14. SAKGUS. 451 



is very slightly convex, but the posterior angle is rounded ; the rays 

 differ little in length, the posterior ones excepted, and arc about 

 three-fourths of the longest spine. The caudal fin Ls forked, one of 

 the middle rays being not quite one-half of the rays of the upper 

 lobe, which is longer than the loAver. The distance of the caudal 

 fin from the anal is much less than that from the dorsal. The 

 origin of the anal falls vertically below the end of the spinoiLS dorsal 

 or the 22nd scale of the lateral hue, its end below the 39th scale ; 

 it is much lower than the soft dorsal and has a slightly curved 

 margin, nearly parallel to its base. The spines are moderately strong : 

 the first nearly one-half the length of the second ; the second not 

 stronger and rather shorter than the third, and contained 3f in the 

 length of the head ; the first ray is rather longer than the last spine. 

 The pectoral fin has a few very small scales at the base ; the fifth ray 

 exceeds the others in length, reaching to the second ray of the anal 

 fin. The base of the ventmls falls entirely behind that of the pec- 

 torals ; they are elongate, the fu'st ray extending to the origin of 

 the anal; the spine is about one-half of the length of that ray. 

 There is a long scaly flap inserted at the base of the ventral. 



The scales are minutely ciliated at the outer margin, higher than 

 wide ; one of the largest covers one-haK of the eye. 



The incisors have a conical root and the crown slightly compressed 

 and flattened ; there are six in the iipper jaw and eight in the lower. 

 The molars are an-anged in two series, the inner of which contains 

 the larger ones ; all are of moderate size, but they gradually become 

 larger posteriorly. 



The scales are greenish, with an olive margin and golden centre ; 

 the dorsal, anal, and ventral fins and the axil are blackish. 



inches, lines. 



Total length 10 8 



Height of the body 4 3 



Length of the head 2 9 



Distance between the eyes 8f 



Length of the snout 1 2 



Diameter of the eye * 7 



Distance between dorsal and caudal 1 4 



between anal and caudal 1 1 



Length of the fourth dorsal spine 1 4 



of the twelfth dorsal spine 10 



of the second dorsal ray 1 



of the second anal sjunc 9 



of the first anal I'ay lO^ 



of the pectoral 3 



of the ventral 2 1 



of a scale 4 



ITeight of a scale <> H 



Sl-eleton. — The jaw-bones, being armed with teeth much smaller 

 than those of Sarqus vulqaris. are therefore not so strongly developed 



2g2 



