Hyphessobrycon eques
Hyphessobrycon eques
(serpae tetra)
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Hyphessobrycon eques (Steindachner, 1882)

Common name: serpae tetra

Synonyms and Other Names: H. callistus (Boulenger, 1900), H. serpae Durbin in Eigenmann, 1908; jewel tetra, red minor tetra, blood tetra.

Taxonomy: available through www.itis.govITIS logo

Identification: According to Géry (1977), the genus Hyphessobrycon contains approximately 65 species and needs systematic revision. Hyphessobrycon eques is a species complex and includes the junior synonym H. serpae (Weitzman and Palmer 1997). See Géry for an identification key and a color photograph. A color photograph was also published in Axelrod et al. (1985).

Size: 4 cm.

Native Range: Tropical America. Central Amazon basin and Guianas (Géry 1977).

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Interactive maps: Point Distribution Maps

Nonindigenous Occurrences: The only record of this species (previously reported as H. serpae) is that of two specimens taken in Florida from a canal at the upper end of Mill Bayou, Bay County, in September 1989 (FL DNR, personal communication).

Means of Introduction: Likely aqarium release.

Status: Failed in Florida.

Impact of Introduction: Unknown.

Remarks: This is a well-known aquarium species. There are no known voucher specimens.

References: (click for full references)

Axelrod, H.R., W.E. Burgess, N. Pronek, and J.G. Walls. 1985. Dr. Axelrod's atlas of freshwater aquarium fishes. Tropical Fish Hobbyist Publications, Inc., Neptune City, NJ.

FL DNR - Florida Department of Natural Resources.

Géry, J. 1977. Characoids of the world. Tropical Fish Hobbyist Publications, Inc., Neptune City, NJ.

Weitzman, S.H. and L. Palmer. 1997. A new species of Hyphessobrycon (Teleostei: Characidae) from Neblina region of Venezuela and Brazil, with comments on the putative 'rosy tetra clade'. Ichthyological Exploration of Freshwater 7(3):209-242.

Other Resources:
FishBase Fact Sheet

Author: Nico, L.

Revision Date: 6/22/2012

Citation Information:
Nico, L., 2017, Hyphessobrycon eques (Steindachner, 1882): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=422, Revision Date: 6/22/2012, Access Date: 11/21/2017

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.

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Citation information: U.S. Geological Survey. [2017]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/21/2017].

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