9.21 Hemipristis elongata: 137 em immature female (Zanzibar). T = teeth.
Genus Hemipristis Agassiz, 1843
The genus Hemipristis was first described on the basis of
fossil teeth. One living species.
Snaggletooth
9.21 Hemipristis eJongata
(Klunzinger, 1871)
Lostandhaai
Dirrhizodon elongatus Klunzinger, 1871 : 665 (Red Sea) . Hemipristis
elongatus: Bass et aI., 1975: 29* .
Interdorsal ridge sometimes present. Spiracles present. Definite upper
dl
I·
T h 14 - 14
h ' hd"
.
I
an ower Ipgrooves. eet 18-18; upper teet WIt Istmchve, ong,
slightly curved cusps strongly serrated on both sides .
Viviparous, 6-8 pups per litter; born at 45-55 cm; attains
about 2.4 m. Common in shallow waters of northern Indian
Ocean; Vietnam to Red Sea. Also Madagascar and Mozambique; 1 specimen from southern Natal.
9: CARCHARHINIDAE (REQUIEM SHARKS)
Genus Hypoga/eus Smith, 1957
One species.
9.22 HypogaJeus hyugaensis
(Miyosi, 1939)
Lesser soupfin shark
Kleiner sopvinhaai
Eugaleus hyugaensis Miyosi, 1939: 91, Fig. 1 (Papas) . Hypogaleus zanzibarensis Smith, 1957: 589, Fig. 2, PI. 19 (Zanzibar). Hypogaleus
hyugaensis: Bass et aI., 1975: 22* .
Internal nictitans. No interdorsal ridge. Teeth smooth-edged, in 2 or 3
functional series. Tooth count about ~.
Dull grey, paler below; front part of snout slightly dusky.
Late embryos have A plain, D and C with black tips and
transparent trailing edges, C also with dark mark in angle of
trailing edge, and underside of snout with longitudinal dark
bands. Viviparous, about 11 pups per litter, born at 35 cm;
attains about 130 cm. Eats fish; too . small to be dangerous.
Taken at depths of 65 - 230 m off Zanzibar, Kenya and
Natal; also known from Japan and Taiwan .
9.22 Hypogaleus hyugaensis: 127 em mature male (Natal). Tail and ventral view of head of juvenile (above). N & T as in 2.1.
79
Genus Hemipristis Agassiz, 1843
The genus Hemipristis was first described on the basis of
fossil teeth. One living species.
Snaggletooth
9.21 Hemipristis eJongata
(Klunzinger, 1871)
Lostandhaai
Dirrhizodon elongatus Klunzinger, 1871 : 665 (Red Sea) . Hemipristis
elongatus: Bass et aI., 1975: 29* .
Interdorsal ridge sometimes present. Spiracles present. Definite upper
dl
I·
T h 14 - 14
h ' hd"
.
I
an ower Ipgrooves. eet 18-18; upper teet WIt Istmchve, ong,
slightly curved cusps strongly serrated on both sides .
Viviparous, 6-8 pups per litter; born at 45-55 cm; attains
about 2.4 m. Common in shallow waters of northern Indian
Ocean; Vietnam to Red Sea. Also Madagascar and Mozambique; 1 specimen from southern Natal.
9: CARCHARHINIDAE (REQUIEM SHARKS)
Genus Hypoga/eus Smith, 1957
One species.
9.22 HypogaJeus hyugaensis
(Miyosi, 1939)
Lesser soupfin shark
Kleiner sopvinhaai
Eugaleus hyugaensis Miyosi, 1939: 91, Fig. 1 (Papas) . Hypogaleus zanzibarensis Smith, 1957: 589, Fig. 2, PI. 19 (Zanzibar). Hypogaleus
hyugaensis: Bass et aI., 1975: 22* .
Internal nictitans. No interdorsal ridge. Teeth smooth-edged, in 2 or 3
functional series. Tooth count about ~.
Dull grey, paler below; front part of snout slightly dusky.
Late embryos have A plain, D and C with black tips and
transparent trailing edges, C also with dark mark in angle of
trailing edge, and underside of snout with longitudinal dark
bands. Viviparous, about 11 pups per litter, born at 35 cm;
attains about 130 cm. Eats fish; too . small to be dangerous.
Taken at depths of 65 - 230 m off Zanzibar, Kenya and
Natal; also known from Japan and Taiwan .
9.22 Hypogaleus hyugaensis: 127 em mature male (Natal). Tail and ventral view of head of juvenile (above). N & T as in 2.1.
79