8o 



carryiug about nine spines below the apex^ and at the apex the 

 small pointed exopod; the third joint is short, with two plumose 

 setce and three or four simple seta; on the inner margin; the 

 fourth joint is long, thickly set with spines along nnich of the 

 outer and at the apex of the inner margin ; the short hfth joip,t 

 carries two long ungues and some straight spines. 



1 he first maxillae have a rather broad inner plate surmounted 

 by numerous plumose spines or setce; within this is another plate 

 which carries a long plumose seta on the inner margin, then 

 narrows to a rounded apex set with numerous spines; close by 

 the side of it is another plate, hairy on the inner margin, and 

 distally carrying three setae; on the outer side is the longest and 

 broadest part of the maxilla, carrying three slender spin,es on a 

 projection of its outer margin near the base and a group at the 

 apex, with which is articulated a short terminal joint armed with, 

 several spines, some of them denticulate. 



The second maxillae have at least a hundred plumosie setae 

 fringing the great vibratory lamina; close to the apex of this is 

 a small plate carrying two setae, then a two-jointjed plate with 

 numerous slender spines, and to this succeeds a series of five lobes 

 variously armed, the first three having each a set of graduated 

 spines so closely placed that from one view the largest hides all 

 the rest ; on the lowest lobe there is a bunch of feathered spines. 



The maxillipeds have on the lowest lobe three plumose setae,, 

 and several shorter plumose setae or spines on the apices of the 

 next three lobes; the large sub-triangular lamina has its convex 

 outer margin fringed with numerous spines and long plumose 

 setae, of the latter the little apical lobe carrying thirteen_, the six 

 nearer the notch considerably shorter than the distal seven. 



The vermiform appendage has a head-like apex, wider than the 

 trunk, with a brush of terminally denticulate spines on each side ; 

 the mouth is formed by a rather strong tooth over a denticulate 

 margin, confronting what may be called the upper jaw, which 

 consists of a circlet of fine denticles; the annulated trunk is armed 

 far along with at least a hundred and fifty denticulate spines. 



The caudal laminae have twenty-five ungues a-piece, mone or 

 less conspicuously dentate ; the largest of all is on the apex, a 

 rather slighter one being planted close behind this a little on the 

 ventral marpfin; the apicalunoruisis foUowedby twomuchmore 

 slender ungues, then by two similar trios on a smaller scale, and 

 linally by a stout unguis heading a procession of fourteen small 

 graduated spines- In advance of the furca the margin is downy 

 for a space, and the strongly-bent part of the dorsum is trans- 

 versely corrugated, the narrowness of the numei'ous folds or^ 

 stripes producing an annulated appearance. 



As already noticed the shell surface of the preserved 

 specimens does not present an uniform texture The opaque 

 ground is everywhere beset with glossy circles in great 

 numbers, of very different sizes, though none of them are 



