The granular dogfish (Centroscyllium granulatum) is a little-known, very small dogfish shark of the family Etmopteridae, endemic to the Falkland Islands.
Physical characteristics
The granular dogfish has no anal fin, two dorsal spines with the second one much larger than the first, a large second dorsal fin, a long abdomen, small pectoral and pelvic fins, a large eye, prominent nostrils and spiracles, and brownish-black coloration. It is very small, growing to only 28 cm.
Distribution
They have only been found around the Falkland Islands in the South Atlantic.
Habits and habitat
Almost nothing is known about this shark. It has been caught at around 450 m depth.
References
Sources
|
|---|
|
|
|---|
Hemigaleidae (Weasel sharks) | | Hemipristis | |
|---|
| Chaenogaleus |
- Hooktooth shark (C. macrostoma)
|
|---|
| Hemigaleus | |
|---|
| Paragaleus |
- Whitetip weasel shark (P. leucolomatus)
- Atlantic weasel shark (P. pectoralis)
- Slender weasel shark (P. randalli)
- Straight-tooth weasel shark (P. tengi)
|
|---|
|
|---|
| Leptochariidae | |
|---|
Proscylliidae (Finback sharks) | | Ctenacis |
- Harlequin catshark (C. fehlmanni)
|
|---|
| Eridacnis | |
|---|
| Proscyllium |
- Graceful catshark (P. habereri)
- P. venustum
|
|---|
|
|---|
| Pseudotriakidae | |
|---|
Sphyrnidae (Hammerhead sharks) | |
|---|
Triakidae (Houndsharks) | | Furgaleus | |
|---|
| Galeorhinus | |
|---|
| Gogolia |
- Sailback houndshark (G. filewoodi)
|
|---|
| Hemitriakis |
- Deepwater sicklefin hound shark (H. abdita)
- Sicklefin hound shark (H. falcata)
- Japanese topeshark (H. japanica)
- Whitefin topeshark (H. leucoperiptera)
- Ocellate topeshark (Hemitriakis Sp.A)
|
|---|
| Hypogaleus |
- Blacktip tope (H. hyugaensis)
|
|---|
| Iago |
- Longnose houndshark (I. garricki)
- Bigeye houndshark (I. omanensis)
- Lowfin houndshark (Iago Sp.A)
|
|---|
Mustelus (Smooth-hounds) | |
|---|
| Scylliogaleus |
- Flapnose houndshark (S. quecketti)
|
|---|
| Triakis | |
|---|
|
|---|
| Carcharhinidae |
- Large family listed below
|
|---|
| Scyliorhinidae |
- Large family listed below
|
|---|
|
|
|
Family Scyliorhinidae (Catsharks) |
|---|
| Apristurus | |
|---|
| Asymbolus |
- Australian spotted catshark (A. analis)
- A. funebris
- Western spotted catshark (A. occiduus)
- Pale spotted catshark (A. pallidus)
- A. parvus
- A. rubiginosus
- Variegated catshark (A. submaculatus)
- Gulf catshark (A. vincenti)
|
|---|
| Atelomycterus | |
|---|
| Aulohalaelurus |
- New Caledonia catshark (A. kanakorum)
- Australian blackspotted catshark (A. labiosus)
|
|---|
| Cephaloscyllium | |
|---|
| Cephalurus | |
|---|
| Figaro | |
|---|
| Galeus | |
|---|
| Halaelurus | |
|---|
| Haploblepharus | |
|---|
| Holohalaelurus | |
|---|
| Parmaturus |
- White-tip catshark (P. albimarginatus)
- White-clasper catshark (P. albipenis)
- Beige catshark (P. bigus)
- Campeche catshark (P. campechiensis)
- Velvet catshark (P. lanatus)
- McMillan's catshark (P. macmillani)
- Blackgill catshark (P. melanobranchus)
- Salamander shark (P. pilosus)
- Filetail catshark (P. xaniurus)
- Shorttail catshark (Parmaturus sp. A)
|
|---|
| Pentanchus |
- Onefin catshark (P. profundicolus)
|
|---|
| Poroderma | |
|---|
| Schroederichthys | |
|---|
| Scyliorhinus | |
|---|
|
|
|
|
|
|
|
|
|
|---|
Centrophoridae (Gulper sharks) | |
|---|
| Dalatiidae | |
|---|
| Etmopteridae | |
|---|
Oxynotidae (Rough sharks) | |
|---|
Somniosidae (Sleeper sharks) | | Centroscymnus | |
|---|
| Centroselachus | |
|---|
| Proscymnodon |
- Largespine velvet dogfish (P. macracanthus)
- Plunket shark (P. plunketi)
|
|---|
| Scymnodalatias | |
|---|
| Scymnodon | |
|---|
| Somniosus | |
|---|
| Zameus | |
|---|
|
|---|
Squalidae (Dogfish sharks) | | Cirrhigaleus |
- Roughskin spurdog (C. asper)
- Mandarin dogfish (C. barbifer)
|
|---|
Squalus (Spurdogs) | |
|---|
|
|---|
|
|
|
Taxon identifiers |
|---|
| Centroscyllium granulatum | |
|---|