Bunaka gyrinoides (Bleeker, 1853)
Greenback gauvina
Boto-bot,  Bunak
Bunaka gyrinoides
photo by Pöllabauer, C.

Family:  Eleotridae (Bully sleepers)
Max. size:  34 cm SL (male/unsexed)
Environment:  demersal; freshwater; brackish; marine; depth range 0 - 5 m, amphidromous
Distribution:  Asia and Oceania: Sri Lanka, Indonesia, Philippines, New Guinea, Admiralty Islands, Micronesia (Pohnpei, Caroline Islands) and Australia. Reported from New Caledonia (Ref. 13246).
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 8-8; Anal spines: 1-1; Anal soft rays: 8-8
Biology:  Found in freshwater, estuaries, inshore and mangrove (Ref. 86252). Adults occur on soft mud bottoms of rainforest creeks to elevations of at least 150 m. (Ref. 2847, 44894). They favor undercut banks for retreat. Probably has a pelagic marine larval stage (Ref. 44894).
IUCN Red List Status: Least Concern (LC); Date assessed: 25 August 2018 Ref. (130435)
Threat to humans:  harmless
Country info:  Type localities of the following: Boroda francoi: Dagupan River, Pangasinan Province, Luzon Island, Philippines; Bunaka sticta: Tagaloan River at Tagaloan, Oriental Misamis Province, Mindanao, Philippines (Ref. 83763). Bunaka pinguis: Dumaguete River, Negros Oriental, 13.6 cm male. Also collected from Pulangui R., near Reina Regente, Cotabato; Abra R., near Bengued, Abra; Lapid Lapid R., Tawi Tawi in 1924; Kabatohan R., near Iba, Zambales; Kabulig R., Nueva Vizcaya near Casiguran; San Jose, Antique; Pasig R. (1925-6) (Ref. 439).


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