27 



with AV mm-li longer tinin A'., the former with six long bristles 

 on the first segment, and seven and six bristles on the distal segment AV very 

 indistinctly segmented, tin- proximal joint very elongated. 



Mandibles with /.'/ longer than AV, B2 with one marginal bristle, masticatory 

 plate broad, with one rather large tooth and a good space between it and the next 

 five conical short tooth 



Maxilla witii /'_' and Ri lient outwards; B2, lii, and fie coalesced and almost 

 indistinguishable ; /.< 1 with seven rather long and stout hooks and two shorter 

 l.ii-' / _' :i large loin? with three bristles, Li 2 with one bristle; A'/ indistinctly 

 segnu nii'<l <>n the outer margin with five apical bristles; /fc scarcely segmented, with 

 i.iiK two bristles; Lei with seven long and very thick bristles, and three shorter 

 brisi 



Anterior foot jaws with lotas much compressed, and terminal five bristles longer 

 than the proximal and also much thicker. 



Posterior foot jaw very similar to that of Anomalocera. B 2 is short, but rather 

 thick, and with one short bristle ; Ri short, unsegmented, with only three terminal 

 and short bristles. 



One to four pairs of feet, with Ri of only two, Re of three segments. In the first 

 pair the external marginal setae of Re are long and thin, in the others the external 

 spines are short, and in all there is only one marginal spine (apical) on Rf 3. 



First pair of feet, // 1 and B 2 with only slightly convex inner margin and no Si. 

 Rf I longer than AV 2 + AV 3, outside margin haired and long marginal bristle. Re 2 

 and Re 3 with similarly long marginal bristles. Se = 1:1:2 and Si = 1:1:5. Ri2 

 nearly twice as long as Ri 1 and with 5 Si. 



In the second pair B 2 is broader than long, the inner margin convex and without 

 hairs or bristles ; D 1 is also without Si. Ri 1 prolonged, Ri 2 shorter (as 7:10). Ri I 

 with 2 Si, Ri 2 with 7 Si. 



Re 1 : 2 : 3 as 1 1 : 6 : 9, with respectively 1:1:1: 6V, that of AV 1 the largest and 

 of /.' 3 the smallest ; the end saw about two-thirds as long as the whole AV ; a small 

 curved spine distal margin of AV 3 just external to the saw. 5 Si on Re 3. 



3rd feet B 1 and B 2 without bristles or hairs, Ri as in the preceding pair, Re 

 as in the preceding pair and with 1 : 1 : 1 Se only. 



4th feet B 1 and B 2 as before. Ri 1 with three Si, Ri 2 with only six Si The 

 three joints of Re rather more equal in length, Sf 1 : 1 : 1 as in the other feet Ri 1 is 

 more elongated than in the other feet and twice as long as Ri 2. 



In the second to fourth pairs the Ri is more than half as long as the Re and 

 extends beyond the distal margin of Re 2. In all feet the number of external marginal 

 spines is certainly peculiar, the usual rule being three marginal spines on the Re 3, so 

 that the animal differs from any true Lnbidocera. 



The 5th feet consist of a common Iwisal and one ramns on each side of two 

 segments B2 and AV. A'i represented only by a spine. The first and second baxnls arc 



VOL. IT. N 



