Amphipod from New Zealand. 3 



the second; secondaiy flagelluni about half as long as the 

 primaiy, and composed of three joints, while the primary 

 contains five. 



The lower antennce (fig. a.{.) have the peduncle verj stout, 

 the fourth joint slightly longer than the fifth, fully twice as 

 long as broad ; upper margin with three fine setffi, lower 

 margin with some fine setae and, in addition, six long 

 feathered setaj; fifth joint slightly shorter than the preceding 

 and considerably narrower, upper margin with several fine 

 setaj and at the distal end one long feathered seta ; lower 

 margin with three or four feathered set» near the middle and 

 one placed distally ; flagellum imperfect, apparently about as 

 long as the last joint of the peduncle. 



Mouth-parts not examined in detail. 



The first gnathopod (fig. gn. 1) has the basos very long 

 and slender, expanding slightly distally, end with two long 

 set^e ; carpus much longer than the propodos, upper margin 

 regularly convex and free from sette, lower margin sinuous, 

 slightly produced downwards, and thickly fringed with seta3 

 except near the base ; propodos narrow at base, expanded 

 distally, lower margin thickly fringed with long setee ; at the 

 base of the dactylos is a tuft of three or four long setae fully 

 tvvice as long as the dactylos ; no distinct palm visible, the 

 gnathopod being apparently simple. 



The second gnathopod (fig. gn. 2) similar in general shape 

 to the first, but somewhat longer ; propodos only about half 

 as long as the carpus, produced distally into a small tooth, 

 against which the very short dactylos impinges ; the other 

 joints and the arrangement of the set^ practically the same 

 as in the first gnathopod. 



The integument of the propodos in both gnathopods seems 

 to be very delicate and is somewhat shrivelled in my mounted 

 specimen ; hence I have not been able to make these parts 

 out as fully as 1 should like, but it is clear that the first 

 is not cludate and little, if at all, subchelate, and that the 

 second, though certainly chelate, has the dactylos so short 

 that it is very different from the well-marked chelate limb of 

 P. mirahilis. 



The first perceopod (fig. prp. 1) has the meros somewhat 

 produced at its antero-distal angle, its hinder margin with 

 three long feathered setae ; the carpus only about two thirds 

 the length of the meros, bearing posteriorly at the eni one 

 long feathered seta and two spiniform setae ; propodos rather 

 longer than the carpus, end oblique, with about six spiniform 

 setae, from which the dactylos can be distinguished only by 

 being shorter and a little stouter, 



1* 



