How to Identify Pugnose ponyfish

To identify Pugnose ponyfish (Deveximentum insidiator), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Silvery, often with a darker dorsal surface and sometimes faint vertical bars or spots on the flanks. The fins are typically translucent or dusky.

Scale type

cycloid

Mouth position

superior

Distinctive features

Highly compressed, deep body, Protrusible, upward-pointing mouth (pugnose appearance), Small, cycloid scales, Lateral line complete and gently curved, Ability to secrete a thick mucus layer

Dorsal fin

Single dorsal fin with 8 spines and 16-17 soft rays. The spines are strong and can be locked erect.

Tail fin

Forked caudal fin.

Pectoral fin

Pectoral fins are relatively small and translucent.

Distinctive fins

Pelvic fins are small and located thoracically.

Identification Tips

1. 1

   Mouth

   The most distinguishing feature is the highly protrusible, upward-pointing mouth, which forms a tube when extended. This 'pugnose' appearance is key.

2. 2

   Body Shape

   Its deeply compressed, almost disc-like body, combined with its silvery coloration, helps differentiate it from other small coastal fish.

3. 3

   Mucus Secretion

   When handled, it often secretes a thick, slimy mucus layer, a characteristic of ponyfishes.

4. 4

   Dorsal Fin Spines

   The strong, erectile dorsal fin spines can be used for defense and are a common feature among Leiognathidae.

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