White-eye
In Costa Rica
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Anablepidae
Subfamily: Oxyzygonectinae
Parenti, 1981
Genus: Oxyzygonectes
Fowler, 1916
Species:
O. dovii
Binomial name
Oxyzygonectes dovii
(Günther, 1866)
Synonyms[2]

Haplochilus dovii Günther, 1866

The white-eye (Oxyzygonectes dovii) is a species of killifish of the family Anablepidae. This species is the only member of its genus, Oxyzygonectes, and the subfamily Oxyzygonectinae.[3]

This fish species is found in Pacific drainages in Nicaragua, Costa Rica, and Panama.[3]

O. dovii has no gonopodium like the other members of its family. The dorsal and anal fins are posteriorly placed just before the caudal peduncle and well behind the midbody. The reach a maximum length of about 15 centimetres (6 in) TL.[3]

Many of these fish inhabit brackish waters. They are found in rivers of low elevation, up to 15 metres (50 ft) above sea level. These fish feed on detritus, algae, and sometimes on terrestrial insects.[2]

Though it occurs in estuaries, it breeds in freshwater.[3] This species is not a seasonal killifish. O. dovii has been bred in captivity.[2]

Etymology

The fish is named in honor of John Melmoth Dow (1827-1892), of the Panama Railroad Company, who in addition to being a ship captain, he was an amateur naturalist who presented the type specimen to the British Museum. The “w” is latinized as a “v”.[4]

References

  1. ↑ Lyons, T.J. (2020). "Oxyzygonectes dovii". IUCN Red List of Threatened Species. 2020: e.T149249824A149252632. doi:10.2305/IUCN.UK.2020-2.RLTS.T149249824A149252632.en. Retrieved 27 January 2022.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2007). "Oxyzygonectes dovii" in FishBase. June 2007 version.
  3. 1 2 3 4 Nelson, Joseph S. (2006). Fishes of the World. John Wiley & Sons, Inc. ISBN 0-471-25031-7.
  4. ↑ Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Order CYPRINIFORMES: Family NEMACHEILIDAE (a-p)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Archived from the original on 21 November 2021. Retrieved 26 December 2021.
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