MONOGRAPH OF THE LEUCOSIADE: 299 
broad as it is long. The fingers differ from those in any other genus of the family, 
with the exception of Nursilia, in their beautiful tenuity, their curvature, and their 
hooked points, which cross each other considerably when closed. : 
This genus may be considered as bearing the same relation to Myra, as Leucosilia does 
to Persephona; and as Myra and Persephona represent each other in the different hemi- 
spheres, so may Myrodes and Leucosilia. 
Species unica, MYRODES EUDACTYLUS, mihi (Tas. XXXII. fig. 6). 
Hab, ad insulas Philippinas. Muss. Brit., Bell. 
Carapace minutely and sparsely granulated, distinctly but slightly carinated; hepatic 
region with a small ridge, and a marginal tooth; cardiac region separated from the 
_ branchial on each side by a slight depression; the posterior teeth rather small, the middle 
one the longest and placed a little higher than the others. Rostrum distinct, bifid, the 
two tooth-like projections forming the covering of the antennary fossæ, which are very 
open. External foot-jaws with the palp evenly curved on the outer edge, but without the 
dilatation which characterizes Myra. Anterior legs short, the arm minutely granulated ; 
hand swollen at the base, narrowed forwards, as broad as it is long; the fingers slender, 
elegantly curved, longer than the hand, armed with sharp teeth and hooked at the extre- 
mity. Abdomen in the immature female lanceolate, with a rather broad shallow carina, 
Length of carapace 0:9 in. dian 
. This beautiful species was brought by Mr. Cuming from the Philippines. 
Genus PHILYRA, Leach. 
CHAR. Gen.— Testa orbicularis, depressa, inermis, fronte epistomate breviore. Fosse scopi - 
transversales. Orbita suprà aperta, trifissa. Pedipalpi externi caule exteriore dilatato. Pe s octo 
posteriores tarso compresso, lamelloso. Abdomen MARIS hastato-lanceolatum,— F &M1N.& articulo 
ultimo angusto valdé producto. 
The character which has hitherto 
namely the extraordinary dilatation 
in the different species now known; 
circular, whilst in others it is not more 
been considered as the essential one in this genus, 
of the palp of the foot-jaws, varies greatly in degree 
the outline in some being scarcely less than semi- 
curved than in Myra. This is another instance 
of the importance of taking into account the whole organization of the animal, instead of 
copending npon Roue "E = xd th t aid Mie ie. Ma d us cadit sd 
e , 
absence of all armature, the c > to is lied on, than the form of the palp of the 
stance quite as important, and even more 
external foot-jaws. 
te epistomate multd 
Pırruwaa scanrruscuza, Fabr. Testi rin get 
breviore; brachiis tuberculatis, manibus © | 
nulatis. | 
Hab. in mari Indico. 
Vide Edw. Hist. Nat. Crust. ii. p. 132. t. 20. 
VOL. XXI. 
Muss. Brit., Soc. Linn., Bell. | 
£. 9,10. . og! 
