The dwarf gulper shark (Centrophorus atromarginatus) is a dogfish of the family Centrophoridae.
| Dwarf gulper shark | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Subdivision: | Selachimorpha |
| Order: | Squaliformes |
| Family: | Centrophoridae |
| Genus: | Centrophorus |
| Species: | C. atromarginatus
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| Binomial name | |
| Centrophorus atromarginatus Garman, 1913
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| Range of dwarf gulper shark (in blue) | |
Physical characteristics
editThe 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. Precise details of the size, age, and growth, such as size at maturity for the gulper shark, are currently unknown. 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 distance from the first and second dorsal fins is equal to the distance from the tip of the snout to the axil of the pectoral 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.
Distribution
editThe dwarf gulper shark is found in the Indo-West Pacific oceans, from the Gulf of Aden, Japan and Taiwan to northern Papua New Guinea.
Habits and habitat
editThe dwarf gulper shark lives and feeds at depths exceeding 656 ft (m) in marine and deep-water. Dogfish are most commonly found between 328 ft and 3937 ft (100-1200 meters)
References
edit- ^ Rigby, C.L.; Ebert, D.A.; Herman, K. (2020). "Centrophorus atromarginatus". IUCN Red List of Threatened Species. 2020: e.T161384A124474968. doi:10.2305/IUCN.UK.2020-3.RLTS.T161384A124474968.en. Retrieved 18 November 2021.
- 1.Froese, Rainer; Pauly, Daniel (eds.). "Centrophorus atromarginatus". FishBase. May 2006 version.
- .Tyabji, Zoya (September 2018). "New Records of Sharks (Elasmobranchii) from the Andaman and Nicobar Archipelago in India with Notes on Current Checklists". Biodiversity Data Journal. 6 (6): e28593. doi:10.3897/bdj.6.e28593. PMC 6160849. PMID 30271254.
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