136 Canon A.M. Norman on British AmpMpoda. 



propodos as long as carpus and narrower at tlie base than the 

 extremity of carpus, one and half times as long as greatest 

 breadth, widest near the base, thence with slightly convex 

 margins evenly tapering to the extremity ; anterior margin 

 bearing about four slender spines ; posterior margin serrated 

 throughout, and bearing five or six long slender spines ; nail 

 equalling rather more than one-third the length of the hand, 

 slightly serrulated quite at the base. 



Second gnathopods with carpus and manus subequal in 

 length, the length of neither exceeding two and a half times 

 the breadth, each widest at their junction with the other, the 

 former widening slightly distally to receive the latter; carpus 

 with two or three small setee on anterior border and two 

 distal setse ; hand tapering from the base to the extremity, 

 where it is just wide enough to receive the nail; anterior 

 margin with three spines and two distal ones ; posterior 

 margin minutely serrulated throughout, with three slender 

 spines about the middle and two distal spines ; nail nearly 

 straight, one-third as long as the hand, with finely serrated 

 edge. 



First perceopods with the hand longer than the wrist, inner 

 margin of each with five or six small spines at about equal 

 distance from each other ; outer margin naked ; nail long and 

 slender, about one-fourth the lengtii of the hand. 



Hinder perceopods with the hand somewhat longer than the 

 wrist ; the curved dactylus and its sheath as usual in the 

 genus. 



Tehon equals two-thirds the length of the basal joint of the 

 last uropods ; these latter with the brairches narrowly lanceo- 

 late, the branches of the second pair still narrower. 



This appears to diflfer from all described species. The 

 first gnathopods in their less expanded wrist and propor- 

 tionately longer hand differ from most species, but approach 

 Bovallius's figure of Z. /'e/z/ict (if the hand were a little longer 

 in that species) ; the second gnathopods are most like those 

 of L. Say ana. Bovallius does not mention or figure in any 

 species the serration of the margin of hand and finger in this 

 gnathopod, and Lanceola Loveni is the only species in which 

 serration of margin of first gnathopods is recorded. The 

 telson and uropods are nearly as in L. serrata. L. pacijica, 

 Stebbing (' Challenger '), comes nearest to L. Murrayi as 

 regards the gnathopods, but the telson and uropods are quite 

 different. 



A single specimen taken by tow-net sunk to 640 fathoms in 

 the Faroe Channel : 'Triton,' 1882, Stat. 8 {Murray).] 



