False shark ray
CITES Appendix II (CITES)[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Order:
Rhinopristiformes
Family:
Rhinidae
Genus:
Rhynchorhina

Séret & Naylor, 2016
Species:
R. mauritaniensis
Binomial name
Rhynchorhina mauritaniensis
Séret & Naylor, 2016

The false shark ray (Rhynchorhina mauritaniensis) is a species of fish in the Rhinidae family and the only species in the genus Rhynchorhina.[2] This rare ray is only known from shallow coastal Atlantic waters in Banc d’Arguin, Mauritania.[2][3][4]

The upperparts of the false shark ray are greyish or greenish-brown and densely covered in white spots.[3] The largest known reliably measured specimen was 2.24 m (7.3 ft) long, but individuals about 2.75 m (9 ft) have been seen.[2] Overall it resembles the African wedgefish (Rhynchobatus luebberti) found in the same region, but it has a blunt rounded snout somewhat like the shark ray or bowmouth guitarfish (Rhina ancylostoma) of the Indo-Pacific. The genus name Rhynchorhina (Rhyncho+rhina) is a reference to this "mix" of features.[2]

Although long known by the local Imraguen people, the first record confirmed by scientists was in 1998 and it only received its species description in 2016.[2]

Very little is known about the behavior of the false shark ray, but a 2-metre (6.6 ft) female caught in February had ripe ovocytes and shrimp in the stomach, while another had moray eels in the stomach.[2]

References

  1. ↑ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  2. 1 2 3 4 5 6 Séret, B.; G. Naylor (2016). "Rhynchorhina mauritaniensis, a new genus and species of wedgefish from the eastern central Atlantic (Elasmobranchii: Batoidea: Rhinidae)". Zootaxa. 4138 (2): 291–308. doi:10.11646/zootaxa.4138.2.4. PMID 27470765.
  3. 1 2 Last; White; de Carvalho; Séret; Stehmann; Naylor, eds. (2016). Rays of the World. CSIRO. p. 76. ISBN 9780643109148.
  4. ↑ Pollerspöck, J.; N. Straube. "Rhynchorhina mauritaniensis Séret & Naylor, 2016". Shark References. Retrieved 6 July 2017.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.