REPORT ON THE BRACHYURA. 
127 
the obsolescence of the three first teeth of the antero-lateral margins, the very obscure 
lobulation of the dorsal surface, and the form of the chelipedes. 
In the single specimen in the Challenger collection the right chelipede is considerably 
the larger and more robust, but does not differ markedly in form' from the smaller one. 
It has much the aspect of a species of Liomera, but the basal antennal joint does not 
enter so far within the inner orbital hiatus as in the typical species of that genus. It 
much resembles Xantho punctatus, Milne Edwards, as figured by A. Milne Edwards , 1 
which I formerly referred to the genus Liomera, but is distinguished by the more 
distinctly developed although not prominent teeth of the antero-lateral margins. 
A. Milne Edwards’ description of this species is very brief, and its identification 
is therefore somewhat uncertain. If the Challenger species be distinct it may be 
designated by the name I originally applied to it, Xantho Idevidorsalis. 
Xanthodes, Dana. 
Xantliodes, Dana, Proc. Acad. Nat. Sci. Philad., p. 75, 1852; U.S. Explor. Exped., vol. xiii., 
Crust. 1, p. 148, 1852. 
In this very doubtful genus the carapace is more convex and deflexed near the 
front and antero-lateral margins than in the preceding (somewiiat approaching certain 
species of Pilumnus ), but posteriorly depressed ; the antero-lateral margins are not tliin- 
edged or cristiform, and their teeth are tuberculiform, or even spinuliform. The basal 
antennal joint is short and barely reaches the infero-lateral process of the front. The 
post-abdomen, in the male, is five-jointed. 
It includes the following species, as at present restricted ; — 
A. Oriental Species. 
Xanthodes lamarclcii (Milne Edwards) = Xantho cultrimanus, White, and 
Xanthodes granosomanus, Dana. Indo-Pacific Region. 
Xanthodes nitidulus, Dana. Paumotu Archipelago ; New South Wales, Port 
Jackson (Coll. Brit. Mus.). 
Xanthodes notatus, Dana. Paumotu Archipelago ; Sandwich Islands ; New 
Caledonia. 
Xanthodes depressus, White. Philippines. 
Xanthodes elegans, Stimpson. Japan, Simoda. 
Xanthodes pachydactylus, A. Milne Edwards. New Caledonia. This species, in 
the well-developed antero-lateral teeth, approaches Xantho. 
Xanthodes scabra (Fabricius). Souda Islands ; East Australia ; “ India-orien- 
talis ” (Fabricius). 
Xanthodes atromanus, Haswell. ? 
1 Nouv. Archiv. Mus. Hist. Nat., vol. ix. p. 199, pi. vii. fig. 6, 1873. 
