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Scyliorhinidae catsharks may be distinguished by their elongated, cat-like eyes and two small dorsal fins set far back. Most species are fairly small, growing no longer than 80 cm (31 in); a few, such as the nursehound (Scyliorhinus stellaris) can reach 1.6 m (5.2 ft) in length.
The surface of the case is somewhat translucent, smooth, and glossy. The case is a golden brown color when first laid, and becomes dark brown in sea water. [4] Egg cases produced by Atlantic sharks measure 3.5–6.5 cm (1.4–2.6 in) long and 1.4–3.0 cm (0.55–1.18 in) across.
Pentanchidae, a family of ground sharks with the overall name deepwater catsharks, but many species are referred to as "catshark". This species in this family were formerly included in the Scyliorhinidae. Atelomycteridae, a family of ground sharks with the overall name coloured catsharks, but many species are referred to as "catshark". This ...
The egg case which contains the embryo is approximately 2.5 centimeters (0.98 in)–5.1 centimeters (2.0 in) by 7.6 centimeters (3.0 in)–13 centimeters (5.1 in). [2] The embryos will feed solely on yolk before they hatch. [3] The gestation time depends on water temperature but is typically between 9–12 months. [5]
Bythaelurus bachi, commonly known as Bach's catshark, is a species of shark belonging to the family Pentanchidae, the deepwater catsharks. This shark is found on the southern Madagascar Ridge in the southwestern Indian Ocean. [2] [1] This stout-bodied catshark is thought to inhabit the deep sea at depths of 910–1,365 m (2,986–4,478 ft). [2]
Egg cases usually measure 4 cm by 2 cm, without ever exceeding 6 cm (2.4 in). [9] These egg cases can be found around the coasts of Europe. The embryos develop for 5–11 months depending on the sea temperature, and the young are born with a measurement of 9–10 cm (3.5–3.9 in). Spawning can take place almost year round. [9]
Scyliorhinus meadi, the blotched catshark, is a little-known species of catshark, and part of the family Scyliorhinidae, found in the western central Atlantic Ocean. It inhabits banks of deep-sea coral at depths of 329–548 m (1,079–1,798 ft), feeding on cephalopods, shrimp, and bony fishes. This species can be identified by its wide body ...
The smooth, cream-colored egg cases measure 12 cm (4.7 in) long, and have long, spiral tendrils at the corners that allow them to be fastened to underwater objects. [1] [9] Newly hatched sharks measure 16 cm (6.3 in) long; males and females mature sexually at 60 cm (24 in) and 80 cm (31 in) long respectively. [5]