ON THE ANASPIDACEA, LIVING AND FOSSIL. 559 
The first abdominal appendage of the male possesses a 
spatulate endopodite furnished with a row of sete proximally 
on its ventral internal face, and a pad of recurved hooks 
distally. The tip of the endopodite is simple. 
The second abdominal appendage of the male possesses a 
biarticulate endopodite furnished on its internal face 
with a pad of recurved hooks. This pad is situated con- 
siderably below the joint separating the two segments of the 
endopodite. The terminal segment of the endopodite is without 
setz or spines. There isno median spine on the sternum of this 
segment. There is a row of rather long sete on the posterior 
dorsal margins of the fifth and sixth abdominal segments. 
The margin of these segments has a moniliform ornamenta- 
tion owing to the bases of the setz being raised. 
The telson has the form shown in text-figs. 830 and 33a. It 
has a row of short sete contined to the posterior border. 
The uropods have a short basal segment with a few lateral 
setee. The exopodite has three enlarged lateral spines on its 
upper external margin. The sete fringing the uropods are 
uniform in size and structure. 
The adult animal may attain two inches in length. 
The ground colour is straw yellow, but the skin contains a 
great number of black chromatophores disposed in a regular 
pattern. 
Occurrence.—In isolated pools on and near the top 
of Mount Wellington, Tasmania; in the pools of the upper 
reaches of the North West Bay River on Mount Wellington, 
above the Wellington Falls; in the tarns on Mount Field, 
on the Harz Mountains and on Mount Read, West Coast of 
Tasmania. At an elevation of 2000 to 4000 feet. 
Genus 2. Paranaspides (Smith 12). 
The first thoracic segment is longer than the two succeed- 
ing segments put together; the abdominal segments are 
much longer than the mid-thoracic segments. ‘The body has 
a distinct dorsal flexure, the first abdominal segment project- 
