How to Identify Shortnose electric ray

To identify Shortnose electric ray (Torpedo fuscomaculata), look at these key features.

Physical Characteristics

Body shape

flat

Coloration

Dorsal surface typically mottled brown, grey, or reddish-brown, often with darker spots or blotches, providing excellent camouflage. Ventral surface is usually pale white or cream.

Scale type

none

Mouth position

inferior

Distinctive features

Prominent, kidney-shaped electric organs visible as bulges on either side of the head., Short, rounded snout., Smooth skin, lacking dermal denticles (scales)., Two dorsal fins located on the tail.

Dorsal fin

Two relatively small dorsal fins, positioned on the caudal peduncle (tail stalk). The first dorsal fin is typically larger than the second.

Tail fin

Well-developed caudal fin, often somewhat rounded or truncate.

Pectoral fin

Large, rounded pectoral fins forming the characteristic disc shape, fused to the head.

Distinctive fins

Pelvic fins are separate from the pectoral disc and are relatively small.

Identification Tips

1. 1

   Snout length

   The snout is notably short and rounded, distinguishing it from other electric ray species with longer snouts.

2. 2

   Dorsal coloration

   The mottled brown/grey coloration with darker spots or blotches is a key identifier, aiding in camouflage.

3. 3

   Electric organs

   The prominent bulges on either side of the head, housing the electric organs, are characteristic of all Torpedo species.

4. 4

   Absence of denticles

   Its smooth skin, lacking any dermal denticles (placoid scales), is a distinguishing feature from many other rays and sharks.

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