How to Identify Ocellated Waspfish

To identify Ocellated Waspfish (Richardsonichthys ocellatus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Highly variable, typically mottled brown, red, green, or grey, allowing for excellent camouflage against rubble, algae, or coral. Often features irregular blotches and bands. A prominent ocellus (eye-spot) is usually present on the posterior part of the dorsal fin, which can be more or less distinct depending on the individual and environment.

Scale type

none

Mouth position

superior

Distinctive features

Laterally compressed body, Large, upward-pointing mouth, Prominent, venomous dorsal fin spines, Often possesses dermal flaps or cirri on the head and body, enhancing camouflage, A distinct ocellus (eye-spot) on the posterior dorsal fin

Dorsal fin

Single, long dorsal fin with 12-13 venomous spines followed by 7-8 soft rays. The spines are robust and can be erected for defense.

Tail fin

Rounded caudal fin.

Pectoral fin

Large, fan-like pectoral fins with 12-14 rays, often used for propping itself on the substrate.

Distinctive fins

Pelvic fins are thoracic, located beneath the pectoral fins, with 1 spine and 3 soft rays. Anal fin has 3 spines and 5-6 soft rays.

Identification Tips

1. 1

   Ocellus on Dorsal Fin

   Look for a distinct, dark, often ringed 'eye-spot' (ocellus) on the posterior portion of the dorsal fin. While variable, this is a key identifying feature.

2. 2

   Body Shape and Coloration

   Observe the laterally compressed body and highly mottled, cryptic coloration that allows it to blend with its surroundings. The body often appears 'leaf-like' or 'rubble-like'.

3. 3

   Dermal Appendages

   Check for small, fleshy flaps or cirri on the head and body, which further aid in camouflage.

4. 4

   Fin Structure

   Note the robust, venomous dorsal spines and the large, fan-like pectoral fins used for resting on the substrate.

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