Large Sandgoby
Large Sandgoby
Fusigobius maximus - Kusini, TZ-ZS, TZ
Fusigobius maximus - Philippines
Fusigobius maximus - Moalboal, PH-CB, PH
Fusigobius maximus - Dauin, Negros oriental, Philippines
Fusigobius maximus - Kwajalein Atoll, RMI
Fusigobius maximus - Exmouth, LHB, WA, Australia
© Glen Whisson
Fishes · Bony fishes · Gobies

Large Sandgoby

Fusigobius maximus (Randall, 2001)
syn. Coryphopterus maximus
up to 7.5 cm3-21 mLeast Concern
835

The name means the largest, and it earns it at seven and a half centimeters. That is the scale of the group: this is the giant of its genus, and it would fit across your palm with room to spare.

What makes it worth stopping for is that it does none of the things the other sand gobies do. No burrow, no shrimp, no hole to bolt into. It simply sits on open sand, semi-transparent, dusted with orange-yellow speckles, and relies on not being worth the trouble. Chase it and it moves a meter and settles again, in plain sight, and after two or three repeats you start to feel like the unreasonable one.

The two black marks are the identification: one on the front membrane of the first dorsal fin, one at the middle of the tail base. The rest of the animal is close to transparent, and on pale sand it disappears at a distance of about a meter.

How to recognise it
  • semi-translucent body dusted with orange-yellow spots
  • black mark on the first membrane of the front dorsal fin
  • black spot at the middle of the tail base
  • sits on open sand with no burrow, and only shifts a short distance when pushed
  • up to 7.5 cm

Why it's threatened

This species is rarely if ever used for aquaculture or in the aquarium trade. There are no known major threats.

Threat classification from the IUCN Red List.

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Last Update: August 17, 2026