Paraliparis cephalus  Gilbert, 1892

Swellhead snailfish
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Paraliparis cephalus   AquaMaps   Data sources: GBIF OBIS
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Image of Paraliparis cephalus (Swellhead snailfish)
Paraliparis cephalus
Picture by Canadian Museum of Nature, Ottawa, Canada

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

Actinopterygii (ray-finned fishes) > Scorpaeniformes (Scorpionfishes and flatheads) > Liparidae (Snailfishes)
Etymology: Paraliparis: Greek, para = the side of + Greek, liparis = fat (Ref. 45335).   More on author: Gilbert.

Environment / Climate / Range Ecology

Marine; bathydemersal; depth range 294 - 1800 m (Ref. 58496).   Deep-water, preferred ?

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North Pacific: off Commander Islands, central Bering Sea, off Unalaska Island, western Gulf of Alaska, northern British Columbiai to southern California, USA.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 26773); 8.4 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 50-57; Anal spines: 0; Anal soft rays: 44 - 51; Vertebrae: 57 - 63. Pectoral fin deeply notched (Ref. 26773). Skin transparent; musculature pale, with scattered melanophores, especially dense near dorsal and anal fin base; mouth pale or light tan; gill cavity blackish; peritoneum and stomach black; pyloric caeca pale (Ref. 26773).

Biology     Glossary (e.g. epibenthic)

Minimum depth reported at 294 m (Ref. 50610).

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

Main reference Upload your references | References | Coordinator | Collaborators

Stein, D.L., 1978. A review of the deepwater Liparidae (Pisces) from the coast of Oregon and adjacent waters. Proc. Cal. Acad. Sci. 127:1-55. (Ref. 26773)

IUCN Red List Status (Ref. 115185)

  Not Evaluated 

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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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 | 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=0.00417 (0.00184 - 0.00944), b=3.19 (2.99 - 3.39), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.4   ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (14 of 100) .