www.fao.org Copyright Michel Lamboeuf · 0
Squalus acanthias |
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See
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| Kinds | - Squalus acanthias, Whitespotted Dogfish
- Squalus acutirostris
- Squalus albifrons, Eastern Highfin Spurdog
- Squalus altipinnis, Greeneye Dogfish
- Squalus blainville, Longnose Spurdog
- Squalus chloroculus, Blainville' s Dogfish
- Squalus crassispinus, Fatspine Spurdog
- Squalus cubensis, Cuban Dogfish
- Squalus edmundsi, Edmunds' Spurdog
- Squalus grahami, Eastern Longnose Spurdog
- Squalus griffini, Northern Spiny Dogfish
- Squalus japonicus, Japanese Spurdog
- Squalus megalops, Spikey Dogfish
- Squalus melanurus, Blacktailed Spurdog
- Squalus mitsukurii, Shortspine Spurdog
- Squalus montalbani, Philippine Spurdog
- Squalus nasutus, Greeneye Dogfish
- Squalus notocaudatus, Bartail Spurdog
- Squalus rancureli, Cyrano Spurdog
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| | Overview |
Main identification features
- ds: with solid spine
- tail base: 2 keels, notch above
- teeth flat, compressed, oblique tips
- no a
SQUALUS
DOGFISH SHARKS
Sharks with cylindrical bodies, short snouts; 5 gill slits; moderate sized spiracles just behind eyes; nasal flaps short, not reaching mouth; eyes without nictitating membrane; teeth similar sized on both jaws, with strongly oblique tips; no anal fin; 2 dorsal fins with ungrooved spines, origin of the first well before the pelvic fins; tail base with a pair of keels and a pit above, tip of fin without a notch on underside; skin with denticles.
This worldwide primarily subtropical to temperate genus contains 9 species; one circumglobal temperate species enters our area.
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| References |
- Linnaeus, C., 1758., Systema Naturae, Ed. X. (Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.) Holmiae., Systema Nat. ed. 10, 1:1-824.
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| Acknowledgements | |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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Updated: 2024-09-21 01:03:38 gmt
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