Nkiiolls axd Barnes. — T\co New Terrestrial Isopods. 153 
The pleopods are avran^^ed in a tile-like manner. Their shape 
and pro]K)rtions can be made out most satisfactorily from the 
figures. In the male the exopodites on the first pair (of j)leopods) 
are lacking, those of the second pair (fig. lb) well formed and 
leaching practically to the end of the third pair. The third (fig. 
Ic), fourth (fig. Id) and fiftli ]>airs also have well developed 
exopodites, the fifth jiair neing similar in shape to the fourth, but 
smaller. 
The endopodites of the first ])air (fig. la) arc broad at the 
base and narrow distally, those of the second (fig. lb) very long, 
reaching almost to the end of the fifth pair of pleopods, and 
tapering to a point. The third, fourth (fig. Ic) and fifth are 
roughly triangular in shape, and l)ranchial in function. 
1)1 the female the first pair has the exopodites in the form 
ox very delicate chitinous plates. The second pair (fig. If) is Avell 
formed, the thir<l (fig. Ig), fourth (fig Ih) anil fifth, the fourtli 
and fifth being similar in shape. 
The first and second pairs (fig. If) of endo])odites are rep- 
resented by chitinous ])lates, the third to the fifth normal and 
similar in shape to those of the male. The margins of the second 
to the fifth pairs of exo})odites in both the male and female are 
fringed with setae. 
No trace of tracheae could be recognised in the exopodites 
notAvithstanding a careful examination. 
Colour, ill life, creamy Avhite Avith faint dark markings, some 
shoAving a pinkish tint. Little change occui'S in ]>reserved specimens. 
Length, of the largest specimens obtained, six millimetres. 
Habitat, Avithin tlie bark of living trees, under fallen logs 
and in decaying stumjis near the banks of hrankland Kiver, 
Nornalup, S.W. Australia. 
licmarhs. 
In its general ap])earance, Avith its strongly developed spines 
and scales and AAuth its freely projecting e}fimera C. wilsnwroi 
presents a marked resemblance to Ahermania spinosa- Collinge. A 
further resemblance is seen in the condition of the uropods of 
the two species, which while differing somcAvhat in shape ai'e at 
least unlike those structures normally present in Cuharis. The 
terminal abdominal segments of the two, also, do not differ more 
than might be expected in two different but closely related species. 
But by the possession of antennules and in tlie shape of tlie 
cephalon, C. wilsmorci is definitely excluded from the genus AJeer- 
maiiia, the cephalon is, indeed, tyx>ically cubarid. 
