278 HGIDH, 
ISOPODA. | ZGIDA. 
NORMALIA. 
b ro 
0 
‘ if 
h : 


fEGA BICARINATA. 
Specific character. Animal depressed, terminal segment of the pleon wide 
at its extremity, bearing on its upper side two diverging carinated lines, 
which terminate at the posterior angles, the intervening space nearly straight 
or slightly emarginate. Uropoda with the inner division larger than the outer, 
truncated at the inner extremity. 
Length, 14 inch. 
Aga bicarinata. Leacu, Dictionn. Sci. Nat. xii. p. 349. DESMAREST, 
Cons. Crust. p. 305. Mrtyz Epwarps, Crust. iil. 
p. 241. Cuyrer, Régne An. (Edit. Crochard), Crust. 
t. 67, £. 2. Ratuxs, in Nov. Acta Cxs. Leop. Nat. 
Curios. vol. xx. pl. 6, f. 1—12. Wuire, B. M. 
Cat. Brit. Crust. p. 79. Pop. Hist. Brit. Crust. 
p. 251, pl. xiv. f. 5. Gossz, Man. Mar. Zool. 1, 
fig. 232. 
Tus is one of the largest species of known Isopods, 
some individuals measuring about one inch and a half in 
length. It is at once distinguished by the two elevated 
divergent lines on the terminal segment of the tail and by 
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