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Cephaloscyllium umbratile Jordan and Fowler, 1903
Life   Vertebrata   Fish   Scyliorhinidae   Cephaloscyllium

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Following modified from Taiwan Biodiversity National Information Network
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Kingdom Animalia  
 Phylum Chordata  
 Class Chondrichthyes  
 Order Carcharhiniformes  
 Family Scyliorhinidae  
 Genus Cephaloscyllium  
  Cephaloscyllium umbratile    Jordan & Fowler, 1903 
Provider: Pofeng Lee& Shoou-Jeng Joung 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Cephaloscyllium formosanum Cephaloscyllium isabellum   details
Citation: 臺灣魚類誌(沈等, 1993) 中國動物誌-圓口綱及軟骨魚綱(朱等, 2001) FAO Species Catalogue, Vol.4 Sharks of the world Schaaf-Da Silva, J. A. and D. A. Ebert. 2008 (8 Sept.). A revision of the western North Pacific swellsharks, genus Cephaloscyllium Gill 1862 (Chondrichthys: Carcharhiniformes: Scyliorhinidae), including descriptions of two new species. Zootaxa No. 1872: 1-8
Character: A catshark with a stout body, no labial furrows, snout broadly rounded-angular in dorsoventral view, rather short and broad; anterior nasal flaps subtriangular, not overlapping mouth posteriorly. Claspers short and stout. Colour pattern variegated, with up to 11 dark brown irregular saddles and laterally interdigitating blotches in a checkerboard pattern in the typical New Zealand form, but with more irregular dark blotches and mottling in Taiwanese and Japanese representatives of the species (if not distinct); a scattering of numerous dark brown or blackish' small spots on a grey or brown background; underside of head and abdomen unspotted; fins without conspicuous light margins. A large species (see size below). "pseudo-umbratile", pigmy swellshark Western North Pacific "umbratile" True isabellum from New Zealand.  
Habitat: A common, sluggish inshore and offshore warm-temperate catshark found on rocky and sandy bottoms in deepish water on the continental and insular shelves, at depths of 18 to 220 m; said to avoid open areas but favours reefs. Can expand itself with air or w 
Distribution: Western Pacific: New Zealand, Taiwan and Japan (southeastern Honshu). 
Utility: None or limited at present, caught by Commercial bottom trawlers. 
Name Code: 383102
  IUCN Red List:DD       Marine     
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Following modified from FishBase
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Cephaloscyllium&speciesname=umbratile ---> http://www.fishbase.org/summary/Cephaloscyllium-umbratile.html
http://www.fishbase.org/summary/Cephaloscyllium-umbratile.html ---> https://www.fishbase.se/summary/Cephaloscyllium-umbratile.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Cephaloscyllium umbratile Jordan & Fowler , 1903

Blotchy swell shark Add your observation in Fish Watcher
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
Upload your photos  and  videos
Pictures | Google image 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 authors: Jordan & Fowler .

Environment: milieu / climate zone / depth range / distribution range Ecology

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

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: L m   ? , 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. 120744 )

  Data deficient (DD)  ; Date assessed: 01 January 2007

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless (Ref. 12951 )

Human uses

Aquarium: public aquariums FAO(Publication : search ) | FishSource |

More information

FAO areas
Food items
Food consumption
Common names
Spawning aggregation
Egg development
Larval dynamics
Aquaculture profile
Allele frequencies
Mass conversion
Stamps, Coins Misc.
Swim. type
Gill area


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Summary page | Point data | Common names | Photos

Internet sources

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

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 11.5 - 26.5, mean 19.2 (based on 435 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00316 (0.00159 - 0.00631), b=3.12 (2.95 - 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) .

Entered by Garilao, Cristina V. Modified by Luna, Susan M. Fish Forum
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