Scientific Name
Opisthopterus valenciennesi
Common Name
Slender tardoor
Biology
Dorsal
spines
(total): 0;
Anal
spines: 0;
Anal
soft rays: 54 - 65. Belly convex in front, with 30 to 33 scutes. Mouth pointing obliquely upward. Pectoral fin distinctly shorter than head; dorsal fin small, well behind midpoint of body; anal fin long, its origin well before dorsal fin origin.