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Agnatha. JH & LK. Phyla. Phylum is Chordata and subphylum is Vertebrata. Symmetry. Agnatha has bilateral symmetry. Characteristic. Cartilaginous skeleton scaleless skin anticoagulating saliva Jawless breathe with 7 external gills No paired fins. Examples. Lampreys Hagfish. Lampreys.
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Agnatha JH & LK
Phyla Phylum is Chordata and subphylum is Vertebrata
Symmetry Agnatha has bilateral symmetry.
Characteristic • Cartilaginous skeleton • scaleless skin • anticoagulating saliva • Jawless • breathe with 7 external gills • No paired fins
Examples Lampreys Hagfish
Lampreys • Lampreys live in coastal and fresh waters. It looks like eels. It has 7 external gills on the back of eyes. It has suckers instead of chins.
Hagfish • Hagfish looks very thin and long. Usually, hagfish’s length is about 60cm. It doesn’t have chins. Instead of it, Hagfish’s tongues are well-developed.