CRUSTACEA OF THE MERGUI ARCHIPELAGO. 24:7 
B. Dactylopodites of the legs of the second and third pair shorter 
than the propodites, or at least appearing shorter when seen 
from above. 
138. CLIBANARIUS VIRESCENS, Krauss. 
Pagurus virescens, Krauss, Sudafrikanische Crustaceen, 1843, p. 56, 
tab. iv. fig. 3. 
Clibanarius virescens, Hilgendorf, Crustaceen von Ost-Afrika, 1869, 
p. 95. 
Two specimens were collected at Owen Island. They are 
without shells. In structure they agree with all the essential 
characters of the finely-coloured C. virescens, Krauss, and are 
nearly similar in coloration to specimens of the species found on 
the coast of Natal, presenting only a few slight differences from 
Krauss’s description. The propodites of the legs of the second 
and third pairs, in these specimens, as in those from Natal, are 
of an olive-green colour; but in the Mergui specimens this 
colour is remarkably dark quite at the distal ends of the joints, 
and the latter are moreover marked at the distal ends of their 
outer surfaces with a small white spot. The dactylopodites of 
these legs are yellow-ochre, but are not marked with a green 
ring in the middle. The olive-green eye-peduncles are marked, 
on their uppersides, at their distal ends, with a narrow white 
ring before the cornea. 
The cephalothorax of the larger specimen is 9 millim. long. 
Clibanarius virescens has hitherto been recorded from the rocky 
coast of Natal, where it is a very common species, also from 
Zanzibar, the Red Sea (Hilgendorf), and Hongkong (Heller, 
Novara-Reise). This species is therefore probably distributed 
throughout all the Oriental seas. 
139. CLIBANARIUS HQUABILIS, Dana, var. MERGUIENSIS, 0. 
Clibanarius equabilis, Dana, United States Expl. Haped., Crustacea, i. 
p. 464, pl. xxix. fig. 4. 
Clibanarius zequabilis, Heller, Crustaceen der Novara- Reise, S. 91. 
Twenty-four specimens were collected at King Island Bay, in- 
habiting shells of Merita and Cerithium. 
_ Many years ago Dana described and figured two species of the 
genus Clibanarius which are closely allied to one another. One 
of these species, C. equabilis, was discovered at the Island of 
Madeira; the other, however, which was called C. zebra, inhabits 
