Describe the common morphological features of hagfishes and lampreys. How do they differ from each other?

Hagfishes and lampreys are primitive jawless vertebrates classified under the superclass Agnatha. Despite their shared classification, they exhibit distinct morphological features alongside some common characteristics.

Common Morphological Features:

1. Jawless Structure: Both hagfishes and lampreys lack true jaws and instead possess a circular, suctorial mouth.
2. Cartilaginous Skeleton: Their skeleton is primarily composed of cartilage rather than bone, reflecting their evolutionary primitiveness.
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