How to Identify Scissortail Rasbora

To identify Scissortail Rasbora (Rasbora trilineata), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Silvery body with a prominent dark lateral stripe running from the operculum to the caudal peduncle. The most striking feature is the caudal fin, which is deeply forked, with the upper and lower lobes marked by distinct black and white (or sometimes yellowish) stripes, creating the 'scissortail' appearance. Fins are generally hyaline (transparent) with some yellowish tint possible.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Deeply forked caudal fin with black and white stripes on the lobes., Prominent dark lateral stripe.

Dorsal fin

Single, relatively small dorsal fin located mid-body.

Tail fin

Deeply forked (emarginate to lunate) with distinctive black and white markings on the lobes.

Pectoral fin

Paired, relatively small, located just behind the operculum.

Distinctive fins

The caudal fin is the most distinctive feature, giving the fish its common name. The anal fin is also present, located posterior to the dorsal fin.

Identification Tips

1. 1

   Caudal Fin Markings

   Look for the deeply forked tail with distinct black stripes on the outer edges of both lobes, separated by a clear or yellowish central area. This 'scissor' pattern is unique.

2. 2

   Lateral Stripe

   Observe the prominent dark, often blackish, lateral stripe running horizontally along the body from the gill cover to the base of the caudal fin.

3. 3

   Body Shape and Size

   An elongated, slender body, typically reaching a maximum standard length of 10-12 cm (4-4.7 inches).

Explore Scissortail Rasbora