Jawless fishes powerpoint

2,126 views

Published on

Published in: Technology, Health & Medicine
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
2,126
On SlideShare
0
From Embeds
0
Number of Embeds
9
Actions
Shares
0
Downloads
45
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Jawless fishes powerpoint

  1. 1. The Jawless Fishes Class Agnatha
  2. 2. • long, eel-like bodies• lack paired fins• cartilage endoskeleton• gill slits with no operculum (covering)
  3. 3. • no jaws• circular mouths – cannot close• sharp teeth• rasping tongue – tears hole in prey and sucks out blood and body fluids
  4. 4. • less than 50 species• most primitive fish• skin sold as “eelskin” leather
  5. 5. ExamplesHagfish:• burrow in mud• eat worms or scavenge on dead & dying fish• have tentacles around their mouth• protection = slime
  6. 6. ExamplesLampreys:• usually parasitic• great sense of smell to find prey• covered with a poisonous slime• major problem inGreat Lakes

×