Fish of the Tai-Hu. 
519 
Fourth dorsal spine 2| in total length of head ; fourth dorsal ray 2^ to 2f ; fifth 
anal ray 2f to 2| ; caudal to if ; pectoral to i | ; ventral i| to 2. 
Brown above, paler below. Four obscure dark blotches on back, larger than 
interspaces. Sides of head and maxillary blotched with darker, also dark specks 
over most of head and chest. Dorsals blotched with dusky and large blotch in 
middle of spinous fin basally. Caudal with 4 or 5 cross bars, fewer on anal. Paired 
spotted with dusky. Three examples, 88 to 145 mm. 
Gobius caninus Valenciennes. 
Head 3^ ; depth 5 ; D. IV-VI, 7 ; A. I, 7 ; P. 18 ; V. I, 5 : scales 30 in median 
lateral series to caudal base ; 9 scales transversely at soft dorsal and anal origins ; 10 
predorsal scales ; snout 3^ in head ; eye 3 ; maxillary 2f ; interorbital 4 in eye. 
Body elongately fusiform, compressed, more so posteriorly and deepest at second 
dorsal origin. Caudal peduncle greatly compressed, least depth 2| its length or 2| 
in head. 
Head compressed, little constricted above, width if in its length. Snout con- 
vex, length f its width. Eye large, slightl}' impinging on upper profile, advanced, 
hind pupil edge nearly midway in head length. Mouth large, lower jaw little shorter. 
Maxillary well inclined, reaches about opposite pupil. Lips rather thick, ^iesh5^ 
Teeth fine, in narrow band in each jaw. Tongue free, truncate, without median 
notch on front edge. Nostril as small simple pore midway on side of snout. Inter- 
orbital level, very narrow. 
Gill-opening forward about midway in postocular region of head. Gill-rakers 
2-f 5 lanceolate points, about ^ of gill- filaments, which about equal interorbital. 
Scales in even longitudinal series, crowded little on predorsal forward not quite 
to eye ; largest on caudal peduncle. Head, breast, prepectoral and fins, except cau- 
dal base, naked. Scales with 15 basal radiating striae ; apical denticles 15 + ig ; 
circuli coarse. Row of close-set bead-like pores all along prepercle flange and poster- 
iorly another vertical row over front of opercle and subopercle. 
Spinous dorsal begins well behind pectoral origin ; second spine if in head. 
Soft dorsal origin about midway between hind eye-edge and caudal base ; first 
branched ray if. Caudal rounded, slightly less than head. Pectoral with upper 
rays not free or silky ; I3 in head. Ventral disk long as pectoral. 
Dull brown, little paler below. Sides with about 6 obsolete dusky blotches in 
median row. Fins dull brown. Dorsals and caudal with few faint cross streaks. 
Dark spot at pectoral axil above. One example, 34 mm. 
MASTACEMBELIDAE. 
Mastaccmbelus sinensis (Bleeker). 
Head 6^ ; depth 10^ ; D. XXXIV, 64 ; A. Ill, 56 ; snout 3f in head ; eye 2^ in 
snout ; maxillary 3^ in head ; interorbital 2| in snout ; pectoral 3| in head. One 
example, 150 mm. 
