Arabian catshark
{{Short description|Species of shark}}
{{Speciesbox
| status = DD
| status_system = IUCN3.1
| taxon = Bythaelurus alcockii
| authority = (Garman, 1913)
| synonyms =
Halaelurus alcockii Garman, 1913
}}
The Arabian catshark (Bythaelurus alcockii) is a species of shark belonging to the family Pentanchidae, the deepwater catsharks.{{cite journal | author = Ebert, D.A. | author2 = Clerkin, P.J. | name-list-style = amp | year = 2015 | title = A new species of deep-sea catshark (Scyliorhinidae: Bythaelurus) from the southwestern Indian Ocean | journal = Journal of the Ocean Science Foundation | volume = 15 | pages = 53–63 | url = http://www.oceansciencefoundation.org/josf/josf15e.pdf }} It can grow up to {{convert|30|cm}} long,{{FishBase| genus = Bythaelurus| species = alcockii | month = April | year = 2015}} and lives in open seas. It is only known from a single specimen, now lost, which was found on the continental slope of the Arabian Sea.