264 Mr. E. J. Miers on Crustacea from 
exterior margin arcuated, broader at its distal end than the 
endognath. Anterior legs or chelipedes rather slender; merus 
trigonous with the margins granulated; carpus very small ; 
palm slightly compressed, with the upper and lower margins 
carinated but not granulated; fingers slightly incurved at 
their acute apices, and slightly hairy on their inner margins. 
Ambulatory legs slender and short, with the joints (except the 
dactylus) slightly compressed and carinated butnot granulated ; 
dactylus slender. Colour (in spirit) light yellowish or greyish, 
sometimes with faint dusky lines on the carapace. Length of 
the largest specimen nearly 3 lines (6 millim.), breadth very 
little more; length of chelipede, when extended, about 4 lines 
(83 millim.). 
I refer this species to the genus Philyra; but it may not im- 
probably be found to constitute the type of a distinct genus 
intermediate between Philyra and Onychomorpha. It differs 
from all other species of the genus except P. marginata, 
A. M.-Edwards*, from Upolu, in the marginal crest or im 
of the carapace, and in the form of the male postabdomen. 
From Onychomorpha lamelligera, Stimpsony, it differs not 
only in the form of the carapace, but also in the transverse 
antennulary fossettes, form of the postabdomen in the male, and 
longer fingers of the chelipedes. O. lamelligera was obtained 
at Hong-Kong. 
Philyra marginata is very briefly described, but is appa- 
rently distinguishable by the finely granulated upper and lower 
margins of the chelipedes. 
Philyra levidorsalis, sp.n. (Pl. XV. fig. 2.) 
Carapace moderately convex, smooth and shining, its upper 
surface minutely punctulated, slightly concave behind the 
front, but without any marked depressions or sutures, and 
destitute of granulations and tubercles; the lateral margins, 
however, are defined by a granulated line, which extends from 
the front to within a short distance of the posterior margin, 
which is straight and marked with a granulated ridge. The 
frontal margin projects less than the anterior margin of the 
buccal cavity, and has a very obscure median prominence. 
The inferior surface of the body is naked, shining, but minutely 
punctulated. The postabdomen of both sexes has all the 
joints except the first and last coalescent, without tubercles ; 
the terminal jomt in the male is very small, much narrower 
than the preceding, whose posterior limit is indicated by cre- 
* Journ. Mus. Godeffroy, iv. p. 85 (1873). 
+ Proc, Ac, Nat. Sci, Phil, p. 162 (1858), 
