Four-eye pygmy goby (Trimma hayashii)

Scientific name: Trimma hayashii Hagiwara & Winterbottom, 2007

Four-eye pygmy goby (Trimma hayashii)

The Four-eye pygmy goby (Trimma hayashii) is a marine fish of the family Gobiidae. Native range: Western Pacific, Japan to the Solomons.

Biology

Dorsal spines (total): 7; Dorsal soft rays (total): 8-9; Anal spines: 1; Anal soft rays: 7 - 8. This species is characterized by the following: dorsal spine a little elongated or not; presence of a basal membrane between the pelvic fins; absence of predorsal scales; an interorbital but no postorbital trench; absence of cheek and opercular scales; fifth pelvic fin ray branched sequentially once or twice and, uniquely among known species of Trimma, has a bilateral, pupil-sized black spot on the branchiostegal membrane; live individuals with red spots, a little smaller than the pupil diameter on the head and nape, the posterior half of body has 3 yellow stripes separated by 2 grey stripes, and the black spots on the branchiostegal membranes are ocellated with white or blue.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Trimma hayashii
Family
Gobiidae (Gobies)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
2.3
Depth range
0–26 m (0–85 ft)
Environment
Marine; reef-associated; depth range 0 - 26 m
Climate
Subtropical
Distribution
Western Pacific: Japan to the Solomons.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
High, minimum population doubling time less than 15 months (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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