9: CARCHARHINIDAE (REQUIEM SHARKS)
9.26 Mustelus mosis
Hemprich & Ehrenberg, 1899
Hardnosed smooth-hound
Hardeneus-hondhaai
Mustelus mosis Hemprich & Ehrenberg, 1899: PI. 7, Fig. 3 (Red Sea).
? Mustelus canis (non Mitchill): van der Elst, 1981: 41*.
Internostril distance 2.5-2.8% TL; rear margin of P 10-12% TL; upper
and lower lip folds subequal. Adults with hyperca\Cification of rostral cartilages at tip of snout, scapulocoracoid tips, radial cartilages in axil of 2nd
D 1 preorbital processes of skull, 6th-8th hypochordal radials of C,
hyomandibulars and proximal radials of P. These sites of hyperca\Cification are often visible externally as hard lumps.
Colour immaculate tan or greyish tan dorsally; trailing
edge of 1st D and P pale. Attains at least 130 cm; males
mature at 83-85 cm, females at 95-100 cm, and pups are
born at 26-28 cm. Red Sea and western Indian Ocean, extending south to Durban.
Smooth-hound
9.27 Mustelus mustelus
(Linnaeus, 1758)
Hondhaai
Squalus mustelus Linnaeus, 1758: 235 (European seas). ?Mustelus
mustelus: Smith, SFSA No. 20 (in part).
Internostril distance 2.4-3.2% TL; rear margin of P 10-14'% TL; upper
lip folds longer than lower. Large adults without hyperca\Cification of
skeleton, except for scapulocoracoid tips of some specimens. Placentae
well developed during latter part of gestation period. The number of precaudal vertebrae of M. mustelus in South African waters (81-95) is usually
9.27 Mus/a/us muste/us: 142 em female (Algoa Bay).
9.28 Mus/e/us pa/umbes: 88 em mature male holotype (Knysna).
82
mOre than in specimens from the Mediterranean and west coast of Africa
(70-89).
Generally uniform greyish dorsally, some specimens with
a few irregular darker spots. Attains at least 150 cm; males
mature at 110-115 cm, females at 120-130 cm, and the young
are born at 35-39 cm. Mediterranean and west coast of
Africa south to Namibia and round our south coast to the
Fish River. Commonly caught by shore anglers.
9.28 Mustelus palumbes
Smith, 1957
PLATE 4
Whitespotted smooth-hound
Witkol-hondhaai
?Mustelus manazo (non Bleeker): Smith, SFSA No. 17* (in part).
?Mustelus canis (non Mitchill): Smith, SFSA No. 19* (in part).
?Mustelus mustelus (non Linnaeus): Smith, SFSA No. 20 (in part).
Mustelus palumbes Smith, 1957: 358, Fig. 1 (Knysna); 1961: 565, No. 19.
Internostril distance 2.4-2.9% TL; rear margin of P 12-15% TL; upper
lip folds distinctly longer than lower. Buccopharyngeal cavity mostly
covered by denticles. No hyperca\Cification of skeleton. Precaudal vertebrae 74-88. M. manazo Bleeker (of the northern Indian Ocean and western Pacific) has P length 11-15% TL and A height 2.2-3.4% TL (versus 1518% and 3.2-4.1 % in M. palumbes).
Colour variable, the small white spots are distinct on
some sharks, faint white specks on others, and not discernible on a few. Attains 110 cm; males mature at 75-79 cm,
females at 79-83 cm, and pups are born at about 25 cm.
Known only from Walvis Bay to Algoa Bay.
9.26 Mustelus mosis
Hemprich & Ehrenberg, 1899
Hardnosed smooth-hound
Hardeneus-hondhaai
Mustelus mosis Hemprich & Ehrenberg, 1899: PI. 7, Fig. 3 (Red Sea).
? Mustelus canis (non Mitchill): van der Elst, 1981: 41*.
Internostril distance 2.5-2.8% TL; rear margin of P 10-12% TL; upper
and lower lip folds subequal. Adults with hyperca\Cification of rostral cartilages at tip of snout, scapulocoracoid tips, radial cartilages in axil of 2nd
D 1 preorbital processes of skull, 6th-8th hypochordal radials of C,
hyomandibulars and proximal radials of P. These sites of hyperca\Cification are often visible externally as hard lumps.
Colour immaculate tan or greyish tan dorsally; trailing
edge of 1st D and P pale. Attains at least 130 cm; males
mature at 83-85 cm, females at 95-100 cm, and pups are
born at 26-28 cm. Red Sea and western Indian Ocean, extending south to Durban.
Smooth-hound
9.27 Mustelus mustelus
(Linnaeus, 1758)
Hondhaai
Squalus mustelus Linnaeus, 1758: 235 (European seas). ?Mustelus
mustelus: Smith, SFSA No. 20 (in part).
Internostril distance 2.4-3.2% TL; rear margin of P 10-14'% TL; upper
lip folds longer than lower. Large adults without hyperca\Cification of
skeleton, except for scapulocoracoid tips of some specimens. Placentae
well developed during latter part of gestation period. The number of precaudal vertebrae of M. mustelus in South African waters (81-95) is usually
9.27 Mus/a/us muste/us: 142 em female (Algoa Bay).
9.28 Mus/e/us pa/umbes: 88 em mature male holotype (Knysna).
82
mOre than in specimens from the Mediterranean and west coast of Africa
(70-89).
Generally uniform greyish dorsally, some specimens with
a few irregular darker spots. Attains at least 150 cm; males
mature at 110-115 cm, females at 120-130 cm, and the young
are born at 35-39 cm. Mediterranean and west coast of
Africa south to Namibia and round our south coast to the
Fish River. Commonly caught by shore anglers.
9.28 Mustelus palumbes
Smith, 1957
PLATE 4
Whitespotted smooth-hound
Witkol-hondhaai
?Mustelus manazo (non Bleeker): Smith, SFSA No. 17* (in part).
?Mustelus canis (non Mitchill): Smith, SFSA No. 19* (in part).
?Mustelus mustelus (non Linnaeus): Smith, SFSA No. 20 (in part).
Mustelus palumbes Smith, 1957: 358, Fig. 1 (Knysna); 1961: 565, No. 19.
Internostril distance 2.4-2.9% TL; rear margin of P 12-15% TL; upper
lip folds distinctly longer than lower. Buccopharyngeal cavity mostly
covered by denticles. No hyperca\Cification of skeleton. Precaudal vertebrae 74-88. M. manazo Bleeker (of the northern Indian Ocean and western Pacific) has P length 11-15% TL and A height 2.2-3.4% TL (versus 1518% and 3.2-4.1 % in M. palumbes).
Colour variable, the small white spots are distinct on
some sharks, faint white specks on others, and not discernible on a few. Attains 110 cm; males mature at 75-79 cm,
females at 79-83 cm, and pups are born at about 25 cm.
Known only from Walvis Bay to Algoa Bay.