Question:
A copulatory organ present in elasmobranchs
A copulatory organ present in elasmobranchs
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Fish Copulatory Organs:
Elasmobranchs (Sharks/Rays) = MYXOPTERYGIUM Claspers (Modified Pelvic Fin).
Live-bearing Teleosts (Guppy) = GONOPODIUM (Modified Anal Fin).
Elasmobranchs (Sharks/Rays) = MYXOPTERYGIUM Claspers (Modified Pelvic Fin).
Live-bearing Teleosts (Guppy) = GONOPODIUM (Modified Anal Fin).
Updated On: Sep 7, 2026
- Rectal gland
- Pterygiophore
- Myxopterygium
- Gonopodium
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Chondrichthyan reproductive anatomy: male sharks, skates, and rays possess paired intromittent claspers (myxopterygia) derived from modified medial borders of pelvic fins for internal fertilization.
Step 2: Detailed Explanation:
In comparative fish reproductive anatomy:
1. Myxopterygium (Claspers Pterygopodia) (C): The specialized paired copulatory intromittent organ present in male Elasmobranchs (sharks, skates, and rays). Formed by elongation and calcification of the medial margins of the pelvic fin basipterygia and radial pterygiophores, equipped with a siphon sac for sperm transfer during internal fertilization.
2. Gonopodium: Modified anal fin copulatory organ of male live-bearing poeciliid teleosts (e.g., guppies, swordtails).
3. Rectal Gland: Osmoregulatory salt-secreting gland in elasmobranchs.
Step 3: Final Answer:
Therefore, the copulatory organ in elasmobranchs is Myxopterygium, matching option (C).
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