Triakidae (houndsharks)
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Carcharhiniformes
Small to moderate sized inshore sharks with
oval eyes, long labial furrows, large spiracles, and no precaudal
pits. All are live-bearers, and some have placentas. At least 34
species, 7 in the area.
Families in southern Africa
Galeorhinus galeus (Tope shark
or soupfin) A houndshark with a long, pointed snout, large
mouth, bladelike small teeth, a small 2nd dorsal fin about as large
as anal fin, and a terminal caudal lobe as long as rest of fin.
Colour greyish above, white below, young with black markings on
fins. |
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Hypogaleus hyugaensis (Blacktip
tope) A slender houndshark with a long broadly
pointed snout, large oval eyes, bladelike teeth, a 2nd dorsal fin
larger than anal fin, and terminal caudal lobe shorter than the rest
of fin. Colour grey or brown above, underside lighter, young with
black-tipped fins. |
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Mustelus mosis (Arabian
smoothhound) A smoothhound with no spots and often a
white-tipped 1st dorsal fin. Adults have a hard, bonelike growth
imbedded in their snouts, lacking in other smoothhounds, that can be
readily felt by pinching it. Colour uniform grey or grey-brown
above, white below. |
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Mustelus mustelus (Smoothhound) A large plain or black-spotted smoothhound,
underside white. |
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Mustelus palumbes (Whitespot
smoothhound)
A grey smoothhound with a line of small white
spots on its body, underside white. |
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Scylliogaleus quecketti (Flapnose
houndshark) A blunt-nosed houndshark with large fused nasal
flaps similar to those of shysharks (pp. 48-49), small, blunt,
pebble-like teeth, and 2nd dorsal fin as large as 1st. Colour gray
above, cream below, newborn with white rear edges on dorsal, anal
and caudal fin. |
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Triakis megalopterus (Spotted
gully shark) Similar to smoothhounds (Mustelus) but with a
broad blunt snout, large mouth with pointed small teeth, more
massive body, larger fins, and short, heavy caudal peduncle. Colour
grey or bronzy above, white below, usually with numerous small black
spots; newborn young and some adults are spotless or have few spots. |
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Text by Leonard J.V. Compagno, David A. Ebert
and Malcolm J. Smale
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