CRUSTACEA OF THE MERGUI ARCHIPELAGO. 237 
found in Elphinstone Island Bay. I hesitate to determine it, 
because young specimens differ much from the adult. It 
seems, however, to be allied to Diogenes senex, Heller, a species 
from Sydney, distinguished at first de. from D. avarus by the 
larger hand being very pilose. 
Genus Cripanarius, Dana. 
A. Dactylopodites of the legs of the second and third pair 
distinctly longer than the propodites. 
135. CLIBANARIUS INFRASPINATUS, Hilgend. 
Pagurus (Clibanarius) infraspinatus, Hilgendorf, Crustaceen von Ost- 
Afrika, 1869, p. 97 (footnote). 
Six fine specimens of this common Indian species were 
collected ; four of them are without definite locality, and inhabit 
shells of Pyrula, whereas the two others were found in King 
Island Bay: one of the latter has no shell, and the other much 
smaller individual inhabits a Buccinwm. 
Dr. Hilgendorf has kindly compared a specimen for me with his 
types of Clibanarius infraspinatus from Singapore in the Berlin 
Museum, and communicated me some remarks about this species 
and C. vulgaris, Dana (= Cancer clibanarius, Herbst). 
According to Dr. Hilgendorf, the latter species, which was 
adopted by Dana as the type of his genus Clibanarius, and 
named by him Clibanarius vulgaris, is closely allied to C. infra- 
spinatus, Hilgendorf, and only differs from it by the arms of 
the anterior legs not being armed with a spiniform tubercle at 
the proximal end of the inner margin of the under surface. 
The large typical specimen of Cancer clibanarius, which Herbst 
figured (t. 11. pl. xxiii. fig. 1), and which is still preserved in the 
Berlin Museum, had and still has a uniform red colour, but 
another specimen in Herbst’s collection presents the same colora- 
tion as Chibanarius infraspinatus. When we consider that the 
Berlin Museum, since the days of Herbst, has not received a 
single crab agreeing with his types of C. clibanarius, but 
that numerous specimens identical with C. infraspinatus have 
been frequently added to the collection of that institution, I 
think we have some reason to regard the old type of Herbst 
as a mere variety of C. infraspinatus. Iam therefore inclined 
to unite both species under the name of C. vulgaris, Dana. 
