Forktongue goby (Chaenogobius annularis)

Scientific name: Chaenogobius annularis Gill, 1859

Forktongue goby (Chaenogobius annularis)

The Forktongue goby (Chaenogobius annularis) is a freshwater fish of the family Gobiidae. Native range: Asia, Japan and Korea. Reported occurrence elsewhere may be referring to other species of Gymnogobius.

Biology

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.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Chaenogobius annularis
Family
Gobiidae (Gobies)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
16.0
Environment
Freshwater; demersal
Climate
Temperate
Distribution
Asia: Japan and Korea. Reported occurrence elsewhere may be referring to other species of Gymnogobius.
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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