False shark ray
|False shark ray|
The false shark ray (Rhynchorhina mauritaniensis) is a species of fish in the Rhynchobatidae family and the only species in the genus Rhynchorhina. This rare ray is only known from shallow coastal Atlantic waters in Banc d’Arguin, Mauritania.
The upperparts of the false shark ray are greyish or greenish-brown and densely covered in white spots. 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. 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.
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.
- Séret, B.; and 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.CS1 maint: Uses authors parameter (link)
- Last; White; de Carvalho; Séret; Stehmann; and Naylor, eds. (2016). Rays of the World. CSIRO. p. 76. ISBN 9780643109148.CS1 maint: Uses editors parameter (link)
- Pollerspöck, J.; and N. Straube. "Rhynchorhina mauritaniensis Séret & Naylor, 2016". Shark References. Retrieved 6 July 2017.CS1 maint: Uses authors parameter (link)
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