Microphilypnus is a genus of small fishes in the family Eleotridae native to the Amazon and Orinoco basins in South America. At up to 2.4 cm (0.94 in) in standard length,[2] they are among the smallest sleeper gobies, but however larger than the Leptophilypnion sleeper gobies from the same region.[3] The bottom-dwelling Microphilypnus are typically found in shallow water among leaf-litter or partially buried in sand,[4] and they can be very abundant in their habitat.[5] Their small size combined with a speckled and semi-transparent appearance makes them highly cryptic.[4] They somewhat resemble certain freshwater shrimp (Palaemonetes and Pseudopalaemon), as well as Priocharax characins, and they sometimes group together.[4] Microphilypnus feed on tiny invertebrates.[5]
| Microphilypnus | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Eleotridae |
| Genus: | Microphilypnus G. S. Myers, 1927 |
| Type species | |
| Microphilypnus ternetzi G. S. Myers, 1927[1]
| |
Species
editThe recognized species in this genus are:[2][6]
- Microphilypnus acangaquara Caires & J. L. de Figueiredo, 2011
- Microphilypnus amazonicus G. S. Myers, 1927
- Microphilypnus macrostoma G. S. Myers, 1927
- Microphilypnus tapajosensis Caires, 2013[6]
- Microphilypnus ternetzi G. S. Myers, 1927
References
edit- ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Microphilypnus". Catalog of Fishes. California Academy of Sciences. Retrieved 27 July 2018.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Microphilypnus". FishBase. October 2013 version.
- ^ 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.
- ^ a b c Carvalho, L.N.; J. Zuanon; and I. Sazima (2006). The almost invisible league: crypsis and association between minute fishes and shrimps as a possible defence against visually hunting predators. Neotrop. Ichthyol. 4(2). doi:10.1590/S1679-62252006000200008
- ^ a b Amazonian Fish: Gobiformes. Retrieved 23 September 2017.
- ^ a b 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.
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