How to Identify Lyretail Corydoras

To identify Lyretail Corydoras (Corydoras metae), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

The body is generally a silvery-tan to light brown, with a prominent black diagonal band extending from the anterior base of the dorsal fin downwards towards the posterior base of the anal fin. A second distinct black stripe runs horizontally through the eye. The dorsal fin often has a black blotch or stripe. The ventral surface is typically lighter, often white or cream. Fin coloration matches the body or is translucent.

Scale type

none

Mouth position

inferior

Distinctive features

Two prominent black bands: one diagonal across the body, one through the eye., Forked caudal fin., Three pairs of barbels around the mouth., Armored body plates (scutes).

Dorsal fin

Single dorsal fin, typically with a black blotch or stripe on its anterior rays. The first ray is often a spine.

Tail fin

Forked caudal fin, sometimes with slightly elongated upper and lower lobes, giving a subtle 'lyre' appearance in some individuals.

Pectoral fin

Paired pectoral fins, often with a spine that can be locked into position for defense.

Distinctive fins

Adipose fin present, small and typically with a dark spot.

Identification Tips

1. 1

   Body Markings

   Look for the characteristic diagonal black band running from the dorsal fin towards the belly, and the black stripe through the eye. These are the most reliable distinguishing features.

2. 2

   Caudal Fin Shape

   While named 'Lyretail', the caudal fin is typically forked. Observe if the upper and lower rays are slightly elongated, which can give a subtle lyre-like appearance in some specimens.

3. 3

   Size

   Adults typically reach a maximum standard length of 4.5-5.0 cm (1.8-2.0 inches).

4. 4

   Barbels

   Presence of three pairs of sensory barbels around the mouth, used for foraging in the substrate.

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