Shimofuri Goby

The Shimofuri goby (Tridentiger bifasciatus), outside of its native range in East Asia (Japan, South Korea, Taiwan, China), primarily occurs in California. Most commonly, this species is found in shallow water areas with debris that provide cover and mating territory. This goby species is relatively stout with a wide head and usually reaches up to 30 to 65 mm long with 105 mm being the maximum recorded total length. Shimofuri gobies have a range of colors but most range from light to dark brown with dark-brown spots on their sides. This species feeds on hydroids and amphipods found in the substrate, in addition to barnacle tentacles. When breeding, males will protect a cavity for females to lay their eggs in before fertilizing and protecting the eggs. Most Shimofuri gobies will live only 12 to 18 months, with a few individuals living to two years.

Fun Fact: Both male and female Shimofuri gobies mate multiple times during the breeding season.