280 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
podites are also armed with a similar spinule, about in their 
middle. The legs of the fourth pair reach to the distal end of 
the antennal scales ; their meropodites also are armed with a 
small spine near their distal ends ; the propodites are about once 
and a half as long as the carpcpodites, and armed with a row of 
four spinules along their inner margins. The dactylopodites 
finally (fig. 6) have the ordinary form, being nearly straight, 
scarcely arcuate, pointed and acute, and each is armed at its base 
on its inner margin with a small spinule. The legs are very 
sparsely covered with a few hairs. . 
The uropoda are a little longer than the terminal segment of 
the postabdomen, and their inner ovate rami are ciliate. 
Genus Patamon, Fabr. 
155. PatmMon carcinus, Labr. 
Palemon carcinus, Fabricius, Suppl. Entom. p. 402; Milne-Edwards, 
Hist. Nat. Crust. t. i. p. 395; de Man, “ On some Species of the Genus 
Palemon, Fabr.,”’ in Notes from the Leyden Museum, i. p. 165. 
One very young specimen only was collected at Mergui. It is 
still smaller than the specimen which I described in the “ Notes 
from the Leyden Museum,” for it is only 45 millim. long from the 
tip of beak to the end of the terminal segment. This specimen, 
however, wholly agrees with that in Leyden, the carpopodite 
of the second pair of legs being twice as long as the palm, and the 
first pair of legs projecting a little beyond the appendages of the 
antenne. 
Palemon carcinus has been recorded from the mouth of the 
Ganges, from Singapore, Sumatra, Borneo, the Philippines, Java, 
Celebes, and Siam. 
156. Patamon acutirosrRis, Dana. (Plate XVIII. fig. 7.) 
Paleemon acutirostris, Dana, Unit. States Expl. Exp. Crustacea, i. p. 590, 
pl. xxxix. fig. 1. 
The collection contains seven specimens of this species, which 
was discovered at the Sandwich Islands. Six were captured at 
King Island, in fresh water, the seventh at Elphinstone Island. 
The few points in which these specimens differ from Dana’s 
description in his ‘Conspectus’ and from his figures (the 
text is not at hand) are so unimportant that I do not regard 
them as examples of any other species but P. acutirostris. 
If, however, further research should prove that the species 
