Forktongue goby (Chaenogobius annularis) is a ray-finned fish of the family Gobiidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 16 cm. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 9 - 12; Anal spines: 1; Anal soft rays: 8 - 10; Vertebrae: 32 - 33. This species is characterized by the following: scales in longitudinal series 61-67, transverse series 20-22, predorsal scales 17-24; a pair of sensory papillae in row f; modal ray count of second dorsal fin I,10; modal AP 2; modal vertebrae count 14+18; dorsal fins light brown with distinct dark-brown with wavy longitudinal bands; caudal and pectoral fins light brown with distinct dark-brown transverse bands; body and head light brown with approximately 6 broad, dark transverse bands; caudal fin base with several small, black spots and distinct blotch .: elongated.
Behavioural data for Forktongue goby is currently being reviewed.
Freshwater; demersal. Temperate; 54°N - 34°N, 114°E - 141°E
The following diseases are known to affect Forktongue goby.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 6 records indexed .
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