1. Scyllium canicula. 2. Scyllium catulus.
1a. under side of head. 1b. egg case with front wall removed showing embryo. 1c. skin.
2a. under side of head.

Date between 1880 and 1884
Source https://www.biodiversitylibrary.org/page/38914986
Author C. Achilles; Francis Day; Mintern Bros.
Full title The fishes of Great Britain and Ireland
Source: https://commons.wikimedia.org/wiki/File%3AThe_fishes_of_Great_Britain_and_Ireland_%28Plate_CLIX%29_%286935023845%29.jpg


1. Scyllium canicula = Scyliorhinus canicula (small-spotted catshark)

The small-spotted catshark (Scyliorhinus canicula), also known as the sandy dogfish, lesser-spotted dogfish, rough-hound or morgay, is a catshark of the family Scyliorhinidae. Scyliorhinus canicula is found on the continental shelves and the uppermost continental slopes off the coasts of Norway and the British Isles south to Senegal and in the Mediterranean. The lesser-spotted dogfishes are small, shallow-water sharks with a slender body and a blunt head. The upper side of the body is greyish brown with dark brown spots. Individual small-spotted catsharks have different personality traits. Some individuals are more sociable than others, some more aggressive, some more exploratory in nature. Order: Carcharhiniformes > Family: Scyliorhinidae > Genus: Scyliorhinus > Species: Scyliorhinus canicula


2. Scyllium catulus = Scyliorhinus stellaris (nursehound, large-spotted catshark)

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. Scyliorhinus stellaris is generally found among rocks or algae at a depth of 20–60m. Growing up to 1.6 m long, the nursehounds have a robust body with a broad, rounded head and two dorsal fins placed far back. Order: Carcharhiniformes > Family: Scyliorhinidae > Genus: Scyliorhinus > Species: Scyliorhinus stellaris