How to Identify Mandarinfish

To identify Mandarinfish (Synchiropus splendidus), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Extremely vibrant and complex patterns of electric blue, orange, green, and yellow. The body is typically blue-green with wavy orange stripes and spots. The fins are similarly patterned.

Scale type

none

Mouth position

superior

Distinctive features

Small, flattened head with large, protruding eyes., Two dorsal fins, the first with four spines, the second with eight soft rays., Anal fin with seven soft rays., Pelvic fins are large and jugular, positioned forward of the pectoral fins, and used for 'walking' on the substrate., Absence of scales, instead possessing a thick, slimy mucus coating that contains toxic compounds.

Dorsal fin

Two dorsal fins; the first is spiny (4 spines), the second is soft-rayed (8 rays). In males, the first dorsal spine is often elongated.

Tail fin

Rounded caudal fin.

Pectoral fin

Large and fan-like, used for propulsion and maneuvering.

Distinctive fins

Large, modified pelvic fins used for perching and locomotion along the substrate.

Identification Tips

1. 1

   Coloration and Pattern

   The intricate, psychedelic patterns of blue, orange, and green are unmistakable. No other fish species shares this exact combination and complexity of colors.

2. 2

   Body Shape and Fins

   Its elongated, somewhat flattened body, large jugular pelvic fins, and two distinct dorsal fins (especially the elongated first dorsal spine in males) are key identifiers.

3. 3

   Behavior

   Its characteristic 'hopping' or 'walking' movement along the substrate using its pelvic fins is unique.

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