Squaliformes and Rajiformes 1 Order Squaliformes zCookie-cutter Shark zSpiny Dogfish zSleeper Sharks zCharacteristics:

Presentation on theme: "Squaliformes and Rajiformes 1 Order Squaliformes zCookie-cutter Shark zSpiny Dogfish zSleeper Sharks zCharacteristics:"— Presentation transcript:

1 Squaliformes and Rajiformes 1 Order Squaliformes zCookie-cutter Shark zSpiny Dogfish zSleeper Sharks zCharacteristics:

2 Squaliformes and Rajiformes 2 Cookie-cutter Shark

3 Squaliformes and Rajiformes 3

4 4 Spiny Dogfish zSpiracles are present, but non-functional zLongest gestation of any marine vertebrate zForm huge schools and migrate great distances zCommonly sold as scallops

5 Squaliformes and Rajiformes 5 Sleeper Sharks

6 Squaliformes and Rajiformes 6 Order Rajiformes zIncludes: ySkates yGuitarfishes

7 Squaliformes and Rajiformes 7 Skates zLocal Species: Clearnose Skate (Raja englanteria) Ocellated Skate (Raja ackelyi)

8 Squaliformes and Rajiformes 8 Guitarfish

9 Squaliformes and Rajiformes 9 Order Pristiformes zSawfish

10 Squaliformes and Rajiformes 10 Order Torpediniformes zElectric Rays zElectric organ yMay constitute 1/6 body weight yModified muscle cells yUsed to stun prey zLocal spp: Atlantic Torpedo and Lesser Electric Ray

11 Squaliformes and Rajiformes 11 Order Myliobatiformes zStingrays zUse disc to dig out invertebrates yPrey on crustaceans and other inverts.

12 Squaliformes and Rajiformes 12 Stingray Stinger zShed every few months yVenom oozes down the spine bathing the wound

13 Squaliformes and Rajiformes 13

14 Squaliformes and Rajiformes 14 Eagle Ray

15 Squaliformes and Rajiformes 15 Manta Rays zCephalic lobes yFunctional limbs on the head used for directing plankton z22 ft. 4,000 lbs. Max.

16 Squaliformes and Rajiformes 16 Cownose Ray

17 Squaliformes and Rajiformes 17 Cownose Ray