched, two-jointed filaments, setose at the tip. 
Length one line and a half. 
Tanais forcipatus, LitigEBoRG, Bidrag Isop. Tanaid. fam. p. 25. 
Tanais Savignyi. Gossp, Mar. Zool. i. fig. 246 (but not of Kroyrr, 
Nat. Hist. Tidssk. iv. pp. 168, 181, pl. xi. fig. 
1—12). 
Zeuxo Westwoodiana? Tempieron, Trans. Ent. Soc. Lond. ii. 203, pl. xviii. 
THE eyes are planted on peduncles and terminate in 
an obtusely pointed apex. The inferior antenne are 
shorter and more slender than the superior, but scarcely 
so much as represented in our figure. 
The first gnathopoda, or chelate appendages, have the 
hand armed with three or four small serratures or sharp- 
pointed denticles, situated on the distal half of the inner 
margin of the digital process of the propodos. The 
second has the hand long and slender, the finger forming 
» ArOUTRA, 
Y oT “| = 
i) | 
