1 / 9

Class Chondrichthyes

Class Chondrichthyes. “Cartilaginous Fish” Skeleton made of cartilage Movable jaws with well-developed teeth Rough sand paper like scales made of the same composition of the teeth. Sharks & Ratfish. Sharks Adapted for fast swimming and to be predators Ratfish or Chimeras Bottom dwellers

hector
Télécharger la présentation

Class Chondrichthyes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Class Chondrichthyes • “Cartilaginous Fish” • Skeleton made of cartilage • Movable jaws with well-developed teeth • Rough sand paper like scales made of the same composition of the teeth

  2. Sharks & Ratfish • Sharks • Adapted for fast swimming and to be predators • Ratfish or Chimeras • Bottom dwellers • Have long “rat-like” tails

  3. Rays and Skates • Rays • Flattened bodies with gills on the bottom of their bodies • Whip-like tail with stinging spines (venomous) • Skates • Very similar to rays but with out the long tail or stinging spines

  4. Class Osteichthyes • “Bony Fish” • Make of 98% of all fish and over half the vertebrates • Skeleton at least made partially of bone • Thin, flexible, overlapping scales • Mouth located at end of body • Presence of gas-filled sac called a swim bladder

  5. Body Shape • Body shape is varied and linked to its lifestyle • Fast swimmer need elongated bodies

  6. Body Shape • Short, compressed bodies good for navigating tight places like reefs • Bottom dwellers tend to have flattened shapes

  7. Body Shape • Elongated shapes are need for life in narrow spaces • Some have less generalized shapes

  8. Body Shape • Some shapes are conducive to camouflage with their environment

  9. Exterior Layer

More Related