How to Identify Brown-banded bambooshark

To identify Brown-banded bambooshark (Chiloscyllium punctatum), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Juveniles exhibit distinct dark brown to black bands on a light tan to yellowish-brown background. These bands typically number 10-13 on the body and 5-7 on the tail. As they mature, the bands often fade, break up into spots, or become less defined, though some individuals retain prominent banding. The ventral surface is typically pale.

Scale type

placoid

Mouth position

subterminal

Distinctive features

Short snout with prominent nasal barbels extending to the mouth, Small mouth positioned subterminally, Spiracles present below the eyes, Two spineless dorsal fins, the first originating over or slightly behind the pelvic fin bases, Anal fin present, located close to the caudal fin, Long, slender caudal fin without a distinct lower lobe

Dorsal fin

Two dorsal fins of similar size, spineless. The first dorsal fin originates over or slightly behind the pelvic fin bases. The second dorsal fin is positioned just anterior to the anal fin.

Tail fin

Long, slender, and tapering caudal fin (tail fin) without a distinct lower lobe. The upper lobe has a subterminal notch.

Pectoral fin

Broad and rounded pectoral fins.

Distinctive fins

Pelvic fins are relatively large and rounded. Anal fin is present and distinct, located close to the caudal fin.

Identification Tips

1. 1

   Body Pattern

   Look for distinct dark brown bands on a lighter body, especially in juveniles. Adults may have faded bands or spots.

2. 2

   Nasal Barbels

   Prominent, elongated barbels extending from the nostrils to the mouth are a key characteristic of bamboosharks.

3. 3

   Dorsal Fin Origin

   The first dorsal fin originates over or slightly behind the pelvic fin bases, which helps distinguish it from some other shark species.

4. 4

   Caudal Fin

   The long, slender, and tapering caudal fin without a distinct lower lobe is characteristic.

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