988 THE VOYAGE OF H.M.S. CHALLENGER. 



maro-in deeply cut ; the fifth joint with two rows of spines, but so far as observed without 



setae. 



Uropods. — Peduncles of the first pair scarcely longer than the rami, apically acute 

 within, and on the outer side having a broad apical spine, the rami subequal, the inner 

 perhaps a little the longer, with fewer and stronger marginal spines ; the peduncles of 

 the second pair not reaching back quite so far as those of the first, scarcely so long as the 

 inner ramus ; the outer ramus shorter than the inner, with the marginal spines less strong, 

 its upper surface more deeply channelled ; peduncles of the third pair not so long as the 

 rami, reaching beyond the other two pairs with almost their whole length ; the rami 

 broad, lanceolate, reaching back beyond the other pairs, spined on both margins, which 

 are partially pectinate, especially the inner edge of the outer ramus, which is rather 

 shorter and narrower than the inner. 



Telson long and narrow, reaching a little beyond the peduncles of the third uropods, 

 cleft nearly to the base, the apices double, the outer point of each produced much beyond 

 the inner, the spine inserted between them reaching beyond the outer point. 



Length. — The specimen, in the position figured, measured, in a straight line from the 

 rostrum to the apex of the third uropods, three-fifths of an inch. 



Locality.— At Station 162, off East Moncceur Island, April 2, 1874; lat. 39° 10' 30" 

 S., long. 146° 37' 0" E. ; depth, 38 fathoms; bottom, sand and shells. One specimen, 

 female. 



Remark. — The specific name is given in compliment to Mr. Haswell, who has 

 described and figured this species from Tasmania and Port Jackson, calling it Eusirus 

 dubius, but as there is in fact no doubt whatever that it belongs to the genus Liljeborgia, 

 the specific name dubius must be sacrificed in spite of its priority. 



Liljeborgia wquabilis, n. sp. (not figured). 



The specimen on which this species is founded was taken together with Liljeborgia 

 haswelli, and bore so great a general resemblance to it that it was dissected as a variety, 

 before any figure of the animal had been drawn. It appeared to be without dorsal teeth, 

 but some small ones may have escaped observation ; the third, fourth, and fifth segments 

 of the pleon were compressed, but scarcely carinate ; the postero-lateral augles of the 

 first three segments of the pleon were produced in small sharp points ; the third segment 

 was lobed at the upper part of the hind margin. 



Lyes large, w T ith very numerous small ocelli, very dark in the specimen preserved in 

 spirits. 



Upper Antennm with a broad tapering flagellum of twenty-three joints, the secondary 

 Hagellum of thirteen, together equal in length to eleven or twelve of the primary. 



