REPOET ON THE BRACHYURA. 
35 
in the female five-jointed, with the fourth to the sixth joints coalescent. Eyes very small 
and a lm ost immobile. The basal antennal joint is somewhat enlarged and coalescent at 
its distal extremity with the front ; beneath which the flagella are inserted and thus not 
visible in a dorsal view. The exterior maxillipedes are small, the rnerus distally truncated 
and bearing the next joint at its antero-internal angle. The chelipedes (in the male) are 
moderately developed, with the palms compressed and cristate above ; the fingers sub- 
excavated at the apices and having between them at the base, when closed, a more or 
less distinct interspace. Ambulatory legs of moderate length, with the penultimate 
joints, at least, more or less compressed ; the dactyli retractile, and shorter than the 
penultimate joints. 
In the carapace of the males a pair of antero-lateral lobes are occasionally, but rarely, 
developed, and a specimen presenting this peculiarity has been figured by De Haan 
(tom. cit., pi. xxiii. fig. 4), and a male from West Island, Torres Strait, is in the collec- 
tion of the British Museum. 
The typical species of the genus, the very variable Huenia proteus, De Haan, else- 
where noted (tom. cit., infra, p. 191) occurs in shallow water on the coasts of Japan and 
China, and ranges southward among the Philippines and to the coast of Queensland and 
islands adjacent. Two other nearly allied sj>ecies belong to this genus ; Huenia 
grandiclieri, A. Milne Edwards, founded on a female type from Zanzibar, and Huenia 
pacifica, Miers, occurring at the Fiji Islands and Seychelles, in 4 to 12 fathoms. 1 
The following species, which have been referred to Huenia, do not, I think, belong to 
this genus ; Huenia simplex and Huenia brevirostrata, Dana, which, as has been 
elsewhere shown, are to be regarded as male and female of a single species, for which I 
have established the genus Simocarcinus ; and Huenia depressa, A. Milne Edwards, also 
probably a female Simocarcinus. Huenia bifurcata, Streets, may also belong to 
Simocarcinus ; it is described as having the rostrum bifurcated at the tip ; by this may 
be intended the slight notch, which, in some specimens of Simocarcinus simplex, is 
observable in a lateral view of the distal extremity. 
Huenia proteus, De Haan. 
Huenia proteus, l)e Haan, Crust, in v. Siebold, Eauna Japonica, dec. 4, p. 95, pi. xxiii. 
figs. 4, 5, ( elongatu ), fig. 6, ? ( lieraldica ), and pi. G, 1839. 
,, Miers, Crust, in Report on Zool. Collections of H.M.S. “Alert,” p. 191, 1884, 
et synonyma. 
Two adult males and two females were collected near Cape York, Australia, in 
8 fathoms, in lat. 10° 30' 0" S., long. 142° 18' 0" E. (Station 186). The males are 
1 As I have observed in the Report on the Crustacea of H.M.S. “ Alert,” a sufficient series of specimens might 
demonstrate the identity of these forms with Huenia proteus . There is in the collection of the British (Natural 
History) Museum, a female example of Huenia proteuA from Norfolk Island, 23 fathoms (H.M.S. “Herald”). This 
is, I believe, the greatest depth at which the occurrence of Huenia has been recorded. 
