Lamniformes1

The Elasmobranchs

Order Lamniformes Order Orectolobiformes Order

Carcharhiniformes Order Squaliformes Order Rajiformes Order Pristiformes Order Torpediniformes Order Myliobatiformes

Spiny Dogfish

Skate

Lamniformes2

Order Lamniformes

Mackerel Sharks• Sandtiger shark• Basking, Megamouth• Mako, Great White• Thresher Sharks

Lamniformes3

Sand Tigers

Odoutaspis taurusSpotted RaggedtoothGrey Nurse Shark

Lamniformes4

Sand Tigers

Cannibal viviparous• 2 young• 9-12 month gestation

Neutral Buoyancy• Gulps air & fills

stomach

Complex behavior

Vulnerable

Lamniformes5

Basking Shark Elongate gill rakers

for straining food May reach 14 m (49

ft)

Cetorhinus maximus

Lamniformes7

Megamouth

Megachasma pelagios Discovered in 1976 Inhabits deepwater Large mouth filter

feeds• Mouth is lined with

photophores to attract prey

Lamniformes8

Mako

Possibly the fastest shark in the world

Lamniformes9

Great White Shark

Efficient predator• “warm-blooded”

Highly migratory• Annually b/t Mexico

& HawaiiDark blotch

Lamniformes10

Lamniformes11

Thresher Shark

Lamniformes12

Order Orectolobiformes

Nurse Shark Possess long

tactile and chemosensory barbels

Shallow water, benthic dweller

Suction, crushing feeder

Lamniformes13

Whale Shark

Largest fish• 19 m (60 ft)

Plankton feeder

300 pups!

Lamniformes14

Lamniformes15

Order Carcharhiniformes

Ground Sharks Requiem Sharks

• Bull, Whitetip, Reef, Tiger, and Blue

Hammerhead

Lamniformes16

Hammerhead Shark

Head Function• Increase

peripheral vision• Increase surface

area for ampullae• Cephalofoil = lift

Scalloped Hammerhead