PORCELLTO L,EVIS. 



ISOPODA . 

 NORM ALT A 



483 

 ONISCID^E. 



PORCELLIO L.EVIS. 



Specific cJutracter. Very convex, smooth. Lobes of the sides of the front 

 of the cephalon slightly prominent, small, and rounded at the outer angle ; 

 middle lobe very short. Terminal segment of pleon rounded at the tip, 

 deeply sulcate down the middle. Uropoda considerably elongated. 



Length, three-quarters of an inch. 



Porcellio Iceris. LATREILLE, Hist. Nat. Crust, et Ins. vii. p. 46 ; Gen. Cr. 

 et Ins. i. p. 70. LAMARCK, Anim. s. Vertebr. t. 5, 

 p. 154 (Oniscus l.~). MILNE EDWARDS, Crust, iii. 

 p. 169. KIN AH AN, Nat. Hist. Rev. vol. iv. 1857, 

 p. 278. WHITE, B. M. Cat. Brit. Crust, p. 72. Pop. 

 Hist. Brit. Crust, p. 237. JOHNSSON, Syn. Framst. 

 Sver. Onisc. p. 27. ZADDACH, Syn. Crust. Pruss. p. 13. 



Cylisticus Icevis. SCHNITZLER, Onisc. Agri Bonn. p. 25. 



THIS is the largest British species of the genus, and 

 is well distinguished by the smooth upper surface of the 

 animal, the small lateral lobes of the face, and the great 



ii 2 



