452 ONISCIDA. 
ISOPODA. ONISCIDZ. 
NORMALIA. 





* 
N 
PHILOSCIA COUCHII. 
Specific character. Smooth and glossy. Front of the cephalon nearly 
straight. Terminal segment of the pleon linear-triangular, with the apex 
obtusely truncate, armed with bristles, the sides slightly excavated. Outer 
ramus of the uropoda subulate-falciform ; the inner not more than one-fourth 
of the length of the former. 
Length, one-fourth of an inch. 
Philoscia Couchti. Kinanan, Nat. Hist. Rev. vol. v. 1858, p. 195, pl. 23, 
fig. 4. 
THIs species was first described by the late Professor 
Kinahan, who gave the following characters of it :—‘ Body 
smooth, elliptical. Head somewhat rounded, nearly 
straight across the front; beneath the orbits is a small 
lobe arising from superior margin of the antennal ring.* 
Internal antennze inconspicuous; external antenne hairy. 
Tige (flagellum) long and narrow. Abdomen (tail) nar- 
rower than the cephalo-thorax (body). Telson (last seg- 
ment) narrow, linearly triangular; apex rounded and 
* **In the new species the frontal border of the carapace (cephalon) is 
carried well forward, and passes down to the antennz, the superior antennal 
ring having its margin produced into a minute lobe beneath the orbit. This 
species fully proves the judiciousness of the separation of Philoscia from 
Oniscus.” 
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