192 
A. Alcock —Carcinological Fauna of India. 
Xenocarcinus tuberculatus , White. 
[No. 2, 
Xenocarcinus tuberculatus, White, P. Z, S., 1847, p. 119, and Ann. Mag. Nat. 
Hist. (2) I., 1848, p. 221, and in Jukes’ Voyage H. M. S. ‘ Fly,’ Vol. II. p, 336. 
Xenocarcinus tuberculatus, Hess, Archiv. f. Naturges. XXXI. i. 1865, pp. 131 
and 171. 
Xenocarcinus tuberculatus, A. Milne-Edwards, Nouv. Archiv. du Mus. VIII. 1872, 
p. 253, pi. xii. fig. 1. 
Xenocarcinus tuberculatus, Miers, Zool. ‘ Erebus ’ and ‘ Terror,’ Crust., p. 1, pi. ii. 
fig. 1, le. 
Xenocarcinus tuberculatus, Ilaswell, P. L. S., N. S. Wales, Vol. IV. 1879, p. 436, 
and Cat. Austr. Crust., p. 8. 
Xenocarcinus tuberculatus, Ortmann, Zool. Jahrb. Syst., etc., VII. 1893, p. 40. 
Carapace elongate ovate-snbcylindrical with the regions ill defined 
and the surface more or less tuberculated. [Typically the tubercles 
fall into distinct transverse rows]. The rostrum has the form of a long 
coarse cylindrical beak, the apex of which is bifid, and the surface 
densely covered with velvety hairs. 
The eyes are completely and almost immovably sunk in the sides 
of the rostrum. 
The antennary flagella are much shorter than, and are completely 
hidden by, the rostrum. 
The chelipeds and ambulatory legs are short and nodular, the latter 
having curved strongly-toothed prehensile dactyli. The chelipeds are 
hardly stouter, and are not much shorter, than the 2nd pair of legs, 
which again are much longer than the 3rd to 5th pair. The colours 
described by White are “ two or three waved longitudinal red lines on 
the posterior half of the carapace, the inner line continued before the 
eyes.” By A. Milne-Edwards the colours of the carapace and legs are 
said to be reddish stained with yellow. 
In a good spirit specimen the abdomen carapace and beak are dull 
reddish brown, with a broad yellow stripe extending from the base of 
the beak to the tip of the abdomen, and on either side of the carapace 
a narrow sinuous yellow line; and the trunk-legs are yellow, more or 
less banded and striped with dull brown. 
In the Museum collection are two females, one from Ceylon (34 
fathoms), the other from the Andamans. The one from Ceylon, which 
is an egg-laden adult 15 millim. loug, resembles as to its carapace and 
rostrum, but not as to its legs, the figure in the Zoology of the £ Erebus ’ 
and 4 Terror ; ’ and as to its legs, but not as to its carapace and rostrum, 
the figure in Archiv. du Mus. tom. VIII. 1872. The other, from the 
Andamans, which is not adult, exactly resembles, as to its carapace, but 
not as to its legs, the last cited figure. 
