Zesticelus
Z. bathybius
Z. profundorum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Cottidae
Subfamily: Cottinae
Genus: Zesticelus
Jordan & Evermann, 1896
Type species
Acanthocottus profundorum

Zesticelus is a genus of marine ray-finned fishes belonging to the family Cottidae, the typical sculpins. These fishes are found in the North Pacific Ocean.

Taxonomy

Zesticelus was first proposed as a monospecific genus in 1896 by the American ichthyologists David Starr Jordan and Barton Warren Evermann with Acanthocottus profundorum designated as its type species.[1] A. profundorum was originally described in 1896 by Charles Henry Gilbert who gave its type locality as the Bering Sea north of Unalaska Island.[2] The 5th edition of Fishes of the World classifies the genus Zesticelus within the subfamily Cottinae of the family Cottidae,[3] however, other authors classify the genus within the subfamily Psychrolutinae of the family Psychrolutidae.[1]

Species

There are currently three recognized species in this genus:[4]

  • Zesticelus bathybius (Günther, 1878)
  • Zesticelus ochotensis Yabe, 1995
  • Zesticelus profundorum (C. H. Gilbert, 1896) (Flabby sculpin)

There is a fourth species which has an uncertain taxonomic status, Zesticelus japonicus which was described from Niigata in Japan in 1957 but the type has been lost.[2]

Characteristics

Zesticelus sculpins havee naked bodies which do not have scales or cirri. The branchiostegal membranes that are united and old over the isthmus, There are large pores in the sensory canals on the head, The highest spine on the preoperculum is long and slightly curved. There are teeth on the prevomer but not on the palatine.[5] These are small fishes with the largest species, Z. profundorum, having a maximum published total length of 6.4 cm (2.5 in).[4]

Distribution

Zesticelus sculpins are found in the North Pacific Ocean from Japan to California. They are deep sea species.[5]

References

  1. 1 2 3 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Psychrolutinae". Catalog of Fishes. California Academy of Sciences. Retrieved 2 March 2023.
  2. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Zesticelus". Catalog of Fishes. California Academy of Sciences. Retrieved 1 March 2023.
  3. ↑ J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 467–495. ISBN 978-1-118-34233-6.
  4. 1 2 Froese, Rainer and Pauly, Daniel, eds. (2012). Species of Zesticelus in FishBase. December 2012 version.
  5. 1 2 M. Yabe (1995). "A new species of sculpin, Zesticelus ochotensis (Scorpaeniformes: Cottidae), from the southwestern Okhotsk Sea". Japanese Journal of Ichthyology. 42 (1): 17–20.
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