alleryWhich pair contains only cartilaginous fishes?
ACatla and Labeo
BPetromyzon and Myxine
CHippocampus and Exocoetus
DScoliodon and Pristis
Answer & Solution
Correct answer: D. Scoliodon and Pristis
Scoliodon (dogfish) and Pristis (sawfish) are Chondrichthyes. Catla, Labeo, Hippocampus and Exocoetus are bony fishes; Petromyzon and Myxine are cyclostomes.
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