106 
Niciiolls — Nctv Genus and Si)ceies of Amyliipods. 
however, tlie eyes thoiigli obviously nmcli reduced were clearly 
visiijie ill life as pinkish white patches of variable shape and size. ‘ 
I'h'oiu a dam at Katanniiig a few specimens were obtained l 
of gray green colour, apparently eyeless but with some of the ' 
a])]iendages remarkably setose. 
Hecently, Avluai Dr. Chilton’s paper came into my hands, I 
turned out my material in order to label it and I was then 
im})ress(‘d with the obvious differences exhibited by the Katanning ' 
s]'.eciin('ns. further investigation sliowed that the coloured speci- 
mens from Darlington and iMundaring -were, also, unlike in cpiite 
im])ortant characti'rs the deseriptioii given of N. icesIraHs by 
Chilton. For the purpose iff contirmation, some fresh material 
was obtained and examiiual in the living condition and it appeared 
evident that the Darlington material comprised two distinct but 
closely related species l)oth akin to the darker specimens from 
Katanning. 
(’liilton, while assigning his iii-w species 
Nf aniiilinrr/us, notes that in a number of points it departed from 
the condition shown by all of tlie Eastern Australian and Tas- 
manian forms, referred to this genus. 
The ttvo new forms, to be described below, differ in precisely 
the same way in res]iect to these same characters as well as in 
certain others not recorded for N, u'CstraJis. Accordingly I have 
decided to separate the three s])ecies in a new' genus for which 
I ])Topose the name Uroctena, having reference to the remarkable 
and distinctive comb-like seta-bei 'ing nlate on the proximal joint 
of the third uropod of the male. 
ITroctexa gen. nov. , 
Near to Neonipluirffus ( .A but with Antenna 2 in the male 
very stout and almost pediform ; side not very deep, fourth 
little <‘xcavated behind, with gnathopod 2 much larger than 
gnathopod 1, particularly in the male; accessory gills on several 
])eraeon segments. Dropod R with peduncle broad, inner ramus 
small; outer ramus moderately elongated, 2-jointcd; in the male, i 
proximal end of first joint produced into a flange-like projection 
set with numerous stout setae, forming a comb-like structure. 
With three species: — 
r. affinis sp. nov. (sp. typ.). i 
V. setosa sp. nov. : 
V. wesfralis (Chilton), Nconiphargus iv., Chilton Journ. Roy. 
Soc. W.A., Aol. 11, ]). 81-84, D12d. 
