The shortnose demon catshark (''Apristurus internatus'') is a

catshark Catsharks are ground sharks of the family Scyliorhinidae. They are the largest family of sharks with around 160 species placed in 17 genera. Although they are generally known as catsharks, some species can also be called dogfish due to previous ...

of the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Scyliorhinidae found only in deep water in the East China Sea. Its length is up to 40 cm. ''A. internatus'' is known only from the

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of seve ...

(a 49.1-cm-total length female) and a

paratype In zoology and botany, a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents, but it is not the holotype (and in botany is also neither an isotype nor a syntype). O ...

(a 40.3-cm male), both caught in the East China Sea, probably taken as bycatch in deepwater trawl fisheries. The reproduction of this catshark is

oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), a ...

References

*Nakaya, K. and K. Sato, 1999. Species grouping within the genus Apristurus (Elasmobranchii: Scyliorhinidae). p. 307-320 In Séret B. & J.-Y. Sire ds Proc. 5th Indo-Pac. Fish Conf., Noumea, 1997. shortnose demon catshark Marine fauna of East Asia East China Sea Taxa named by Deng Si-Ming Taxa named by Zhan Hong-Xi shortnose demon catshark {{shark-stub