444 



ISOPODA. 



NORM A LI A. 



ONISCID^. 



ONISOIDJS. 



^^^^■. 



LIGIA OCEANIC A. 



Specific character. Somewliat depressed, oval, cephalon transverse, 

 covered with smooth granulations. External antenn?e with the flagellum 

 fourteen-jointed, nearly glabrous. Last segment of pleon rounded posteriorly, 

 with the lateral angles projected on each side. Terminal uropoda with the 

 peduncle nearly as long as the last segment of the pleon. 



Length, about one inch. 



Oniscus oceanicus. Linn. Syst. Nat. ii. p. 1061. Pennant, Brit. 



Zool. (Edit. 1777), iv. t. 18, f. 4. 

 Ligia oceanica. Fabricius, Ent. Syst. Suppl. p. 301. Latreille, 



Hist. Nat. Crust, et Ins. vii. p. 31. Leach, 



Trans. Linn. Soc. xi. p. 374. Edinb. Enc. 



vii. p. 406. Enc. Brit. Suppl. i. p. 428. 



Samouelle, Ent. Compend. p. 111. Des- 



MAREST, Cons. Crust, p. 317, t. 49, f. 3-4. 



Roux, Crust. Mediterr. t. 13, f. 8. Milne 



Epwards, Crust, iii. p. 155. Brandt, Bull. 



Mosc. vi. p. 172. White, B. M. Cat. Brit. 



Crust, p. 71. Pop. Hist. Brit. Crust, p. 233, 



