128 
THE VOYAGE OF H.M.S. CHALLENGER. 
B. West American Species. 
Xanthodes taylori, Stimpson = Xanthodes spinituberculatus (Lockington). 
California. 
Xanthodes xantusii, Stimpson. California. 
Xanthodes insculpta, Stimpson. California. 
Xanthodes (?) angustus, Lockington. California. 
C. Atlantic Species. 
Xanthodes eriphioides, A. Milne Edwards. Cape St. Vincent. 
Xanthodes melanodactylus, A. Milne Edwards. Cape St. Vincent ; Cape Verde 
Islands and Azores (50 to 90 fathoms); Madeira, Ascension Island; Goree 
Island, Senegambia (Coll. Brit. Mus.). 
Xanthodes rufopunctatus , A. Milne Edwards. Cape St. Vincent ; Maio. (Very 
near the preceding.) 
Xanthodes bidentatus, A. Milne Edwards. Grenada (92 fathoms). This species 
should, perhaps, be placed in the genus Xantlio, and if so, a new name must 
be adopted for it. 
Xanthodes melanodactylus, A. Milne Edwards. 
Xanthodes melanodactylus, A. Milne Edwards, Nouv. Archiv. Mus. Hist. Nat., vol. iv. p. 60, 
pi. xvii. figs. 1-3, 1868. 
Numerous specimens were obtained at St. Vincent, Cape Verde Islands, and also off 
Fayal, in 50 to 90 fathoms, and a very small example off Gomera, Canary Islands, in 
75 fathoms. 
I have elsewhere remarked on the variability of the colour of this species. 1 
In nearly all of the specimens in the Challenger collection the figures are dark-coloured, 
and many have the carapace varied with dusky spots. In one example from St. Vincent 
(a male of large size) the chelipedes are rose-coloured, and the fingers a slaty -pink. 
An adult male from St. Vincent has the following dimensions : — 
Adult <? . Lines. Millims. 
Length, of carapace, . . . . . . . 3 6 '5 
Breadth of carapace, nearly . . . . . . 5 10 
Panopeus, Milne Edwards. 
Panopeus, Milne Edwards (pt.), Hist. Nat. Crust., vol. i. p. 403, 1834. 
„ A. Milne Edwards, Crust, in Miss. Sci. au Mexique, pt. 5, p. 306, 1880. 
Carapace transverse, depressed, shaped nearly as in Xantho, with the dorsal surface 
often marked with transverse prominences which are minutely granulated. The cervical 
1 Ann. and Mag. Nat. Hist., ser. 5, vol. viii. p. 212, 1881. 
