Bathymaster

Bathymaster
Alaskan Ronquil (B. caeruleofasciatus)
Searcher (B. signatus)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Bathymasteridae
Genus: Bathymaster
Cope, 1873
Type species
Bathymaster signatus
Cope, 1873[1]

Bathymaster is a genus of marine ray-finned fishes belonging to the family Bathymasteridae, the ronquils. These fishes are found in the northern Pacific Ocean.

Taxonomy

Bathymaster was first proposed as a monotypic genus in 1873 by the American paleontologist and biologist Edward Drinker Cope when he described its type species Bathymaster signatus from Sitka, Alaska.[1][2] The genus is classified in the family Bathymasteridae which is in the Scorpaeniform suborder Zoarcoidei.[3] The genus name, Bathymaster, can be translated from the Greek to mean "deep searcher".[4]

Species

There are currently four recognized species in this genus:[5]

Characteristics

Bathymaster ronquils are distinguished from other genera of ronquils by having naked, i.e. scaleless, cheeks and opercula. there are 5 or 6 pores on the mandibles and the pores on the preoperculum are grouped in an 8:1:1 pattern, There are between 83 and 102 pored scales in the lateral line and these are not greater in size than the nearby scales. The dorsal fin is not continuous and the first dorsal fin has 3 pliable spines.[6] The largest species is B. signatus with a maximum published total length of 38 cm (15 in) while the smallest is B. derjugini which has a maximum published total length of 18 cm (7.1 in).[5]

Distribution and habitat

Bathymaster ronquils are found in the northern North Pacific from Washington north and west to Hokkaido.[7] The searcher has been found as deep as 300 m (980 ft) but these fishes are typically found in shallow coastal waters at depths no greater than 200 m (660 ft).[6] They are cold water benthic fishes.[7]

References

  1. ^ a b Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Bathymasteridae". Catalog of Fishes. California Academy of Sciences. Retrieved 27 July 2022.
  2. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Bathymaster". Catalog of Fishes. California Academy of Sciences. Retrieved 27 July 2022.
  3. ^ J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 478–482. ISBN 978-1-118-34233-6. Archived from the original on 2019-04-08. Retrieved 2022-07-27.
  4. ^ Christopher Scharpf & Kenneth J. Lazara, eds. (4 July 2021). "Order Perciformes (Part 11): Suborder Cottoidea: Infraorder Zoarcales: Families: Anarhichadidae, Neozoarcidae, Eulophias, Stichaeidae, Lumpenidae, Ophistocentridae, Pholidae, Ptilichthyidae, Zaproridae, Cryptacanthodidae, Cebidichthyidae, Scytalinidae and Bathymasteridae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 27 July 2022.
  5. ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Bathymaster". FishBase. February 2022 version.
  6. ^ a b Stevenson, Duane; Ann C. Matarese (2005). "The ronquils: a review of the North Pacific fish family Bathymasteridae (Actinopterygii: Perciformes: Zoarcoidei)". Proceedings of the Biological Society of Washington. 118: 367–406. doi:10.2988/0006-324X(2005)118[367:TRAROT]2.0.CO;2.
  7. ^ a b Mecklenburg, C. W. (2003). "Family Bathymasteridae Jordan & Gilbert 1883 — ronquils" (PDF). California Academy of Sciences Annotated Checklists of Fishes No. 7. California Academy of Sciences.