FAO Species Identification Guide for Fishery Purposes Western

1330 Sharks
Carcharhinus borneensis (Bleeker, 1859)
Frequent synonyms / misidentifications: None / None.
FAO names: En - Borneo shark; Fr - Requin-tigre houareau; Sp - Tiburón de Borneo.
Diagnostic characters: A small shark. Body
relatively slender. Snout very long and
pointed, its length greater than mouth width and
distance between nostrils; labial furrows very
short; anterior nasal flaps high and narrow,
nipple-shaped; spiracles absent; teeth with
serrated edges, those in upper jaw with
narrow, oblique cusps and large cusplets on
each side of cusp; teeth in lower jaw with erect
to oblique, narrow serrated cusps, weak
cusplets or large serrations and transverse
roots. First dorsal fin moderately large, with a
ventral view
of head
upper and lower
tooth
blunty pointed apex, its inner margin moderately long, the free rear tip attenuated, and its origin slightly
anterior inner margins of pectoral fins; second dorsal fin very low, the inner margin over twice the fin
height, fin origin over or slightly behind midbase of anal fin, pectoral fins relatively short, with narrowly
rounded or angular tips. No dermal ridge between dorsal fins. Colour: brown above, white below, tip of
first dorsal fin and dorsal caudal-fin margin dusky, paired fins and anal fin with light edges, but markings
not conspicuous.
Size: Maximum total length about 70 cm.
Habitat, biology, and fisheries: A rare coastal, inshore, tropical shark, with biology virtually unknown.
Apparently rare, but undoubtedly taken in local fisheries.
Distribution: Recorded in
the Indo-West Pacific from
China, Borneo, and possibly
from Java and the Philippines.