354 MEMOIRS OF THE CARNEGIE MUSEUM 
First pereiopods comparatively short, and not very stout, considering the size of 
the species. Hand short and not very broad, depressed, elongate-ovate, stronger 
and more elongate in the male than in the female. Surface punctate. Inner mar- 
gin almost straight, with a double row of tubercles, which are more or less spiniform. 
Outer margin smooth, bluntly angular, more distinctly so distally. Fingers dis- 
tinetly longer than the palm (measured from articular tubercle on upper side of 
carpopodite to articular tubercle on upper side of palm at base of movable finger), 
straight, cutting edges straight, in contact all along their length, with a few very 
small tubercles in the proximal part, for the rest without teeth or tubercles, but 
with a short and dense pubescence, becoming slightly barbate proximally on lower 
side. Upper surface of each finger with a low longitudinal rib, most distinct dis- 
tally. Lower surface of hand almost smooth, sparsely punctate. 
Carpopodite slightly longer than wide, shorter than palm, punctate. Upper 
surface with a distinct longitudinal sulcus. Inner margin with a strong procurved 
spine in the middle, and a small spine anterior to it. Lower surface with two 
strong spines, one in the middle of the anterior margin, the other at articulation 
with hand. Sometimes there are additional small spines or spiniform tubercles, 
proximal to, or above, the large spine of the inner margin. 
Meropodite smooth, upper margin with two (rarely more, up to four) strong 
spines at a short distance from the distal end. Lower margin with two rows of 
strong spines, the inner one consisting of four to ten spines, largest distally, the 
outer one of two to three spines. A spine at the outer articulation with the 
carpopodite. 
Ischiopodite of third pereiopods hooked in the male; hook in the male of the first 
form strong, subconical. : 
Coxopodites of posterior pereiopods without prominent crests or tubercles in the 
male. 
First pleopods of male of the first form (Plate I, Fig. 5a and 5b) rather strong and 
short, not reaching beyond the anterior margin of the coxopodites of the third 
pereiopods. They are not articulated at the base, straight, and the two parts are 
separated at the tips only for a short distance. ‘Tips crossed (twisted), divergent ; 
that of the inner part is soft, gradually tapering to a point, and is directed obliquely 
outward ; that of the outer part is horny, gradually tapering toa point, and directed 
obliquely forward and slightly inward. 
In the male of the second form the first pleopods are articulated at the base 
when young, but not articulated when old, and both tips are soft ; that of the outer 
part is rather bluntly pointed. 
