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Cephaloscyllium formosanum Teng, 1962
Formosa swellshark
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Pictures | Google image
No image available for this species;
drawing shows typical species in Scyliorhinidae.
Pictures | Google image
drawing shows typical species in Scyliorhinidae.
Common names from other countries
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks) > Scyliorhininae
Etymology: Cephaloscyllium: cephalus, from kephale (Gr.), head, referring to its very broad and depressed head; skylion, Greek for dogfish or small shark (See ETYFish); formosanum: --anum, Latin adjectival suffix that means, when attached to a name, “belonging to”: Formosa, or Taiwan, referring to type locality off southwestern coast of Taiwan (See ETYFish).
Etymology: Cephaloscyllium: cephalus, from kephale (Gr.), head, referring to its very broad and depressed head; skylion, Greek for dogfish or small shark (See ETYFish); formosanum: --anum, Latin adjectival suffix that means, when attached to a name, “belonging to”: Formosa, or Taiwan, referring to type locality off southwestern coast of Taiwan (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range Ecology
Marine; reef-associated; depth range ? - 366 m (Ref. 94801). Subtropical
Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Northwest Pacific: Taiwan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 65.6 cm TL (female)
Max length : 65.6 cm TL (female)
Short description Identification keys | Morphology | Morphometrics
This species is distinguished by the following characters: with four broad dark saddle blotches before first dorsal fin, the first saddle just behind eye, second saddle over gill openings, third saddle above inner margin of pectoral fin and fourth above pelvic fin origin; presence of a narrow dark band between third and fourth saddle blotches; body with numerous small white spots; margins of egg case indented (Ref. 94801).
A medium-sized species that matures at size less than 65 cm TL (Ref. 94801).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 130435: Version 2024-1)
Least Concern (LC) ; Date assessed: 27 August 2019
Threat to humans
Harmless
Human uses
FAO(Publication : search) | FishSource |
More information
Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Home ranges
Ecology
Home ranges
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Reproduction
Maturity
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Anatomy
Gill area
Brain
Otolith
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
Heritability
Genetics
Heterozygosity
Heritability
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Tools
E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree
| Catch-MSY |
Special reports
Download XML
Internet sources
Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | 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 based on models
Phylogenetic diversity index (Ref. 82804): PD50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00138 - 0.00502), b=3.21 (3.04 - 3.38), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278): 4.1 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (46 of 100).