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- Eleven of these are of the shark variety, who live in blissful harmony with stingrays, thornback rays, conger eels and dogfish, to name but a few.
- In the intestine there is a spiral valve, like that in the dogfish, which is not present in more advanced bony fishes.
- Lesser spotted dogfish are amongst the most common bottom dwelling fish in many areas and can be a real nuisance when trying to catch more desirable species.
- In some areas small skates and dogfish (a small shark species) appear to have taken over the cod's niche in the ecosystem.
- I also had a chance encounter with a lesser-spotted dogfish, so common on the West Coast but fairly rare here.