Found in the hill-stream of the Cai Phan Rang River, south central Vietnam. Since it is an amphidromous species, it is possible to find the species inhabiting the nearby river basins .
Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 8; Vertebrae: 26. This species is distinguished from its congeners by the following characters: (D2 I,8, A I,8; pectoral fin rays modally 19; scales in longitudinal scale series 26-27 (modally 27), perdorsal scales 9-10 (modally 9); total vertebrae 26. Colouration: male with densely-set of small blackish brown spots on cheek and interorbital region to snout; many small blackish brown dots in first dorsal fin of both sexes .Cross section: oval.
Behavioural data for Rhinogobius Phuocbinhensis is currently being reviewed.
Diet information for Rhinogobius Phuocbinhensis is currently being compiled.
Reproduction data for Rhinogobius Phuocbinhensis is currently being compiled.
Marine; freshwater; brackish; benthopelagic; amphidromous . Tropical
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