248 DR. J. G. DE MATSr ON THE PODOPHTHALMOUS 



the seas of the Sandwich Islands. G. cequalilis was afterwards 

 collected on the coast of Chili (' Norara ' 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. facificus, from Japan. Although closely allied to C cequa- 

 hilis, it differs from it in the dactylopodites of its ambulatory 

 legs being longer. The Mergui specimens seem to belong to 

 Dana's G. cequabilis, 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 also 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. G. zebra 

 apparently differs from these specimens in its coloration, its 

 /K ambulatory legs being longitudi'^nlly 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 4| millim. long and ^\ 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 {}. c. fig. 4 d) 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- 

 tennge, and also surpass with the cornea the peduncles of the 

 internal antennae. The small basal scales are armed anteriorly 

 with four or five small acute teeth. 



The anterior legs are closely similar to those of Glibanarius 

 cequabilis, Dana, I. c, fig. 4, b, c, and, in a lateral view, also to 

 those of G. corallinus, Dana (l. c. fig. 8 c). 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 auterior margin of 

 the outer surface (not the upper margin), which iu G. corallinus, 



