Belobranchus belobranchus

{{Short description|Species of fish}}

{{Speciesbox

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite journal | author = Larson, H. | year= 2021 | title = Belobranchus belobranchus | journal = The IUCN Red List of Threatened Species | volume = 2021 | page = e.T196312A160969457 | doi= 10.2305/IUCN.UK.2021-1.RLTS.T196312A160969457.en | doi-access = free }}

| image = Belobranchus belobranchus (Valenciennes 1837) by P. Bravo.jpg

| taxon = Belobranchus belobranchus

| authority = (Valenciennes, 1837)

| synonyms =*Eleotris belobrancha Valenciennes, 1837

• Belobranchus taeniopterus Bleeker, 1856
• Belobranchus quoyi Bleeker, 1856

}}

Belobranchus belobranchus, the throat-spine gudgeon, is a species of fish in the family Eleotridae native to Indonesia, the Philippines, New Guinea, Timor-Leste, Solomon Islands, New Caledonia and Fiji where it can be found in fresh and brackish water in coastal streams and estuaries. This species grows to a length of {{convert|19.5|cm|in|abbr=on}}. This species was the only known member of its genus,{{FishBase species |genus= Belobranchus|species= belobranchus| month = April | year = 2013}} until Belobranchus segura was described in 2012.{{Cof record|spid=72690|title=Belobranchus segura|access-date=23 July 2018}}