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Trimma finistrinum is a dazzling new Fijian dwarf goby

By Leonard Ho - Posted May 25, 2017 09:00 AM
Trimma finistrinum, AKA the Porthole Pygmygoby, is the newest described member of Trimma, a genus that contains some of the smallest yet most colorful reef fishes.
Trimma finistrinum is a dazzling new Fijian dwarf goby

Trimma finistrinum swimming upside down. Photo by B: R. Myers.

Richard Winterbottom describes Trimma finistrinum alongside another new Fiji Trimma goby, Trimma bathum (no good live photo exists of T. bathum) in ZooTaxa.  It may seem surprising that such a colorful fish is only now being described, but keep in mind that Trimma gobies are very tiny (most are less than 3 cm / 1 inch long), cryptic, and found among very colorful, busy coral reefs.  We know nearly every big reef fish in shallow reefs by now (a new Tang was discovered in 2016, shocking researchers), but there are still a lot of tiny species we have yet to catalog.  AAlmost all of the newly discovered reef fish are either deep water species or tiny gobies such as T. finistrinum.

Author: Leonard Ho
Location: Southern California

I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.


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