Critically Endangered
Dwarf gulper shark
Centrophorus atromarginatus
The dwarf gulper shark is a dogfish of the family Centrophoridae.
Appearance
The gulper shark is a slim, relatively long dogfish with two dorsal fins bearing long grooved spines. The second dorsal fin is shorter than the first, and its base is about three-fourths the length of the first dorsal fin. The color of the gulper shark is olive-grey to grey-brown or sandy grey to brown dorsally and lighter ventrally with no obvious markings in adults. Juveniles may be lighter and may have dusky tips on the dorsal and caudal fins.
The maximum total length recorded for the gulper shark is 5 ft (150 cm). Gulper shark pups average from 1 to 1.4 ft (30-42 cm) total length at birth.
Range and habitat
The dwarf gulper shark is found in the Indo-West Pacific oceans, from the Gulf of Aden, Japan and Taiwan to northern Papua New Guinea. Dogfish are most commonly found between 328 ft and 3937 ft (100-1200 meters) The dwarf gulper shark is a dogfish of the family Centrophoridae.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Sharks and rays grow slowly and have few young. A fishery that treats them as bycatch can empty a coastal form.
In crisis
Dwarf gulper shark is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Dwarf gulper shark, Wikidata item Q994653. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
