TSOPODA. 



NORM ALT A. 



PORCELL10 SCABER. 



47.5 



ONISCIDjE. 



POKCELLIO SCABER. 



Specific character. Elongate -ovate, rugose. Lateral processes of the 

 cephalon very prominent, with the external angle rounded. The middle pro- 

 cess triangular. Last joint of the pleon ending in a sharp triangular point, 

 deeply sulcated down the middle. 



Length, nearly half an inch. 



Porcellio scaber. LATREILLE, Hist. Nat. Crust, et Ins. vii. p. 45. 



Gen. Cr. et Ins. i. p. 70. LEACH, in Trans. Linn. 

 Soc. xi. p. 375. Edinb. Enc. vii. p. 406. Suppl. 

 Enc. Brit. 1429. SAMOUELLE, Ent. Comp. p. 112. 

 DESMAREST, Cons. Crust, p. 321. GUERIN-MENEV. 

 Icon. R. An. Crust, t. 31, f. 7. MILNE EDWARDS, 

 Crust, iii. p. 167. CUVIER, Regne An. (Edit. 

 Crochard), t. 71, f. 1. KINAHAN, Nat. Hist. Rev. 

 vol. 4, 1857, p. 277, pi. xxi. figs. 2 and 8. KOCH, 

 in Cont. Panzer Heft. 180, n. 6 and 7. WHITE, B. 

 M. Cat. Brit. Crust, p. 72. Pop. Hist. Biit. Crust, 

 p. 237, pi. xiii. fig. 2. BRANDT and RATZEBURG, 



