Pholidapus

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Pholidapus
Pholidapus dybowskii (Steindachner, 1880).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Stichaeidae
Subfamily: Opisthocentrinae
Genus: Pholidapus
T.H. Bean & B.A. Bean, 1897 [1]
Species:
P. dybowskii
Binomial name
Pholidapus dybowskii
(Steindachner, 1880)
Synonyms [1] [2]

Genus

Species

  • Centronotus dybowskii Steindachner, 1880
  • Opisthocentrus dybowskii (Steindachner, 1880)
  • Pholidapus grebnitskii T.H. Bean & B.A. Bean, 1897
  • Abryois azumae Jordan & Snyder, 1902

Pholidapus is a monotypic genus of marine ray-finned fishes belonging to the family Stichaeidae, the pricklebacks and shannies. Its only species is Pholidapus dybowskii which is found in the northwestern Pacific Ocean.

Contents

Taxonomy

Pholidapus was first proposed as a monospecific genus in 1897 by the American ichthyologists, the brothers, Tarleton Hoffman Bean and Barton Appler Bean when they described a new species, Pholidapus grebnitskii, from Japan. [1] [3] P. grebnitskii was later shown to be junior synonym of Centronotus dybowskii which had been described in 1880 by Franz Steindachner from the Gulf of Strielok near Vladivostok in Russia. [4] This taxon is placed in the subfamily Opisthocentrinae within the family Stichaeidae by some authorities, [5] while others treat the subfamily as a valid family, the Ophistocentridae. [1]

Etymology

Pholidapus refers to the genus's smilarity to the genus Pholis and combines that name with apus, which means "no foot", a reference to the lack of pelvic fins. The specific name most likely honours the Polish biologist Benedykt Dybowski, who worked on the zoology of the Russian Far East. [6]

Description

Pholidapus has a similar eel-like shaped body to that of Pholiswith a small, compressed head that lacks scales. [3] with no pelvic fin. [7] There are between 60 and 65 spines in the dorsal fin [2] and the anterior spines are flexible but the posterior third of the spines are rigid. [7] There are 2 spines and 38 to 41 soft rays in the anal fin. [2] The pectoral fin is large and has 18 or 19 fin rays. There are 1 or 2 black spots on the dorsal fin. The last too at the back of the upper jaw is shaped like a canine. The body is greenish to yellowish brown in colour, it may have irregular horizontal and vertical streaking, this tends to become obscured towards the tail and belly. The pectoral fin, the lower side of the head and the abdomen are greenish to orange yellow. The caudal fin is greyish on its basal third, the rest being greyish orange with a white edge. The dorsal fin is brownish grey with a number of greenish black or blue spots. The anal fin is olive with a white margin.There is a dark brown base to the pectoral fin. [7] The maximum pubvlished tottal length for P. dybowski us 46 cm (18 in). [2]

Distribution and habitat

Pholidapus is found in the western North Pacific Ovcean where it occurs on the southern Kuril Islands and northwestern Sea of Okhotsk south to Hokkaido and northern Sea of Japan. This taxon lives in bends of algae close to the shore as deep as 146 m (479 ft). [5]

Related Research Articles

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<span class="mw-page-title-main">Stichaeidae</span> Family of fishes

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<span class="mw-page-title-main">Korean sandlance</span> Species of fish

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<i>Cryptacanthodes</i> Genus of fishes

Cryptacanthodes is a genus of marine ray-finned fishes belonging to the monogeneric family Cryptacanthodidae, commonly referred to as wrymouths. Three of the four species are found in the Pacific Ocean with one species native to the western Atlantic Ocean where they are benthic fishes, tunneling through soft substrates. It is currently the only known genus in its family.

<i>Ernogrammus</i> Genus of fishes

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The stippled gunnel is a species of marine ray-finned fish belonging to the family Pholidae, the gunnels. It is the only species in the monospecific genus Rhodymenichthys. It is found in the northern North Pacific Ocean.

<span class="mw-page-title-main">Stichaeinae</span> Subfamily of fishes

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The fourline snakeblenny is a species of marine ray-finned fish belonging to the family Stichaeidae, the pricklebacks and shannies. It is the only species in the monotypic genus Eumesogrammus. This fish is found in the Western North Atlantic, Arctic and North Pacific Oceans.

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<span class="mw-page-title-main">Arctic shanny</span> Species of fish

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<span class="mw-page-title-main">Opisthocentrinae</span> Subfamily of fishes

Opisthocentrinae is a subfamily of marine ray-finned fishes, classified within the family Stichaeidae, the pricklebacks or shannies. These fishes are found in the North Pacific Ocean.

Askoldia is a monotypic genus of marine ray-finned fishes belonging to the family Stichaeidae, the pricklebacks and shannies. Its only species is Askoldia variegata which is found in the northwestern Pacific Ocean.

<i>Kasatkia</i> Genus of fishes

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Lumpenopsis is a genus of marine ray-finned fishes belonging to the family Stichaeidae, the pricklebacks or shannies. These fishes are found in the North Pacific Ocean.

<i>Opisthocentrus</i> Genus of fishes

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<span class="mw-page-title-main">Six-spot prickleback</span> Species of fish

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References

  1. 1 2 3 4 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Opisthocentridae". Catalog of Fishes . California Academy of Sciences . Retrieved 11 August 2022.
  2. 1 2 3 4 Froese, Rainer; Pauly, Daniel (eds.) (2022). "Pholidapus variegata" in FishBase . February 2022 version.
  3. 1 2 Tarleton Hoffman Bean; Barton Appler Bean (1987). "Notes on fishes collected in Kamchatka and Japan by Leonhard Stejneger and Nicolai A. Grebnitski, with a description of a new blenny". Proceedings of the United States National Museum. 19 (10): 390–391.
  4. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Pholidapus". Catalog of Fishes . California Academy of Sciences . Retrieved 24 September 2022.
  5. 1 2 Mecklenburg, C. W. and B. A. Sheiko (2004). "Family Stichaeidae Gill 1864 — pricklebacks" (PDF). California Academy of Sciences Annotated Checklists of Fishes. 35.
  6. ↑ 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 24 September 2022.
  7. 1 2 3 Masaru Shiogaki (1980). "A Review of the Genera Pholidapus and Opisthocentrus". Japanese Journal of Ichthyology. 31 (3): 213–224.
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