Species: 1
order: squaliformes
Family: Squalidae (dogfishes)
Species: 3
FATSPINE SPURDOG
Squalus crassispinus (Last, Edmunds & Yearsley, 2007)
IUCN Status
BIOLOGY
Maximum size:
Maturity size:
Birth size:
Litter size:
Reproductive mode:
At least 67 cm TL
Males at ~45 cm TL
Unknown
Unknown
Viviparous, with yolk-sac dependency
KEY FEATURES
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Caudal fin without a terminal lobe
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First dorsal fin slightly raked back
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Snout short, bluntly pointed in ventral view
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Caudal fin with a white posterior margin, without a dark bar near its fork
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Spines in front of dorsal fins very broad based
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Teeth similar in size and shape in both jaws
PAPUAN SPURDOG
Squalus cf. edmundsi
IUCN Status
BIOLOGY
Maximum size:
Maturity size:
Birth size:
Litter size:
Reproductive mode:
Unknown; only known from a 24 cm TL female
Unknown
Unknown
Unknown
Viviparous, with yolk-sac dependency
KEY FEATURES
-
Caudal fin without a terminal lobe
-
First dorsal fin tall and upright
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Snout elongate, narrowly triangular in ventral view
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Caudal fin with a dark bar on its lower lobe from ventral fin origin to the caudal fork; tips of upper and lower lobes white
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Spines in front of dorsal fins slender; second slightly longer
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Teeth similar in size and shape in both jaws
PHILIPPINE SPURDOG
Squalus montalbani (Whitley, 1931)
IUCN Status
BIOLOGY
Maximum size:
Maturity size:
Birth size:
Litter size:
Reproductive mode:
Females 106 cm TL
Males 72 cm TL
Females at ~80 cm TL
Males at 56–67 cm TL
20–24 cm TL
4–16 pups
Viviparous, with yolk-sac dependency
KEY FEATURES
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Caudal fin without a terminal lobe
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First dorsal fin raked back
-
Snout moderately elongate, somewhat pointed
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Caudal fin with a distinct dark bar above its fork extending onto upper lobe
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Spines in front of dorsal fins slender and relatively short
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Teeth similar in size and shape in both jaws
