# Assessor randalli

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***Assessor randalli***, **Randall's assessor** or **Randall's devilfish**, is a species of [ray-finned fish](/source/Ray-finned_fish) belonging to the [family](/source/Family_(taxonomy)) [Plesiopidae](/source/Plesiopidae), the [longfins](/source/Longfin) or roundheads. It is found in the western [Pacific Ocean](/source/Pacific_Ocean), mainly in the seas around Japan and Taiwan.[1] It is a similar species to *[Assessor macneilli](/source/Assessor_macneilli)* but it is slightly brighter in colour and has more rounded rounder fins which have with yellow markings, there are also yellow markings on its body.[1] They are associated with crevices and gullies in reefs, where they hover at the entrances to caves and holes. They are [mouthbrooders](/source/Mouthbrooding), the male guards the eggs by keeping them in his mouth until they hatch.[2] They are rare in the Aquarium trade but have been bred in captivity.[3]

## Etymology

The [specific name](/source/Specific_name_(zoology)) honours the [ichthyologist](/source/Ichthyology) [John Ernest Randall](/source/John_Ernest_Randall) of the [Bishop Museum](/source/Bishop_Museum) in [Honolulu](/source/Honolulu), who collected the [type specimen](/source/Type_(biology)).[4]

## References

1. ["Assessor randalli is a seldom seen, virtually unknown member of the genus"](https://reefbuilders.com/2011/11/28/assessor-randalli/). Reefbuilders Inc. Retrieved 29 September 2018.

1. ["Randall’s (*Assessor randalli*)"](https://www.orafarm.com/product/randalls-assessor/). ORA. Retrieved 29 September 2018.

1. Christopher Scharpf & Kenneth J. Lazara (23 August 2023). ["Order CICHLIFORMES: Families AMBASSIDAE, GRAMMATIDAE, PLESIOPIDAE, OPISTOGNATHIDAE, POLYCENTRIDAE, EMBIOTOCIDAE and PHOLIDICHTHYIDAE"](https://etyfish.org/cichliformes8/). *The ETYFish Project Fish Name Etymology Database*. Christopher Scharpf and Kenneth J. Lazara. Retrieved 30 August 2023.

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