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Scymnodon squamulosus (Gunther, 1877)
Life   Vertebrata   Fish   Somniosidae   Scymnodon

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You have requested an unaccepted/invalid name entry, the corresponding accepted/valid name is presented here as the result.
Kingdom Animalia  
 Phylum Chordata  
 Class Chondrichthyes  
 Order Squaliformes  
 Family Somniosidae  
 Genus Zameus  
  Zameus squamulosus    (Günther, 1877) 
Provider: Pofeng Lee& Shoou-Jeng Joung 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Centrophorus squamulosus Centroscymnus obscurus Centroscymnus squamulosus Scymnodon niger Scymnodon squamulosus   details
Citation: 李柏峰(2003)碩士論文
Character: Head is rather low and flat; the snout is rather narrow and long, and the preoral length is greater than the mouth width and almost equal in distance from lower symphysis to the first gill slits; The mouth is fairly narrow, short and transverse; postoral grooves are very long, much longer than upper labial furrows; gill slits are rather short, the longest and is less than half the eye length. Pectoral fins are fairly broad and leaf-shaped; apices of pectoral fins fall well in front of the first dorsal spine; pelvic fins are small, about equal to the second dorsal fin; the caudal fin is with a strong subterminal notch and a short lower lobe. The lateral trunk denticles are with cross- ridges on crowns. The caudal peduncle is long, and the distance from second dorsal base to upper caudal origin about equal to second dorsal base. Distribution: Literature:. 
Habitat: A little-known deepwater shark of the western Pacific continental slope, down to at least 631 m. 
Distribution: Western Pacific from southeastern Japan to Taiwan, off southeastern Australia and New Zealand. 
Utility: Used dried and salted for human consumption and for fish meal 
Name Code: 383214
  IUCN Red List:DD      
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Scymnodon&speciesname=squamulosus ---> https://www.fishbase.in/Summary/speciesSummary.php?genusname=Scymnodon&speciesname=squamulosus
https://www.fishbase.in/Summary/speciesSummary.php?genusname=Scymnodon&speciesname=squamulosus ---> https://www.fishbase.in/summary/Scymnodon-squamulosus.html

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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Zameus squamulosus (Günther , 1877)

Velvet dogfish Add your observation in Fish Watcher
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Zameus squamulosus   AquaMaps   Data sources: GBIF OBIS
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Pictures | Google image Image of Zameus squamulosus (Velvet dogfish) Zameus squamulosus
Female picture by Cambraia Duarte, P.M.N. (c)ImagDOP

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

Elasmobranchii (sharks and rays) > Squaliformes (Bramble, sleeper and dogfish sharks) > Somniosidae (Sleeper sharks)
  More on author: Günther .

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

Marine; benthopelagic; depth range 0 - 2200 m (Ref. 6871 ), usually 400 - 900 m (Ref. 55584 ).   Deep-water; 68°N - 56°S, 180°W - 180°E

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

Atlantic, Indian and Pacific tropical oceans.

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 59 - ? cm
Max length : 84.0 cm TL male/unsexed; (Ref. 6871 )

Short description Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 0; Anal spines : 0; Anal soft rays : 0. Black in color, small dorsal fin spines, moderately long snout, small lanceolate teeth without cusplets in upper jaw and large high, knife-cusped cutting teeth in lower jaw, mouth moderately wide and nearly transverse, caudal fin with strong subterminal notch and short lower lobe (Ref. 247 ).

Biology     Glossary (e.g. epibenthic)

Demersal or pelagic near continental slopes and seamounts in depths of 550-2,000 m (Ref. 6871 , 58302 ). Also found from the surface to 580 m over deep water (Ref. 26346 ). Ovoviviparous (Ref. 205 ). Used dried and salted for human consumption and for fishmeal (Ref. 6871 ). Caught rarely by longline fisheries operating in deepwater; also caught, but rarely landed, by pelagic tuna longline fisheries (Ref.58048).

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

Distinct pairing with embrace (Ref. 205 ). Presumambly viviparous, with yolk-sac dependancy (Ref.58048).

Main reference Upload your references | References | Coordinator | Collaborators

Compagno, L.J.V. , 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247 )

IUCN Red List Status (Ref. 119314 )

  Data deficient (DD)  ; Date assessed: 31 January 2006

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans


Human uses

Fisheries: minor commercial 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 | BOLDSystems | 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 | SeaLifeBase | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 4.1 - 12.6, mean 7.7 (based on 948 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00501 (0.00208 - 0.01208), b=3.13 (2.92 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  4.0   ±0.60 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 ):  Moderate to high vulnerability (51 of 100) . Price category (Ref. 80766 ):   Unknown .

Entered by Carpenter, Kent E. Modified by Wiethüchter, Anita Fish Forum
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