1518 THE VOYAGE OF H.M.S. CHALLENGER. 



pectinate except at the upper part ; the hand a little longer than the wrist, but much 

 narrower, the hind margin finely pectinate ; the finger more than half the length of 



the hand. 



Second Gnathopods as in Eupronoe inscripta, but the wrist somewhat less bulky, 



and the finger half the length of the hand. 



First Per&opods. — First joint a little bent, proximally narrow, then somewhat 

 widened ; the third joint a little shorter than the fourth, the rounded front apex slightly 

 produced ; the fourth joint scarcely narrowed distally, the straight hind margin lightly 

 pectinate ; the fifth joint longer than the fourth, the slightly concave hiDd margin pretty 

 strongly pectinate ; the finger slender, with a bulbous hinge, nearly half as long as the 

 fifth joint. 



Second Perseopods similar to the first, but the third, fourth, and fifth joints longer, 

 the third as long as the fourth or rather longer, the fifth more slender than in the 

 preceding pair. 



Third Perseopods. — The first joint with the front margin concave at the centre, with 

 six sharp serration teeth below, the front apex rounded, not very broad, produced a little 

 below the hind margin ; the third joint longer than the fourth, pectinate along the front 

 margin, the hind margin having a slightly produced pointed apex ; the fourth joint more 

 strongly pectinate along the front, the pectination near the apex being finer than above ; 

 the fifth joint longer than the third, pectinate like the fourth, but still more strongly, 

 the hind margin ending in a slender tooth or spine ; the finger as in the preceding 

 pairs. 



Fourth Perseopods.- — The front margin of the first joint slightly concave, the hinder 



gently convex so as to give the joint a uniform breadth for more than half its length ; 



the distal margin in front, instead of sloping up to the hind margin as in Eupronoe 



pacifica, slopes downwards away from it, forming a narrow distal piece of the front below 



the hinder part of the joint ; the second joint very small, not nearly reaching the 



extremity of the first ; the third joint longer than the fourth and fifth together, the 



front margin strongly pectinate, produced nearly to the end of the trunk of the fourth 



joint, the hind margin with the apex acute, a little produced ; the fourth joint much 



shorter than the fifth, pectinate more finely than the third, and apically a little produced ; 



the pectination of the fifth joint intermediate in strength between that of the third and 



that of the fourth ; the finger a little pectinate, about half the length of the fifth joint. 



It will be seen, by a comparison of the two figures of prp*, that the produced portions 



of the third and fourth joints only come into view when the inner surface of the limb 



is under observation. 



Fifth Perseopods. — The first joint narrowly pear-shaped, the front margin nearly 

 straight, the hinder not at all apically produced ; the terminal joint narrowly oval, not 

 •juite a third as long as the first. 



