480 



ONISCID/E. 



fSOPODA. 



NORMALIA. 



ONISCID^E. 



PORCELL1O PICTUS. 



Specific character. Slightly elongated, moderately granulated, upper sur- 

 face glossy. Lateral lobes of the cephalon very prominent, curved outwards and 

 downwards ; the median lobe small and curvilinear. Terminal segment of 

 the pleon triangular, acute at the apex, sulcated above. 



Length, about one-third of an inch. 



Pwcellio pictus. BRANDT and RATZEBURG, Arzne-thiere, ii. pi. 12, 



f. 5. Gonspect. Mon. Onisc. Bull. Mosc. vi. 

 p. 176. MILNE EDWARDS, Crust, iii. 166. 

 KINAHAN, Dublin Nat. Hist. Rev. vol. 4, 1857, 

 p. 278. JOHNSSON, Syn. Framst. Sver. Onisc. 

 p. 22. BURGERSDIJK, Annot. p. 46. 



KOCH, Cont. Panz. Heft. 180, n. 18. 



KOCH, Cont. Panz. Heft. 180, n. 19. 



KOCH, Cont. Panz. Heft. 180, n. 17. ZADDACH, 



Syn. Crust. Pruss. p. 12 (?). 

 Porcellio melanocephalus. SCHNITZLER, Onisc. Bonn. p. 24 (and KOCH ?). 



(Var.) P. serialis. 

 (Var.) P. crassicornis. 

 (Var. ?) P. conspersus. 



FINELY-MARKED specimens of this species are amongst 

 the handsomest of the British Isopods. The general 



