Question:
Which of the following families have adipose fin?
A. Salmonidae
B. Clariidae
C. Synodontidae
D. Bagridae
Choose the correct answer from the options given below:
Which of the following families have adipose fin?
A. Salmonidae
B. Clariidae
C. Synodontidae
D. Bagridae
Choose the correct answer from the options given below:
A. Salmonidae
B. Clariidae
C. Synodontidae
D. Bagridae
Choose the correct answer from the options given below:
Show Hint
Remember that the adipose fin is a key taxonomic marker. It is prominently found in Characiformes, Siluriformes (like Bagridae, Sisoridae), Salmoniformes, and Aulopiformes (like Synodontidae).
Updated On: Aug 20, 2026
- B and D only
- A, B and D only
- B and C
- A, C and D only
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
The adipose fin is a small, fleshy, rayless dorsal fin found behind the main dorsal fin in certain primitive teleost groups.
Step 2: Detailed Explanation:
Let us examine the morphological characteristics of each family:
- Salmonidae (Salmons and trouts): Characterized by the presence of a distinct adipose fin.
- Clariidae (Air-breathing catfishes): Do not possess an adipose fin; they typically have a very long, continuous dorsal fin without a fleshy secondary fin.
- Synodontidae (Lizardfishes): Marine teleosts possessing a distinct, small adipose fin.
- Bagridae (Bagrid catfishes): Well-known for having a prominent adipose fin situated behind the rayed dorsal fin.
Step 3: Final Answer:
Since Salmonidae, Synodontidae, and Bagridae possess an adipose fin while Clariidae does not, the correct combination is A, C, and D only, which corresponds to option (D).
The adipose fin is a small, fleshy, rayless dorsal fin found behind the main dorsal fin in certain primitive teleost groups.
Step 2: Detailed Explanation:
Let us examine the morphological characteristics of each family:
- Salmonidae (Salmons and trouts): Characterized by the presence of a distinct adipose fin.
- Clariidae (Air-breathing catfishes): Do not possess an adipose fin; they typically have a very long, continuous dorsal fin without a fleshy secondary fin.
- Synodontidae (Lizardfishes): Marine teleosts possessing a distinct, small adipose fin.
- Bagridae (Bagrid catfishes): Well-known for having a prominent adipose fin situated behind the rayed dorsal fin.
Step 3: Final Answer:
Since Salmonidae, Synodontidae, and Bagridae possess an adipose fin while Clariidae does not, the correct combination is A, C, and D only, which corresponds to option (D).
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