19. CH^TOPTEEITS. 385 



long ; one of the largest covers one-sixth of the eye. The lateral 

 line follows the curvature of the back. 



There are, besides the ^^ Hi form bands and the outer series of larger 

 teeth, four canines of moderate size in front of the upper jaw. The 

 lower jaw is armed mth a single pair ; they are rather bent out- 

 wards, and receive the four upper ones between them. 



To the coloration, as given above, must be added, that the ground- 

 colour is now a reddish olive (rose-coloured in life?), and that 

 two of the specimens exhibit a brownish speck at the root of 

 the caudal, in the angle formed by the pearl-coloured bands. A 

 similar spot is found in Pentapus setosus. 



inches, lines. 



Total length (without filament) 7 6 



Height of the body 1 11 



Length of the head 1 11 



Diameter of the eye 6 



Length of the fifth dorsal spine 9 



of the pectoral 1 3 



of a large scale 1| 



Height of a large scale 3 



19. CH^TOPTERUS. 



Chaetopterus, Temm. Sf Schleg. Faun. Jaimn. Poiss. p. 78. 



Form of the body elongate ; eye moderate ; cleft of the mouth 

 slightly oblique, with the lower jaw rather longer. One continuous 

 dorsal with ten spines, the anal fin with three. CaudaUs deeply 

 forked. Canine teeth none ; minute teeth on the vomer and the 

 palatine bones. Praiorbital and praeoperculum entire, i Four bran- 

 chiostegals. Scales moderate, ciliated. 



Japanese Sea. 



1. Chaetoptenis dubius. 



Chaetopterus, sp., Temm. <^ Schleg. I. c. pi. 37. f. 2. 



Uniform red. 

 Japanese Sea. 



D. 1^. A. f L. lat. 75. 



20. APHAREUS. 



Aphareus, Cuv. ^ Vol. vi. p. 485 ; Rlqip. N. W. Fis^rhe, p. 121. 



Form of the body oblong ; eye moderate ; the cleft of the mouth 

 slightly oblique, rather wide, with the lower jaw longer. One 

 dorsal, continuous, with the anterior part highest, and witt ten 

 or twelve spines ; analis |-. All the spines feeble ; caudalis deeply 

 forked. No canines. No teeth on the palate. Praeorbital and prae- 

 operculum entire. Scales rather small. Seven branchiostegals. Air- 

 bladder simple. A (respiratory) cavity behind the branchiae, at the 

 interior side of the humenis. Pyloric appendages in small number. 



Red Sea ; Isle de France. 



