Scientific Name
Bostrychus scalaris
Common Name
Ladder gudgeon
Biology
Dorsal
spines
(total): 7;
Dorsal
soft rays
(total): 9;
Anal
spines: 1;
Anal
soft rays: 8;
Vertebrae: 27. This species is distinguished by the following characters: D2 I,9; A I,8; pectoral rays 16; lateral line scales 135-142; mandibular sensory papilla row I arranged in clusters; head broad and depressed; body slender, compressed posteriorly; pectoral fins heavily pigmented; body with distinctive ladder-like dark bars and complex serpentine pattern (Ref. 83590).