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Philippine guitarfish

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Species of fish

Philippine guitarfish
Conservation status

Critically Endangered  (IUCN 3.1)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Rhinopristiformes
Family: Rhinobatidae
Genus: Rhinobatos
Species: R. whitei
Binomial name
Rhinobatos whitei
(Corrigan & Naylor, 2014)

The Philippine guitarfish, known formally as Rhinobatos whitei, is a critically endangered species of cartilaginous fish in the genus Rhinobatos. The species has been documented in the Pacific Ocean near the Philippines. The documented sizes of Philippine guitarfish specimens ranges between 556-720 mm for male adults and female adults exceeding 720 mm. The observed characteristics of the guitarfish is the difference of morphological features, coloration, pelvic and caudal features. The observation of the species is rather rare due to the lack of sightings, capturing of the species, or mixing the taxonomic features with other species of guitarfish.

Morphological Features

Disc shape: The observed shape of given specimens were broadly wedge-shaped with a blunt anterior and mildly bottlenose shape, differing from other species of its form.

Tail Structure: The tail is observed to be elongated and slender, observed to be thicker and proximally to the body and becomes more slender distally.

Coloration

Blotches and spots: Rusty brown blotches with faint white spots.

Pelvic and Caudal Features

Pelvic Rays and Radials: Observed pelvic rays is 24-26

Caudal Centra Count: Observed caudal centra 43-48, relatively higher than other observed specimens within the species.


References

  1. Dulvy, N.K.; Derrick, D.; Rigby, C.L.; Tanay, D.; Utzurrum, J.A.T. (2021). "Rhinobatos whitei". IUCN Red List of Threatened Species. 2021: e.T104007203A104007215. doi:10.2305/IUCN.UK.2021-2.RLTS.T104007203A104007215.en. Retrieved 29 August 2024.
  2. "Philippine Guitarfish (Rhinobatos whitei)". iNaturalist. Retrieved 2024-08-29.
  3. Bailly, Nicolas (2017). "Rhinobatos whitei Last, Corrigan & Naylor, 2014". WoRMS. World Register of Marine Species. Retrieved 2024-08-29.
  4. "Rhinobatos". Global Biodiversity Information Facility. Retrieved 2024-08-29.
  5. Froese, Rainer; Pauly, Daniel (eds.). "Rhinobatos whitei". FishBase. August 2024 version.
  6. Last, Peter R.; Corrigan, Shannon; Naylor, Gavin (2014-10-07). "Rhinobatos whitei, a new shovelnose ray (Batoidea: Rhinobatidae) from the Philippine Archipelago". Zootaxa. 3872 (1). doi:10.11646/zootaxa.3872.1.3. ISSN 1175-5334.
  7. Last, Peter R.; Corrigan, Shannon; Naylor, Gavin (2014-10-07). "Rhinobatos whitei, a new shovelnose ray (Batoidea: Rhinobatidae) from the Philippine Archipelago". Zootaxa. 3872 (1): 31. doi:10.11646/zootaxa.3872.1.3. ISSN 1175-5334.
  8. Moore, Abm (2017-07-21). "Are guitarfishes the next sawfishes? Extinction risk and an urgent call for conservation action". Endangered Species Research. 34: 75–88. doi:10.3354/esr00830. ISSN 1863-5407.
  9. Last, Peter R.; Corrigan, Shannon; Naylor, Gavin (2014-10-07). "Rhinobatos whitei, a new shovelnose ray (Batoidea: Rhinobatidae) from the Philippine Archipelago". Zootaxa. 3872 (1): 31. doi:10.11646/zootaxa.3872.1.3. ISSN 1175-5334.
  10. Last, Peter R.; Corrigan, Shannon; Naylor, Gavin (2014-10-07). "Rhinobatos whitei, a new shovelnose ray (Batoidea: Rhinobatidae) from the Philippine Archipelago". Zootaxa. 3872 (1). doi:10.11646/zootaxa.3872.1.3. ISSN 1175-5334.
  11. Last, Peter R.; Corrigan, Shannon; Naylor, Gavin (2014-10-07). "Rhinobatos whitei, a new shovelnose ray (Batoidea: Rhinobatidae) from the Philippine Archipelago". Zootaxa. 3872 (1). doi:10.11646/zootaxa.3872.1.3. ISSN 1175-5334.
Taxon identifiers
Rhinobatos whitei
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