Coelophrys

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Coelophrys
Annual report of the Board of Regents of the Smithsonian Institution (1908) (14770492895).jpg
Coelophrys brevicaudata illustration, top and side view
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Lophiiformes
Family: Ogcocephalidae
Genus: Coelophrys
A. B. Brauer, 1902
Type species
Coelophrys brevicaudata
A. B. Brauer, 1902

Coelophrys is a genus of marine ray-finned fishes belonging to the family Ogcocephalidae, the deep-sea batfishes or sea bats. The fishes in this genus are found in the western Pacific Ocean and the Indian Ocean.

Contents

Taxonomy

Coelophrys was first proposed as a monospecific genus in 1902 by the German zoologist August Brauer when he described Coelophrys brevicaudata. [1] The type locality of C. brevicaudata was given as in the eastern Indian Ocean around 50 km (31 mi) west of Leupung, Aceh Besar Regency at 5°23'02"N, 94°48'01"E, from a depth of 1,024 m (3,360 ft) at Valdivia station 207. [2] This genus is classified within the "Indo-Pacific clade" of the family Ogcocephalidae. [3] The family Ogcocephalidae is classified in the monotypic suborder Ogcocephaloidei within the order Lophiiformes, the anglerfishes in the 5th edition of Fishes of the World . [4]

Etymology

Coelophrys combines coelo, meaning "hollow", and phrys, meaning "brow", a refrence to the depression on the forehead of C. brevicaudata where the lure or illicium is rested when not in use. [5]

Species

There are currently seven recognized species in this genus: [6]

Many authorities treat C. oblonga as a member of the genus Halieutopsis . [7] [8]

Characteristics

Coelophrys batfishes are characterised by having a rather box-like head which is not vertically flattened, a very short caudal peduncle and a large mouth. The cavity on the forehead which thee illicium folds into us very large and spacious. The esca has 2 lobes to teg side and a middle part which is slender and leaf-shaped. there is no skin over the eye. The pelvic fin does not have an elbow. There are no teeth on the roof of the mouth and very few, or none, on the tongue. The scales are simple tubercles and the lateral line is divided. There is no spine on the preoperculum. [9] These are small fishes, the largest species in the genus is C. micropa which has a maximum published total length of 8.4 cm (3.3 in). [6]

Distribution and habitat

Coelophrys batfishes are found in the Western Pacific Ocean in deep water between 423 [10] and at least 1400m. [11] These batfishes, as adults, have a morphology which is similar to the pelagic larvae of other anglerfish species and this, along with the reduced pectoral and pelvic fins, implies that these are pelagic rather than demersal fishes. [9]

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References

  1. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Ogcocephalidae". Catalog of Fishes . California Academy of Sciences . Retrieved 10 May 2024.
  2. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Coelophrys". Catalog of Fishes . California Academy of Sciences . Retrieved 10 May 2024.
  3. ↑ Valerie Derouen; William B. Ludt; Hsuan-Ching Ho; Prosanta Chakrabarty (2015). "Examining evolutionary relationships and shifts in depth preferences in batfishes (Lophiiformes: Ogcocephalidae)". Molecular Phylogenetics and Evolution. 84: 27–33. Bibcode:2015MolPE..84...27D. doi:10.1016/j.ympev.2014.12.011. PMID   25554525.
  4. ↑ Nelson, J.S.; Grande, T.C.; Wilson, M.V.H. (2016). Fishes of the World (5th ed.). Hoboken, NJ: John Wiley & Sons. pp. 508–518. doi:10.1002/9781119174844. ISBN   978-1-118-34233-6. LCCN   2015037522. OCLC   951899884. OL   25909650M.
  5. ↑ Christopher Scharpf (14 November 2022). "Order LOPHIIFORMES (part 1): Families LOPHIIDAE, ANTENNARIIDAE, TETRABRACHIIDAE, LOPHICHTHYIDAE, BRACHIONICHTHYIDAE, CHAUNACIDAE and OGCOCEPHALIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 10 May 2024.
  6. 1 2 Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Coelophrys in FishBase . December 2013 version.
  7. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Halieutopsis". Catalog of Fishes . California Academy of Sciences . Retrieved 25 May 2024.
  8. ↑ Ho, Hsuan-Ching (2021). "Taxonomy and Distribution of the Deep-Sea Batfish Genus Halieutopsis (Teleostei: Ogcocephalidae), with Descriptions of Five New Species". Journal of Marine Science and Engineering. 10 (1): 34. doi: 10.3390/jmse10010034 .
  9. 1 2 Margaret G. Bradbury (1967). "The Genera of Batfishes (Family Ogcocephalidae)". Copeia. 1967 (2): 399–422. doi:10.2307/1442130. JSTOR   1442130.
  10. ↑ Froese, Rainer; Pauly, Daniel (eds.) (2024). "Coelophrys arca" in FishBase . February 2024 version.
  11. ↑ Froese, Rainer; Pauly, Daniel (eds.) (2024). micropus&speciesname={{{2}}}"Coelophrys micropus {{{2}}}" in FishBase . February 2024 version.
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