Quietula

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Quietula
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gobiiformes
Family: Oxudercidae
Subfamily: Gobionellinae
Genus: Quietula
D. S. Jordan & Evermann, 1895
Type species
Gillichthys y-cauda
O. P. Jenkins & Evermann, 1889

Quietula is a genus of fish in the goby subfamily, Gobionellinae. There are two species, both native to the Gulf of California in Mexico. One is endemic to the Gulf, and the other also occurs along the western coast of Baja California and the coast of California. The fish were first described from Guaymas in Sonora, Mexico. [1] The genus name Quietula is from the Latin quietus, meaning "quiet". [2]

These gobies have elongated bodies and compressed heads with large eyes and large mouths, with the corner of the mouth located posterior to the eye. Most of the front end of the body is without scales. The caudal fin is rounded. Q. guaymasiae and Q. y-cauda can be distinguished by the shape of the dark spot on the caudal fin; the former has a transverse marking at the base of the fin, while the latter has a sideways y-shaped spot that extends forward onto the caudal peduncle. The two species are also distinguished by the number of rays in the pectoral fin, the number of scales, and the arrangement of neuromasts in the lateral line. [1]

Species:

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References

  1. 1 2 3 4 Ahnelt, H. and J. Göschl. (2003). Morphological differences between the eastern Pacific gobiid fishes Quietula guaymasiae and Quietula y-cauda (Teleostei: Gobiidae) with emphasis on the topography of the lateral line system. Archived October 14, 2013, at the Wayback Machine Cybium 27(3), 185-97.
  2. Froese, R. and D. Pauly. (Eds.) Quietula guaymasiae. FishBase. 2011.
  3. Findley, L. 2010. Quietula guaymasiae. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. Downloaded on 11 October 2013.
  4. Froese, R. and D. Pauly. (Eds.) Quietula y-cauda. FishBase. 2011.