Question:
Wallago attu belongs to which one of the following family
Wallago attu belongs to which one of the following family
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Family Siluridae (sheatfishes) is easily recognized by having a very long anal fin that is not confluent with the caudal fin, and lacking a distinct adipose fin.
Classic Indian representatives are Wallago attu and Ompok bimaculatus.
Classic Indian representatives are Wallago attu and Ompok bimaculatus.
Updated On: Aug 20, 2026
- Cyprinidae
- Bagridae
- Claridae
- Siluridae
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Fishes are taxonomically classified into specific families based on anatomical features like fin structure, barbell presence, and skeletal configurations.
Step 2: Detailed Explanation:
- Wallago attu (commonly known as the freshwater shark or helicopter catfish) is a large, predatory catfish native to South and Southeast Asia.
- It is characterized by a highly compressed body, a very long anal fin, a small dorsal fin, and a wide mouth cleft with long barbels.
- These anatomical features place it under the sheatfish family Siluridae.
Step 3: Final Answer:
Wallago attu belongs to the family Siluridae, which corresponds to option (D).
Fishes are taxonomically classified into specific families based on anatomical features like fin structure, barbell presence, and skeletal configurations.
Step 2: Detailed Explanation:
- Wallago attu (commonly known as the freshwater shark or helicopter catfish) is a large, predatory catfish native to South and Southeast Asia.
- It is characterized by a highly compressed body, a very long anal fin, a small dorsal fin, and a wide mouth cleft with long barbels.
- These anatomical features place it under the sheatfish family Siluridae.
Step 3: Final Answer:
Wallago attu belongs to the family Siluridae, which corresponds to option (D).
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