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. 

 Gvvynn Jeffreys, in from seventy to eighty fathoms, about 

 sixty miles east of the Shetland Islands. 



Q 



