Como identificar Cação-anjo

Para identificar Cação-anjo (Squatina guggenheim), observe estas características principais.

Características físicas

Formato do corpo

flat

Coloração

Dorsal surface is typically mottled brown, grey, or yellowish with darker spots and blotches, providing excellent camouflage against sandy or muddy substrates. Ventral surface is white.

Tipo de escama

placoid

Posição da boca

terminal

Características distintivas

Flattened body with broad, wing-like pectoral fins that are not fused to the head (distinguishing it from true rays)., Two dorsal fins located far back on the body, near the caudal fin., Absence of an anal fin., Large, spiracles located behind the eyes., Nostrils with barbels., Rough skin due to dermal denticles, with a row of enlarged denticles along the midline of the back and tail in some individuals.

Nadadeira dorsal

Two small, similarly sized dorsal fins located posteriorly on the caudal peduncle.

Nadadeira caudal

Asymmetrical, with the upper lobe slightly larger than the lower lobe.

Nadadeira peitoral

Large, flattened, and expanded laterally, giving the shark a ray-like appearance. Not fused to the head.

Nadadeiras características

Pelvic fins are also broad and flattened, positioned just behind the pectoral fins.

Dicas de identificação

1. 1

   Body Shape

   Look for the distinctly flattened, ray-like body with broad pectoral fins that are separate from the head.

2. 2

   Dorsal Fins

   Note the two small dorsal fins positioned far back on the body, just anterior to the caudal fin.

3. 3

   Coloration

   Observe the mottled brown/grey/yellowish dorsal coloration with darker spots and blotches, which aids in camouflage.

4. 4

   Nostril Barbels

   Presence of small, fleshy barbels near the nostrils.

Explore Cação-anjo