The Nursehound (or Bull Huss) is usually found in shallow waters close to rocky shores and is often seen by divers. Similar Eggcase: Similar shape to the Smallspotted Catshark eggcase, but is much larger in size .

The nursehound (Scyliorhinus stellaris), also known as the large-spotted dogfish, greater spotted dogfish or bull huss, is a species of catshark, belonging to the family Scyliorhinidae, found in the northeastern Atlantic Ocean. It is generally found among rocks …

Nursehounds lay their eggs amongst seaweed. The egg cases have curly tendrils that wrap around the seaweed to prevent the egg case from floating away. The nursehound is a nocturnal predator, hunting smaller fish close to the seafloor.

The nursehound shark lays 9-41 eggs in shallow water after mating in spring or early summer. Each of these eggs is enclosed inside a thick, rectangular, dark brown case with tendrils at each end. These tendrils keep the eggs tethered to seaweed.

Reproduction: Females lay single eggs in spring and summer and the young hatch out of their eggcases after about 9 months. Diet: Crustaceans, molluscs and fish, including small sharks. Predators: Seals, humans. Although almost identical in shape and form, Bull Huss eggcases are much larger than Small Spotted Catshark purses.

Large lesser-spotted dogfish can be confused with the bull huss, which is also known as the greater-spotted dogfish. There are several key differences. Firstly, the bull huss reaches a greater size – up to 20lbs – meaning anything larger than 5lb is almost certainly a bull huss as lesser-spotted dogfish larger than this are extremely rare.

Like the lesser-spotted dogfish they also reproduce by giving birth to young in protective egg cases known as mermaid’s purses. Worldwide distribution of the bull huss. As stated the bull huss is mostly found to the south and west of the British Isles, although it can be found in smaller numbers all around the coastline of the UK.

2009年5月5日 · The bull huss will be around 16cm, while the common dogfish are around the 10cm mark. Mating normally takes place between a single male and a single female during the autumn, the eggs of the common dogfish are laid during November to July, while those of the bull huss are laid between spring and summer.

2013年5月27日 · A small bull huss can look at first glance like a lesser spotted dogfish and is also known as the greater spotted dogfish. However the nasal flaps in the huss are clearly separated.

Unlike many sharks that give birth to live young, the bull huss lays eggs. These eggs are encased in protective structures known as “mermaid’s purses.” Each purse has curly tendrils designed to wrap around seaweed or rocky surfaces, preventing it from drifting away.