Which one of the following is not a true amphibian animal?

$A$ common cloacal aperture is found in

Which of the following organisms can respire in both terrestrial and aquatic habitats?

$S$ - Statement: $Capelle$ classified frogs and $Ichthyophis$ into $Amphibia$.
$R$ - Reason: Frogs and $Ichthyophis$ possess a three-chambered heart.

In $Amphibia$,the heart has

Identify the amphibian from the following options.