Gobionellus microdon
Palmtail Goby
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Gobiidae (Gobies)
Gobionellus
Gobionellus microdon (Palmtail Goby)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: elongated. This species differs from its congeners by the following characters: mouth terminal and slightly oblique; upper pectoral fin base dusky, not dark; a large dark patch above the pectoral fin base on trunk just beneath nape, most distinct in males and large females; second dorsal fin with 13 elements, anal fin with 14 elements; the first and second dorsal fins are not broadly connected; small ctenoid scales on the body posteriorly, with cycloid scales limited to anteriormost portion of trunk, 50-73 in a lateral series; nape with many small scales; first gill arch with 8 thin rakers on ceratobranchial and 7 on epibranchial; third transverse suborbital row of free neuromasts on cheek extending dorsally above horizontal midcheek row ‘b’, usually to orbit; horizontal midcheek row ‘b’ not extending forward beyond third transverse suborbital row (Ref. 55435).
Distribution
Eastern Central Pacific: from Sonora, Mexico to Guayaquil, Ecuador; including freshwaters (above tidal influence) of Rio Grande at Miraflores in Panama.
Habitat Associations
Freshwater, brackish. demersal.
Biology
Inhabits estuaries and brackish mangrove creeks. Also recorded from rivers (Ref. 45915).
Max length: 18.4 cm SL.
IUCN Red List Status: Least Concern (LC), assessed 2018-11-08. Resilience: Medium (Preliminary K or Fecundity.).
References
Pezold, F. (2004) Redescriptions and synonymies of species of the American-west African genus Gobionellus (Teleostei: Gobiidae) with a key to species. Copeia 2004(2):281-297.
Velázquez-Velázquez, E., J. Navarro Alberto, S.E. Domínguez Cisneros and M.E. Vega Cendejas (2009) Length-weight relationships for 24 fish species in a coastal lagoon of the Mexican South Pacific. J. Appl. Ichthyol. 25(2):228-229. DOI: 10.1111/j.1439-0426.2008.01199.x
Comments On Gobionellus microdon