864 MRS. E. W. SEXTON OX AMPIIIPODA [NoV. 2',), 



Branchial vesicles and incubatory lamellce comparatively small. 

 The large female had four eggs remaining in the incubatory pouch ; 

 the eggs very large in proportion to the animal's size, exceeding 

 in length the hand of the first gnathopod. 



Pleopods very long. All the peduncles are provided with fine 

 hairs ; coupling-spines very small, apices recurved, with 2 small 

 teeth on one side and 3 on the other. In the 1st and 2nd pairs 

 the rami are longer than the peduncle, 12-jointed ; 4 cleft spines 

 on the inner ramus of the 1st pair, 3 on the 2nd. In the 3rd 

 pair the rami are subequal in length to the peduncle, 10-jointed, 

 3 cleft spines on the inner ramus. 



Uro'pods (fig. 31). — Apices reach to nearly the same level. The 

 rami of the 1st pair are about subequal to the peduncle in length; 

 the rami of the 3rd pair twice as long as the peduncle : inner 

 rami of the 2nd and 3rd pairs longer than the outer ; all the 

 margins edged with small spines. 



Telson (figs. 31 & 32) in the female cleft for one-quarter its 

 length ; apices each with a setule inset. In the male the cleft is 

 slightly oblique, with the apices dehiscent. Just above the cleft 

 on either side, a pair of mobile plumose hairs is inset, with a few 

 scattered ones proximal ly. Chevreux first described the telson 

 as rounded, but in the later account he describes and fignn-es it 

 as cleft. 



Fam. EusiRiD^. 



For synonymy see Stebbing (40), p. 338. 



Three of the four species of Eusiridai collected by the ' Huxley ' 

 were taken in one haul at Station XII. in 246 fathoms. Two of 

 these, Eusirus hiscayensis Bonnier, and Bhachoiropis rostrata 

 Bonnier, are recorded for the first time since their discovery by 

 the ' Oaudan' Expedition in 1895. One specimen of the hitherto 

 unknown male of Eusirus hiscayensis was taken. Owing to 

 the method of capture, the Agassiz trawl, all the specimens are 

 more or less mutilated, the slender fragile pei'feopods especially 

 sufTering. The specimens of Eusirihs longipes Boeck, the fourth 

 species, taken at a much less depth, 109 fms., and by a different 

 method, are in a good state of preservation ; these were caught 

 in a tow-net attached to the dredge working on the bottom. 



Genus Eusirus Kroyer, 1845. 

 For synonymy see Stebbing (40), p. 338. 



Eusirus longipes Boeck, 1861. 

 Syn. Stebbing (40), p. 341. 



Three specimens, males, the largest measuring 8 mm., were taken 

 at Station IV. near La Chapelle Bank, 23. viii. 06, lat. 47° 48' N., 

 long. 7° 25' W., in 109 fathoms ; bottom deposit, coarse sand and 

 broken shell. 



This species has been x^ecorded twice before from the Bay of 



