JHRA ALBIFRONS. 317 
ISOPODA. 
NORMALIA. 
ASELLID A. 

JHRA ALBIFRONS. 
Specific character. Subovate, very depressed, sides of the cephalon, pereion, 
and pleon margined. Colour cinereous, with the anterior margin of cephalon 
whitish. 
Length, about one-sixth of an inch. 
Oniscus albifrons. | Montaau, MSS. in Brit. Mus. 
Jera albifrons. Luacu, Edinb, Encycl. vii. p. 434. Trans. Linn. Soc. 
xi. p. 373. Suppl. Ene. Brit. i, 428. Samovexie, 
Ent. Compend. p. 110, Duxsmarzst, Cons. p. 316. 
Minyé Epwanps, Crust. iii. p. 150. W. Tompson, 
in Ann. Nat. Hist. xx. p. 245. Wuits, B. M. Cat. 
Brit. Crust. p. 69. Pop. Hist. Brit. Crust. p. 231. 
Gossr, Man. Mar. Zool. i. fig. 243. 
Jeera nivalis ? Kroyer, Grénlands Amfipod. p. 75, pl. 4, fig. 2la—k. 
Minne Epwarps, O. C. p. 149. 
Oniscus marinus? . Fasricrus, Fn. Grenl. p. 252, n. 229, 
f ~~ \ ‘7 = \ \ fay : Ay 
4 . OY IJ 4_S SL _ \ ¥ PAP ERP AAA See ek, -_ w ~ 7 
f f 
