Munna from New Zealand. 3 
times the greatest breadth. Head not broader than the first 
segment of pereion, deeply notched on each side for the bases 
of the antenne, produced anteriorly between the antenne ; 
front margin straight, with rounded upper lip attached. The 
lateral portion behind the insertion of the antennee with the 
anterior angle somewhat acute, the posterior angle rounded, 
somewhat produced, and bearing the moderately-sized eyes. 
First four segments of the pereion subequal in length, grad- 
ually increasing in width up to the fourth, which is the 
widest; next three segments subequal and slightly shorter 
than the preceding, curving slightly backwards at the sides. 
All the segments having the lateral margins straight or 
slightly rounded. Pleon as long as the four preceding 
segments of the thorax, pear-shaped, narrowing posteriorly, 
extremity rounded. 
Antennules with the first two joints stout, others slender, . 
reaching a little beyond the end of the third joint of the 
antenne. Antenne considerably longer than the body. 
First pair of legs very large and strong and of peculiar shape, . 
the ischios being very thick and strong and hollowed ante- 
riorly to receive the distal part of the limb when bent back ; 
carpus expanding distally, mallet-shaped at the end; pro- 
podos small and rounded. Succeeding legs of usual shape, 
the last three pairs longer than the others, about as long as 
the body. 
Female with the body of the same shape as in the male ; 
differs from the male in the first pair of appendages of the 
pereion, which are short and imperfectly subchelate ; carpus 
broader than the propodos, having the inner edge armed with 
six strong spiniform sete. 
Colour brownish, more or less closely covered with darker 
dots and stellate markings. 
Length of body of largest specimens about 3 millim. 
Hab. Port Chalmers and Brighton, New Zealand, between 
tide-marks. 
Remarks.—In the shape of the body and in the fact that 
the male and the female have the body of the same form, this 
species appears to resemble M. maculata, Beddard, but the 
form of the first pair of legs is evidently very different; it 
also differs in the antennules and in other points. It seems 
to be quite different from M. pallida, Beddard. 
Detailed Description. 
The head (PI. I. figs. 1 and 3) is broad, about twice as 
broad as long, and longer than the two succeeding segments 
1# 
