Which of the following has a broad and flat covered body, anteriorly with dorsal shield with a pair of compound eyes, hooks and barbs?

Correct option is A

Correct Answer: (a) Argulus sp.
Explanation:
→ Argulus (fish louse) has a broad, flattened body with a dorsal shield, compound eyes, and hooked appendages for attachment.
→ It is an ectoparasitic crustacean commonly found on skin and gills of freshwater fishes.
Information Booster:
→ Causes argulosis, leading to irritation, lesions, and secondary infections.
→ Highly mobile parasite capable of swimming between hosts.
→ Severe infestations affect growth and immunity.
Additional Information:
(b) Lernea – anchor worm; slender, worm-like.
(c) Caligus – marine sea lice.