How to Identify Striped Dwarf Earthworm Eel

To identify Striped Dwarf Earthworm Eel (Pangio filinaris), look at these key features.

Physical Characteristics

Body shape

eel-like

Coloration

The body is typically light brown to yellowish-orange, adorned with 10-15 dark brown to black vertical bands or saddles that extend from the dorsal surface down to the ventral side, often not meeting completely on the belly. The intensity and width of these bands can vary. The ventral side is usually lighter.

Scale type

none

Mouth position

inferior

Distinctive features

Elongated, vermiform body, Small, inferior mouth with three pairs of barbels, Small, almost rudimentary fins, Distinctive striped pattern of dark bands on a lighter body, Absence of scales (or scales are deeply embedded and not visible)

Dorsal fin

Small, located far back on the body, typically posterior to the midpoint.

Tail fin

Small, rounded or slightly truncate, often with a dark spot at the base.

Pectoral fin

Small and paddle-like, positioned low on the body.

Distinctive fins

All fins are relatively small and inconspicuous, adapted for burrowing rather than strong swimming.

Identification Tips

1. 1

   Body Shape and Size

   Look for a very slender, eel-like body, typically reaching a maximum length of 5-7 cm (2-2.8 inches).

2. 2

   Coloration and Pattern

   Observe the light brown to yellowish body with 10-15 distinct dark vertical bands or saddles. The bands are usually well-defined and extend down the sides.

3. 3

   Mouth and Barbels

   Note the small, inferior mouth surrounded by three pairs of short barbels, which are used for foraging in the substrate.

4. 4

   Fin Placement

   The dorsal fin is positioned far back on the body, closer to the caudal fin than to the head.

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