''Leptophilypnion'' is a
genus of tiny fishes in the family
Eleotridae
Eleotridae is a family of fish commonly known as sleeper gobies, with about 34 genera and 180 species. Most species are found in the tropical Indo-Pacific region, but there are also species in subtropical and temperate regions, warmer parts of th ...
endemic to the
Amazon Basin
The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivi ...
in South America. At less than in
standard length
Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology.
Overall length
* Standard length (SL) is the length of a fish m ...
they are the smallest sleeper gobies and among the
smallest fish
The world's smallest fish depends on the measurement used.
Based on minimum standard length at maturity the main contenders are ''Paedocypris progenetica'' where females can reach it at ,[Microphilypnus
''Microphilypnus'' is a genus of small fishes in the family Eleotridae native to the Amazon and Orinoco basins in South America. At up to in standard length, they are among the smallest sleeper gobies, but however larger than the ''Leptophilypni ...]
'' sleeper gobies are also found in the Amazon,
[Caires, R.A. (2013). Microphilypnus tapajosensis, a new species of eleotridid from the Tapajós basin, Brazil (Gobioidei: Eleotrididae). Ichthyological Exploration of Freshwaters, 24 (2): 155-160.] and sometimes occur together with ''Leptophilypnion''.
[ The bottom-dwelling ''Leptophilypnion'' are typically found in shallow, stagnant or slow-flowing water among soft debris, leaf-litter or water plants.][
]
Species
The recognized species in this genus are:[Roberts, T.R. (2013): ''Leptophilypnion'', a new genus with two new species of tiny central Amazonian gobioid fishes (Teleostei, Eleotridae). ''aqua, International Journal of Ichthyology, 19 (2): 85-98.'']
* ''Leptophilypnion fittkaui
''Leptophilypnion'' is a genus of tiny fishes in the family Eleotridae endemism, endemic to the Amazon Basin in South America. At less than in standard length they are the smallest sleeper gobies and among the smallest fish. The larger ''Microph ...
'' T. R. Roberts, 2013
* ''Leptophilypnion pusillus
''Leptophilypnion'' is a genus of tiny fishes in the family Eleotridae endemic to the Amazon Basin in South America. At less than in standard length they are the smallest sleeper gobies and among the smallest fish. The larger '' Microphilypnus'' ...
'' T. R. Roberts, 2013
References
Eleotridae
{{Gobiiformes-stub