How to Identify Skunk Corydoras

To identify Skunk Corydoras (Corydoras arcuatus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

The body is typically a light tan to silvery-white, sometimes with a yellowish tint. The most prominent feature is a distinct, dark, arched stripe that originates at the snout, passes through the eye, and extends along the upper flank to the caudal peduncle, often ending in a spot at the base of the caudal fin. The belly is white. Fins are generally hyaline (clear) or slightly yellowish.

Scale type

none

Mouth position

inferior

Distinctive features

Prominent arched dark stripe along the lateral line., Two pairs of barbels around the mouth., Armored body with overlapping bony plates (scutes).

Dorsal fin

Single dorsal fin, typically with one spine and 7-8 soft rays. The spine can be locked upright.

Tail fin

Forked caudal fin.

Pectoral fin

Pectoral fins possess a strong, serrated spine, which can be locked in an extended position.

Distinctive fins

Adipose fin present, typical of Callichthyidae.

Identification Tips

1. 1

   Arched Stripe

   The most definitive feature is the dark, arched stripe that runs from the snout, through the eye, and along the upper flank to the caudal fin base. This stripe is typically well-defined and continuous.

2. 2

   Body Coloration

   Light tan to silvery-white body color, which contrasts sharply with the dark stripe.

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

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