PORCELLIO ARMADILLOIDES. 485 
ISOPODA. ONISCID &. 
NORMALIA, 

PORCELLIO ARMADILLOIDES., 
Specific character. Hlongate-elliptical. Segments very convex and smooth. 
Lateral lobes of the front of the cephalon minute, obliquely truncated in 
front. Central lobe very short, angular, and acute. Terminal segment of 
the pleon acute, flat above, or slightly convex. 
Length, half an inch. 
Porcellio armadilloides. LeREBouLLET, Mem. Soc. Nat. Hist. Strasbourg, 
iv. 1853. Krnanan, Dublin Nat. Hist. Rev. iv. 
185%, p:. 209. 
Oniscus convexus. DE GEER, Mem, Ins. vii. p. 553, pl. 35, f. 11. 
JoHNSSON, Syn. Frams. Sver. Onise. p. 32. 
Oniscus saxatilis. HARTMANN, 
TuIs species is well distinguished by its narrow and 
almost cylindrical form, reminding the observer strongly 
of the species of the genus Armadillo. The lobes of the 
head are but slightly developed, the lateral ones having a 
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1ObhAnae ou rs \Soa” — \_,. 
