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Cephaloscyllium umbratile  Jordan & Fowler, 1903

Blotchy swell shark
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Cephaloscyllium umbratile   AquaMaps   Data sources: GBIF OBIS
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Image of Cephaloscyllium umbratile (Blotchy swell shark)
Cephaloscyllium umbratile
Picture by Shao, K.T.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks)
Etymology: Cephaloscyllium: Greek, kephale = head + skylion = dogfish (Ref. 80388);  umbratile: Named from the Latin 'umbra' meaning shaded (Ref. 80388).   More on author: Jordan, Fowler.

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 20 - 500 m (Ref. 94801).   Subtropical, preferred ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western North Pacific: Japan Sea, East China Sea (Japan, Korea, China and Taiwan) (Ref. 94801); possibly up to New Zealand. Similar to Cephaloscyllium isabellum but the color pattern is different.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 95 - 101.1 cm
Max length : 120 cm TL male/unsexed; (Ref. 95495); 110.0 cm (female)

Short description Morphology | Morphometrics

Overall color is lighter than C. isabellum, with irregular saddles and numerous blotches and a spotless ventral surface (Ref. 12951).

Biology     Glossary (e.g. epibenthic)

Found on rocky reefs (Ref. 12951); near shore, down to 300 m on sandy mud bottoms (Ref. 11230). Feeds mainly on bony fishes such as mackerel, sardines, filefishes, moray eels, dragonets, flatfishes and cowfishes (Ref. 12951) but also preys on elasmobranches and squid (Ref. 12951). Oviparous (Ref. 50449). Thrives and breeds in public aquariums (Ref. 12951).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous (Ref. 559), two tendril eggcases are deposited at one time (Ref. 12951). Embryos feed solely on yolk (Ref. 50449). Eggs hatch after about 1 year and size upon hatching is 16-22 cm (Ref. 12951).

Main reference Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators

Nakaya, K., S. Inque and H.-C. Ho, 2013. A review of the genus Cephaloscyllium (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Taiwanese waters. Zootaxa 3752(1):101-129. (Ref. 94801)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless (Ref. 12951)




Human uses

Aquarium: public aquariums
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
Ecosystems
Occurrences
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Ecology
Diet
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Food consumption
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Common names
Synonyms
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Predators
Ecotoxicology
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Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
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Morphometrics
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Ciguatera
Speed
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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00157 - 0.00666), b=3.11 (2.93 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.5   ±0.76 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153):  High to very high vulnerability (68 of 100) .