2. EUCTENOQOBIUS. 79 



and higlier than the posterior ; caudal lanceolate. A black mark 

 on the posterior portion of the first dorsal. 

 South Pacific (?). 



a, h. Types of the species. South Pacific. Presented bj^ Captain 

 Sir E. Belcher, C.B. From the Haslar Collection. 



152. Gobius virgo. 

 Gobius virgo, Schleg. Fau». Japan. Poiss. p. 143. pi. 74. fig. 4. 

 D. 8 I 26-28. A. i. 



Scales minute. The height of the body is one-seventh of the 

 total length ; snout moderately long, with the jaws equal in length. 

 Caudal rounded ; dorsal fins rather lower than the body. Brownish : 

 an orange-coloured blue-edged band runs from the upper Hp through 

 the lower half of the eye to the caudal fin ; another similar band from 

 the angle of the mouth to the operculum. Dorsal fins orange- 

 coloured, with a blue stripe below the margin ; caudal and anal with 

 the margins blue and black. (Schleg.) 



Baj' of Nagasaki. 



2. EUCTENOGOBIUS. 



Euctenogobius, Gill, Ann. Lye. Nat. Hist. New York, 1859, p. 45. 



Body elongate, covered with ctenoid scales of moderate size ; gill- 

 openings ? Teeth small, in a single series in the upper jaw, and in 

 a naiTow band in the lower ; canine teeth none. Two dorsal fins, 

 the first composed of six spines. Ventral fins united, not adherent 

 to the beUy. 



Amazon River. 



1. Euctenogobius badius. 



Euctenogobius badius. Gill in Ann. Liic. Nat. Hist. New York, vii. 1859. 

 p. 45. 



D. 6 I ^. A. j^. L. lat. 50. 



Eighteen longitudinal series of scales between the dorsal fin and 

 the anus. The height of the body is one-seventh of the total length, 

 the length of the head one-sixth ; head somewhat higher than long ; 

 snout convex. A pore above each eye, and two on the upper half of 

 the ascending margin of the praiopercuhim. Eyes close together, theii- 

 diameter being one-fourth of the length of the head. Dorsal fins not 

 elevated ; caudal rounded ; none of the pectoral rays silk-like. Red- 

 dish-brown, with an indistinct hoary dot in the centre of each scale ; 

 two bluish bands extend from the eye to the upper jaw ; caudal fin 

 with about seven cross-bars; the other fins almost uniform. {Gill.) 



Amazon River. 



See also Gobius owi/pterm (p. 34), which is said to have the teeth 

 in a single scries. 



