ONISCUS ASELLUS. 471 
Professor Kinahan to be occasionally met with near the 
sea. 
This species is rarely found more than half an inch in 
length, but we possess a specimen, of unknown locality, 
measuring two-thirds of an inch. It is very common 
throughout England, Scotland, and Ireland, under decay- 
ing vegetable and animal matter, not only in damp, but 
in the dryest localities. It is also common near the sea. 
It was formerly used in medicine, and was supposed to 
cure agues, consumption, &c. It is commonly known 
under the vulgar names of Pig’s-louse, Sows, Woodlouse, 
Millepede, or Carpenter. 


ONISCUS FOSSOR. 
Specific character. Oval, sub-depressed, covered with numerous rough 
granulations, which give it a powdered appearance. Cephalon convex. 
Lateral lobes moderate, rounded. Frontal line produced into a triangular 
lobe. 
Length, five lines. 
Oniscus fossor. Kocu, Dtsch. Crust. h. 22, n. 22 ; and in H. Scuarrur, 
Contin. Panz. Faun. Ins. Germ. 162, fol. 22. 
Kinanan, Nat. Hist. Rev. vol. iv. 1857, p. 277, 
pl. xxi. figs. 5, 6, 7. 
Oniscus muscorum. LeREBouLLET, Mém. Strasbourg, iv. p. 29. 
Porcellio teniola. Koon, Dtsch. Crust. h. 6, n. 2; and in H. Scwarr. 
Cont. Panz. h. 139, n. 2 (var. %). 
Oniscus teniola. Ibid. h. 180, n, 20, note, and fig. 6 (var. ?). 
Tuts species so closely resembles the preceding, that 
we have not considered it necessary to give a figure of 
it, which, indeed, without colours, would scarcely show 
its chief distinction, consisting in the much more 
(ae (( 
v reo NAS, = WY. CAR Qe 
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