How to Identify Red-tailed pipefish

To identify Red-tailed pipefish (Doryichthys boaja), look at these key features.

Physical Characteristics

Body shape

eel-like

Coloration

Body coloration is typically mottled brown, green, or yellowish, often with darker bands or spots that aid in camouflage. The most distinguishing feature is the caudal fin, which is often reddish or orange, especially in mature individuals, giving it its common name. Some individuals may exhibit iridescent blue or green spots along the body.

Scale type

none

Mouth position

superior

Distinctive features

Elongated, slender body encased in bony rings, Small, tubular mouth, Distinctive reddish or orange caudal fin in adults, Absence of pelvic fins, Small, fan-like dorsal fin

Dorsal fin

Single, small, and fan-like, typically with 30-40 soft rays, positioned towards the posterior half of the body.

Tail fin

Small, rounded to slightly spatulate, often reddish or orange, especially in mature specimens.

Pectoral fin

Small and rounded, located just behind the operculum.

Distinctive fins

Pelvic fins are absent. Anal fin is very small or absent.

Identification Tips

1. 1

   Body Shape

   Look for a very slender, elongated body, almost like a twig, covered in bony rings rather than scales.

2. 2

   Caudal Fin Color

   The most reliable identifier is the reddish or orange caudal (tail) fin, particularly prominent in adult specimens.

3. 3

   Snout

   Observe the relatively short, tubular snout compared to some other pipefish species.

4. 4

   Habitat

   Its presence in freshwater environments distinguishes it from many marine or brackish pipefish species.

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