176 BULLETIN OF THE 
notch); the carapace and chelipeds are less setose than in P. panamensis, 
the anterior margin of the carpus not prominently toothed, and there is a 
strong protuberance near the middle of the upper surface of the propodus. In 
P. tuberculipes Lockington, the central part of the front is triangular and 
deeply furrowed along the median line, the chelipeds and ambulatory legs are 
knobbed so as to present “a mass of tubercles above.” P. panamensis appears 
to be near P. barbatus A. Milne Edwards, from the Azores, but in the latter 
species the front is broader and the carpus more denticulated. 
Family GALATEIDZE. 
Pleuroncodes monodon (M. Edw.)? 
Compared with Milne Edwards's figure of P. monodon (Ann. Sei. Nat., 3° sér. 
Zool., XVI. Plate XI. Figs. 6-9), the “ Albatross” specimens present a more 
obese appearance; their greatest width is across the cardiac region, while in the 
figure of P. monodon it is near the posterior end of the carapace ; the cardiac 
area, too, in the examples before me, is sunk below the level of the rest of the 
carapace, and the transverse piliferous lines are more broken at this point, as 
well as on the gastric region, than appears to be the case in P, monodon, to 
judge from the figure referred to, Unless these discrepancies are due to the 
inaccuracy of Milne Edwards’s draughtsman, the “ Albatross” specimens belong 
to a new species, 
Station 3385. 286 fathoms. 16 males, 7 females. 
* 3386. 242 i^ 9 males, 14 females. 
“ 3396, 259 K 2 males, 2 females. 
“3493, 94 5 18 males, 11 females. 
Munida obesa, sp. nov. 
In this species we see an approach to the genus Plewroncodes, as the sides or 
latero-inferior walls of the carapace are somewhat swollen, so that they show 
a little when the animal is viewed from above. The basal joint of the an- 
tenns, too, is more exposed from above than it is in the typical species of 
Munida. The lateral rostral spines, or supra-ocular spines, are curved wpward 
more than the median rostral spine, and the three are nearly parallel, the 
lateral spines reaching about half way to the tip of the dian ; all three are 
microscopically spinulose on their upper edge. Th ve two pairs of spines 
on the anterior part of the gastric region in line with vae lateral rostral spines. 
Of these two pairs the anterior is the larger. There is also a longitudinal line 
of spinules in the median line between the two pairs just spoken of. There 
are, in addition to these, several small spines irregularly arranged on each side 
of the gastric region. The cardiac arca is somewhat sunk below the level of 
