146 ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 



4. MurjENA 



Form. — Snout rather compressed before the eyes, not very long, and slightly obtuse. Upper jaw a 

 very little in advance of the lower. The gape extends behind the eyes, but the posterior 

 portion is not equal to the anterior. The teeth, tubular orifices, and pores, are very much the 

 same as in the species last noticed. Dorsal very distinct, commencing in advance of the 

 branchial orifice. Anal not so distinct as the dorsal. 



Length 5 inc. 6 lin. 

 Colour. — Brown, but with some lighter specks and mottlings, more particularly on the lower jaw 

 and on the fins. 



Taken by Mr. Darwin at Tahiti. Probably a new species, but, as in the last 

 case, the specimen is young and not easily determinable. 



