dcsimg

Diagnostic Description

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Differs from all congeners by having the following characters: second ctenactinium with five serrae in adult males; 27 caudal vertebrae with no sexual dimorphism in the number of precaudal vertebrae; 15-20 teeth on paradentary; one and two known males are sinistral and dextral respectively (Ref. 90869).
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Recorder
Susan M. Luna
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Life Cycle

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Pelvic fins in males are modified to form part of a complex thoracic clasping organ (Ref. 205).
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Armi G. Torres
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Biology

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Fertilization is internal and eggs are attached to the substrate via adhesive filaments (Ref. 43413).
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Tess Cruz
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Phallostethus dunckeri

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Phallostethus dunckeri is a species of fish in the family Phallostethidae. It is endemic to Malaysia.

Environment

Phallostethus dunckeri is recorded to be found in a freshwater environment within a pelagic depth range. This species is native to a tropical climate.[2][1]

Distribution

Phallostethus dunckeri is native to the areas of Asia and Malaysia.[2]

Biology

The eggs of Phallostethus dunckeri are fertilised internally and then after laying they are attached to the substrate by adhesive filaments.[3]

Taxonomy and naming

Phallostethus dunckeri is the type species of the genus Phallostethus.[4] It was described by Charles Tate Regan in 1913 with a type locality of the Muar River, Johor in Malaysia.[5] Regan honoured the German ichthyologist Georg Duncker (1870-1953) of the Zoologisches Museum Hamburg, Duncker initially wrote about this species in 1904 but he was too busy to write a description so he passed some of his specimens on to Regan for him to describe.[6]

References

  1. ^ a b Daniels, A. (2020). "Phallostethus dunckeri". IUCN Red List of Threatened Species. 2020: e.T16870A90985711. doi:10.2305/IUCN.UK.2020-3.RLTS.T16870A90985711.en. Retrieved 14 November 2021.
  2. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2019). "Phallostethus dunckeri" in FishBase. April 2019 version.
  3. ^ "Phallostethus dunckeri". Encyclopedia Of Life. Retrieved 27 September 2013.
  4. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Phallostethus". Catalog of Fishes. California Academy of Sciences. Retrieved 14 July 2019.
  5. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Phallostethus dunckeri". Catalog of Fishes. California Academy of Sciences. Retrieved 14 July 2019.
  6. ^ Christopher Scharpf & Kenneth J. Lazara (14 March 2019). "Order ATHERINIFORMES: Families BEDOTIIDAE, MELANOTAENIIDAE, PSEUDOMUGILIDAE, TELMATHERINIDAE, ISONIDAE, DENTATHERINIDAE and PHALLOSTETHIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 14 July 2019.
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Phallostethus dunckeri: Brief Summary

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Phallostethus dunckeri is a species of fish in the family Phallostethidae. It is endemic to Malaysia.

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