CRUSTACEA. 309 
outer foot-jaws project with their terminal joint beyond 
the peduncle of the lower antennae, but they do not reach 
until the extremity of the scales. The legs of the first 
pair project with two third parts of their carpopodites 
beyond the distal end of the scales. The right leg of the 
second pair is the larger. The meropodite of this leg, 
that is 18!/, millim. long, projects with its distal half 
beyond the antennal scales; the carpopodite is 20 millim. 
long, and 8 millim. thick at the distal end, so that this 
joint is two and a half times as long as thick, like that 
of the specimen of Weber. The chela (Fig. 8) or hand 
is 49 millim. long, and the fingers measure 35 millim. Quite 
different from the first described individual, the fingers 
are not as long as the palm, but they are twice as 
long as it: this difference must, I think, be ascribed 
to the larger size i. e. to the higher age of this specimen. 
The palm is 14 millim. broad and 7 millim. thick, con- 
sequently as much compressed in the proportion of 2:1 
as in the other example. The palm is also comparatively 
as much broader than the carpopodite as in the specimen 
that was collected by Prof. Weber, namely nearly twice 
as broad. The outer and the inner margin of the palm 
are arcuate, and the inner margin of the chela proceeds 
like a S. The slender and narrow fingers have an inter- 
space between them when closed, that grows narrower 
towards their tips; neither the index, nor the dactylus 
shows the large teeth that were found in the specimen of 
Weber, but each finger shows on the whole length of 
its inner edge, a double row of numerous, very small sharp 
teeth. Between the latter, short fine hairs are observed by 
means of a magnifying-glass. 
As regards the characteristic spinulation of this leg, 
this example agrees with that of Weber, but the spinu- 
les of the upper surface of the palm are somewhat more 
numerous and more crowded, that may be ascribed to 
the larger size of this individual. 
This leg is consequently longer than the whole animal. 
Notes from the Leyden Museum, Vol. XV. 
