248 DR. J. G. DE MAN ON THE PODOPHTHALMOUS > 
the seas of the Sandwich Islands. C. equabilis was afterwards 
collected on the coast of Chili (‘ Novara’ Expedition); so we 
may conclude that this species inhabits the Atlantic Ocean, and 
C. zebra the Pacific. Stimpson described, in 1858, a third species, 
C. pacificus, from Japan. Although closely allied to C. equa- 
bilis, it differs from it in the dactylopodites of its ambulatory 
legs being longer. The Mergui specimens seem to belong to 
Dana’s C. equabilis, as they nearly completely agree with the 
diagnosis in his ‘Conspectus,’ and with his figures. The few 
remarks of Heller on specimens from Chili are algo applicable 
to these individuals. Nevertheless, I anticipate that Mergui 
specimens will present some slight differences from Madeira 
individuals, when the two are compared together. I propose 
therefore to describe them as a variety merguiensis. C. zebra 
apparently differs from these specimens in its coloration, its 
ambulatory legs being longitudianlly striated. 
All these specimens, like those collected on the coast of Chili 
by the ‘ Novara’ Expedition, are of a small size, and scarcely exceed 
15 millim. in length. The cephalothorax has a length of 9 millim.; 
its anterior part, which is bordered posteriorly: by the cervical 
suture, is 43 millim. long and 43 millim. broad. The upper sur- 
face of the cephalothorax is rather coarsely punctate, especially 
the anterior part, the lateral margins of which are clothed with 
some yellow hairs. The median frontal tooth is small, acute, and 
projects a little more forwards than the lateral frontal teeth, 
which are found just outside the bases of the eye-peduncles; in 
Dana’s great work (J. ¢. fig. 4d) the median frontal tooth appears 
scarcely as prominent as in these specimens. The lateral angles 
of the anterior margin are rounded. The slender eye-peduncles 
are scarcely longer than the anterior width of the cephalothorax ; 
they are a little longer than the peduncles of the external an- 
tenne, and also surpass with the cornea the peduncles of the 
internal antenne. The small basal scales are armed anteriorly 
with four or five small acute teeth. 
The anterior legs are closely similar to those of Clibanarius 
aquabilis, Dana, 1. ¢., fig. 4, 6, ¢, and, in a lateral view, also to 
those of C. corallinus, Dana (J. c. fig. 8c). The merus-joints are 
armed with one or two minute, acute teeth at the distal end of 
the under margin of their outer surface ; the antericr margin of 
the outer surface (not the upper margin), which in C, corallinus, 
