Finback catshark
| Finback catsharks | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Superorder: | Selachimorpha |
| Order: | Carcharhiniformes |
| Family: |
Proscylliidae Compagno, 1984 |
| Genera | |
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The finback catsharks are a small family, the Proscylliidae, of ground sharks. They can be found in warm seas worldwide and are often the most numerous and common shark in tropical regions. They are generally less than 1 m in length, and are slow-moving predators that feed on bony fish and small invertebrates. Although some bear live young, the majority lay eggs with almost fully developed young; these egg cases, known as "mermaid's purses", are unique in appearance to each species.
Proscyllium habereri, also known as the graceful catshark, was first discovered by Hildendorf in 1901.
Proscyllium venustum is found in temperate regions. It is distributed along the Northwest Pacific, primarily Japan. These sharks are oviparous; they lay eggs in pairs in which the embryos feed solely on yolk. This species is considered harmless to humans.
A newly discovered species within the Proscyllidae family, Proscyllium magnificum has little supporting research. It is tan in coloration with dark spots and blotches. The body is considered slender and firm. This species grows to be at least 450 mm in length. They have been found in tropical waters throughout the eastern Indian Ocean off the coast of Myanmar.
Eridacnis radcliffei is commonly known as the pygmy ribbontail catshark. It is known to be one of the smallest sharks within its species, with a maximum length around 257 mm. It is distributed in the waters surrounding the Philippines, along with the Indo-West Pacific ocean. They are found located near muddy bottoms of the continental shelves. It is not a species directly targeted by the fishing industry; however, it is negatively impacted as bycatch by the shrimping industry due to shrimp being its primary food source. They are considered harmless to humans.
Eridacnis barbouri, also known as the Cuban ribbontail catshark, can be found in deep water along the upper continental shelf. They are distributed throughout the western central Atlantic. Their primary food source is small fishes, crustaceans, and cephalopods. Having two young per litter, ranging in size at birth to over 10 cm, this species is ovoviviparous. This species is viewed as harmless to humans.
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