152 
Length of antennal scale, 12 mm. 
The general appearance of this species is well differentiated 
from the two preceding; from 4. pavonina it differs first in 
its greater robustness, secondly in the shape of the rostrum 
and its number of teeth, thirdly in the comparative length 
of the joints of the first pair of pereiopods, fourthly in the 
shape of the second pereiopods, which do not expand distally 
to such a degree, and fifthly in the circumstance that the 
telson ends in four spines. 
Dredged in from 10-12 fathoms, St. Vincent Gulf. 
Types in the Adelaide Museum. 
Angasia tomentosa, n. sp. Pl. xxix., figs. 1-4. 
Body less elongate than in each of the preceding species, 
rather robust, covered on all parts with a harsh tomentum. 
Carapace nearly as long as the first four segments of the 
pleon, a little elevated dorsally, anteriorly descending 
obliquely to the rostrum, deepening behind, the anterior 
margin has two small, subocular spines close together, the 
lower one more acute, the antero-lateral angle has a larger 
spine which projects further forward than the suboculars. 
The pleon is very slightly geniculated at the third seg- 
ment. The first five segments are dorsally carinate, the 
carine of the third, fourth, and fifth are posteriorly pro- 
duced to spines, the sixth segment, although the longest, is 
comparatively short, it is without carina, its postero-lateral 
margin bears a long, lobed spine projecting over the base of 
the telson, and there is a small one at the posterior angle: 
the posterior margins of the segments are well rounded be- 
low, and the fifth has a spine on the oblique margin and 
another small one below it at the angle. 
The telson is much longer than the sixth segment of the 
pleon, it is arched above, narrow, with two strong terminal 
spines, with a very small median tooth between them, it nar- 
rows rather more abruptly near the end, there is one small 
spine on each margin just above the end, and above them 
near the point of greater contraction one on each side, also 
marginal. These may be the representatives of the usual, 
quadrately placed spines, but they are not in the usual 
positions. 
The rostrum is rigid, as long as the carapace, it is a httle 
elevated distally and tapers to an acute point, its dorsal and 
lateral ridges are well marked, especially the latter, which 
extend for a short distance behind the orbits; on each side 
of the dorsal ridge there is a slight groove, a strong keel 
below bears five teeth, the more distal ones very remote; it 
is scantily setose between the teeth. 
The ophthalmopods are rather short and thick. 
