208 Rev. T. R. R. Stebbing on 
the hand, but nearly as broad. The large and very broad 
hand has some small groups of sete on its inner surface, on 
the hind margin, and near the palm, but none are very 
conspicuous. ‘The palm has a deep narrow cleft between a 
broad inner and a long and narrow outer tooth. Beyond the 
latter, which is much longer than the corresponding tooth in 
Lembos longipes, the denticulate finger projects a little. The 
varying shape of this palm in different species of the genus will 
not easily be appreciated without comparison either of speci- 
mens or of figures. In the female the first joint is neither 
broad nor ornamented with sete, and the palm has a compara- 
tively small triangular indentation. The hand is much longer 
and slightly broader than the wrist, both being much broader 
than the second joint. 
Second Gnathopod.—In the male the second joint is 
expanded, as in Microdeutopus gryllotalpa, Costa, oval, 
very nearly as broad as the side-plate, which is of about equal 
length and depth. The wrist is longer and broader than the 
hand, and has numerous groups of sete adjoining each 
margin, those near the apices being the longest, the subapical 
of the hind margin curving towards and reaching beyond the 
hind margin of the hand. The hand has the front and hind 
margins nearly parallel, the sete projecting from the former 
being very numerous and long, those of the latter forming six 
small groups of moderate length. The finger is small, 
curved, with its apex bending over beyond the palm. In the 
female none of the joints are broad; their relative lengths are 
about the same as in the male, but the hand is a little longer 
as compared with the wrist, neither of these joints having 
the front margin conspicuously setiferous except that the 
wrist has a bunch of long setze at the apex; the hind margins 
are furnished as in the other sex; the finger does not reach 
beyond the palm. 
First and Second Perewopods.—The two pairs are alike. 
In the male the large fourth joint in each is thickly clothed 
on both sides with long unfeathered sete. The sixth joint 
has the front margin very convex. The finger is tolerably 
long, with the opening for the glandular secretion at a little 
distance from its apex. In the female the fourth joint has no 
conspicuous armature in either pair. All the marsupial plates 
are oval. 
Third Pereopod.—The fourth joint has a spine at the apex 
of the hind margin ; the fifth has two in this position and two 
on its inner surface ; the sixth joint is twisted round, so that 
the short finger points backward instead of forward. 
Fourth Perwopod.—The second joint carries several groups 
