''Leptophilypnion'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of tiny fishes in the family Eleotridae

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the

Amazon Basin The Amazon basin is the part of South America drained by the Amazon River and its tributary, 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 ...

in South America. At less than in

standard length Fish measurement is the measuring of individual fish and various parts of fish anatomy, their anatomies, for data used in many areas of ichthyology, including Taxonomy (biology), taxonomy and fishery biology. Overall length Standard length (SL) is ...

they are the smallest sleeper gobies and among the smallest fish. The larger '' Microphilypnus'' 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'' T. R. Roberts, 2013 * '' Leptophilypnion pusillus'' T. R. Roberts, 2013

References

Eleotridae {{Eleotridae-stub