OTUS CARINATUS. 
225 
is more robust than the flagellum, and about the same 
length. The inferior antennae are not longer than the 
superior, but not so stout, and terminate in a flagellum 
scarcely longer than the last joint of the peduncle. The 
mandibles are deep and narrow, and the maxillipedes are 
short, and furnished with a broad plate, reaching nearly 
as far as the finger. The first pair of legs have the 
hands with the lower distal angle produced into a sharp 
process, nearly equalling the finger in length ; the finger 
is slender, and tipped with a distinct nail, at the base of 
which arise two or three hairs. The second pair of legs 
are a little larger than the first, and have the hand some- 
what triangular in form, the palm being straight, but 
slightly oblique and distinctly pectinated ; the finger is 
sharp and curved. The coxae of the first four pairs of 
legs are deep, increasing gradually to the fourth, which 
is much broader than the others, and deeply excavated 
on the posterior margin towards its upper limits, in 
order to receive the anterior lobe of the coxa of the 
next succeeding pair of legs. All the walking legs are 
short and stout ; the thighs of the three posterior are 
broad, and posteriorly developed into two angles. The 
last pair of caudal appendages have the branches un- 
equal in length ; they are sharp, straight, and clean. The 
terminal plate is lanceolate. 
The animal was first taken by that veteran dredger, 
the late Mr. Barlee, off the Shetland Islands, two or three 
years since. During the summer of 1861 it has again 
been taken by the Rev. A. M. Norman and Mr. J. 
Gwynn Jeffreys, in from seventy to eighty fathoms, about 
sixty miles east of the Shetland Islands. 
Q 
