New Victorian Fresh-tvater Amphipoda. 57 



Neoniphargus fultoni, sp. nov. (PI. VIL). 



Similar in general features to N. spenceri, coxal-plates scarcely 

 so deep, with only a few marginal setae and no spines, the first 

 pair relatively shorter and distally narrower ; legs rather longer 

 and not so spinulose, eyes smaller and subspherical. 



Last two segments of urosome dorsally bearing a spine on each 

 side of the median line, and one or two little spinules on each of 

 the four preceding segments. Last pair of epimeral plates of 

 metasome with posterolateral angles acute, but not produced, 

 margins above with but one or two setae, ventral margins 

 nearly straight and anteriorly bearing a conspicuous submarginal 

 spine, anterior angles rather narrowly rounded. Cephalon 

 scarcely as long as the two succeeding segments combined, 

 lateral corners broadly rounded. 



Upper antennae rather more than half the length of the body, 

 peduncle with its last joint subequal in length to the preceding 

 one, flagellum nearly twice the length of peduncle, of about 18 

 articuli ; secondary appendage normal (two-jointed). Lower 

 antennae with last joint of peduncle a little shorter than the 

 preceding one, flagellum a little shorter than the two last joints 

 of peduncle combined, of about nine articuli. In the male with 

 upper and lower antennae bearing numerous calceoli. 



Gnathopoda similar in form and armature to G. australis, but 

 with hands relatively a little longer ;md the coxal-plates of first 

 pair distinctly shorter than the second, also narrower at the apex. 



Pereiopoda with last joint of each having a stout spine on the 

 Inner margin. Three last pairs long and slender, coxal-lobes 

 not bearing any stout marginal spines, penultimate considerably 

 longer than the other two, which are equal to each other ; basal 

 plates widely expanded, the last being two-thirds as wide as its 

 length. 



Terminal uropoda of similar length, but no so spinulose as in 

 N. spenceri, the outer ramus with the terminal, rudimentary 

 joint longer, and the minute scale-like inner ramus tipped with 

 one plumose setae, also on the inner margin another one. 



Telson long, deeply cleft, each piece narrow at the end, with 

 two subapical spines, and on the upper surface a few little 

 spinules. 



