We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published bySofia Hickey
Modified over 4 years ago
Skates & Rays Skates and rays are both cartilaginous fishes that are related to the sharks.
Skates & Rays All members have enlarged pectoral fins that are used for swimming much like birds in flight.
Skates & Rays Also, all members are bottom- dwellers and have their mouths on their underside or ventral surface.
Skates & Rays Skates, like the local clearnose skate, are fairly small compared to the stingrays. Rays are rarely over 2.5 feet long.
Skates & Rays Stingrays, on the other hand, can weigh in the hundreds of pounds.
Skates & Rays Stingrays have sharp spines on their elongate tails, while skates do not.
Skates & Rays These spines are not only poisonous, but they are covered with backward pointing barbs, much like a fish hook.
Skates & Rays The greatest danger, however, is from infection if stepped on not from the poison.
Skates & Rays Skates tend to have a tail with a small dorsal fin near the end of its tail, while the stingrays tail is long and thin.
Skates & Rays Both stingrays and skates are bottom feeders where they eat crustaceans, mollusks, and other benthic organisms.
Skates & Rays Skates lay eggs like this egg case below. These can often be found along our ocean and bay beaches.
Skates & Rays Stingrays usually give birth to their offspring and do not lay eggs
Skates & Rays Certain types of stingrays can often be seen near the surface with their two pectoral fins out of the water.
KINGDOM ANIMALIA Phylum Chordata Class Chondrichthyes
Cartilaginous Fishes Cartilaginous fishes (Chondrichthyes) have a skeleton made not of bone, but of cartilage, which is lighter and more flexible than.
Bonnethead Shark By Nash and Lorenz The Bonnethead’s teeth, in the front of it’s mouth, are small, sharp teeth. there are bigger teeth, in the back.
Class Chondrichthyes aka Cartilaginous fishes sharks and rays sharks and rays.
Parts of the Fish and the Function
25.2 Cartilaginous Fish Describe the unique characteristics of fishes. Identify the 2 main classes of fishes. Describe at least 3 adaptations of sharks.
Chondrichthyes Hailey & Collin. A. Kingdom - Animalia, Phylum - Chordata, Subphylum - Vertebrata, Infraphylum - Gnathostomata, Class - Chondrichthyes.
Fish Anatomy & Taxonomy. Orientation Dorsal Fin Large fin on back that varies in size, shape and position Stabilizes fish.
SHARKS Fierce Fish POWER POINT BY: JB.
Smooth Dogfish By Brenden.
Sharks Shy Ocean Creatures?.
Great White Shark Maximus Lincoln.
Great white shark By: Cody Reece
Fish 6. Types of Sharks.
Class Chondrichthyes “Cartilaginous Fish” Kingdom: Animalia
Fish Form and Function Why does it look like that?
BY OLIVIA AND EDEN THE BULL SHARK The Bull Shark’s belly is off white. It weighs about 200 pounds. Its about 7 feet long. Bull Shark teeth are triangular,
Presented by: Miss Schaefer’s First Grade Class
By Lucas Tierney There are five different groups of animals with vertebrates. They are: * Mammals * Fish * Reptiles * Birds * Amphibians.
© 2018 SlidePlayer.com Inc. All rights reserved.