REPORT ON THE BRACHYURA. 
177 
more nearly resemble Neptunus tenuipes than Neptunus rugosus, and a sufficient series 
of specimens would perhaps establish the identity of the two species. 
The dimensions of the specimen from the Philippines are as follows 
Adult £. Lines. Millims. 
Length of carapace, . . . . . . . 8 17 
Breadth to base of lateral epibranchial spine, . . . . 11 23 - 5 
Neptunus (Amphitrite) gladiator (Fabricius). 
Portunus gladiator, Fabricius, Entom. Syst. SuppL, p. 368, 1798. 
,, (Amphitrite) gladiator, de Haan, Crust, in v. Siebold, Fauna Japoniea, pp. 9, 39, pi. i. 
fig. 5 3,1833. 
Neptunus gladiator, A. Milne Edwards, Archiv. Mus. Hist. Nat., vol. x. p. 330, 1861, et 
synonyma. 
South of New Guinea, lat. 9° 59' 0" S., long. 139° 42' 0" E., in 28 fathoms (Station 
188). Two adult males. 
Adult £ . 
Lines. 
Millims. 
Length of carapace, ...... 
18 
38-5 
Breadth to base of lateral epibranchial spine, nearly . 
271 
58 
In this species the postero-lateral angles of the carapace are rounded, not dentiform, 
the median are shorter than the submedian frontal teeth, and there are two spines on 
the posterior margin of the merus of the chelipedes. 
Neptunus ( Amphitrite ) gladiator, var. argentatus (White). 
Amphitrite argentata, White, List Crust. Brit. Mus., p. 126, 1847, descript, mdla. 
Nephmus argentatus, A. Milne Edwards, tom. cit., p. 332, pi. xxxi. fig. 4, 1861. 
Of this variety, which is scarcely distinguishable from the typical Neptunus gladiator, 
except by the more rudimentary frontal teeth and somewhat narrower carapace, and 
which I think to be founded on younger examples of Fabricius’ species, a female was 
dredged in the Celebes Sea in 10 to 20 fathoms, lat. 6° 54' 0" N., long. 122° 18' 0" E. 
(Station 212). 
$ . Lines. Millims. 
Length of carapace, . . . . . . . 8 17 
Breadth of carapace, . . . . . . 11 \ 23’5 
I should add, that in all the specimens I have seen of this variety, the terminal 
joint of the fifth legs is marked with a very distinct purple or reddish spot, which is very 
obscurely indicated in, or absent from the specimens of the typical Neptunus gladiator I 
(ZOOL. CHALL. EXP. PART XLIX. 1886.) Ccc 23 
