Randall's prawn goby
A small goby with orange stripes and a black-and-white eye-spot.
Randall's prawn goby (Amblyeleotris randalli) is a small, bottom-dwelling fish that lives on tropical reefs in the central Indo-Pacific and is sometimes kept in aquariums. It grows to a maximum length of 9 cm, with a long, cylindrical body. The fish is white with fine orange-to-yellow stripes; the first stripe wraps around the front of the head and passes through the eye. Scattered across the white areas are many tiny whitish dots. A black-and-white eyespot appears on the front dorsal fin when it is raised. The eyes are round and prominent, and the mouth is large and shaped like an upside-down "U."
This goby inhabits soft seafloors made of coarse sand and shell fragments, often in rubble caves at depths between 25 and 50 meters. It is known to live alongside a particular species of prawn, usually Alpheus ochrostriatus. Randall's prawn goby is carnivorous, feeding mainly on small crustaceans or fish that come near its burrow.
The species' scientific and common names honor ichthyologist John E. Randall (born 1924) of the Bishop Museum in Honolulu, who first brought this goby to the attention of the scientists who described it.
Quick Facts
- Maximum length
- 9 cm
- Depth range
- 25 to 50 m
- Habitat substrate
- Soft substrates of coarse and shell sand in rubble caves
- Associated prawn species
- Alpheus ochrostriatus
- Named after
- John E. Randall
Facts from the source article.
Lore & Background
Amblyeleotris randalli has a lengthened, cylindrical body reaching up to 9 cm. Its background coloration is white, banded with orange to yellow fine stripes; the first stripe goes around the front head passing through the eye. A multitude of small whitish dots are distributed on the white parts of the body. On the anterior dorsal fin when deployed, a black and white eye-spot is visible. The eyes are round and prominent, and the mouth is large and shaped like an inverted 'U'.
This species inhabits soft substrates of coarse and shell sand in rubble caves at depths of 25 to 50 m. It has been recorded in association with a species of prawn, generally Alpheus ochrostriatus. Its carnivorous diet consists of small crustaceans or fishes passing close to its burrow.
The specific name and common name honor the ichthyologist John E. Randall of the Bishop Museum in Honolulu, who drew the attention of the authors to this goby.
Reader's Guide
Randall's prawn goby is notable for its distinctive coloration and symbiotic relationship with the prawn Alpheus ochrostriatus. The species is a benthic dweller of tropical reefs in the central Indo-Pacific, occupying soft substrates in rubble caves at depths between 25 and 50 m. Its elongated, cylindrical body and prominent eyes suit its burrow-associated lifestyle. The black-and-white eye-spot on the anterior dorsal fin may serve as a defensive or communicative feature. The goby's carnivorous feeding strategy—taking small crustaceans or fishes near its burrow—reflects its role as a predator within its microhabitat. The species is also present in the aquarium trade, indicating its appeal to marine aquarists. The naming after John E. Randall acknowledges his contribution to the discovery and description of this goby. Overall, the species exemplifies the specialized adaptations and mutualistic associations found among reef-associated gobies.
Did You Know?
- It is associated with the prawn Alpheus ochrostriatus.
- The species is named after ichthyologist John E. Randall.
More in Wrasses and Gobies, Part 2 1-24
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