The Randall's assessor (Assessor randalli) is a saltwater fish of the family Plesiopidae that grows up to 4 cm.
Asia: Australia, China, Taiwan/Ch Taipei, Japan, Ryukyu Is., Papua New Guinea and others
Description
Randall's assessor is a small longfin (Plesiopidae) from shallow reef water of the western Pacific. The species grows to about 6 cm and has a stocky, yellow-brown to orange body with fine blue lines and rounded fins. Remarkably it often swims upside down, belly to the ceiling, under overhanging reef and in caves. As a mouthbrooder the male protects the eggs in his mouth; it snaps at small zooplankton. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Randall's assessor?
The Randall's assessor has a torpedo-shaped body and is mainly yellow-gold.
Where does the Randall's assessor live?
The Randall's assessor lives in the sea (marine waters) and is mostly found around stony or rocky ground. Asia: Australia, China, Taiwan/Ch Taipei, Japan, Ryukyu Is., Papua New Guinea and others
How big does the Randall's assessor get?
The Randall's assessor grows to a maximum of about 4 cm.
Is the Randall's assessor dangerous to humans?
No, the Randall's assessor is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Assessor
More from the family Plesiopidae

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Point your camera at the fish and Fin names the species in seconds. Free, and the Randall's assessor is one of 12,519 species in the app.