Phylum Chordata Subphylum Vertebrata. Fishes Chapter 8.

Phylum Chordata

Subphylum Vertebrata

Subphylum Vertebrata

Fishes

Chapter 8

Larvae of a jawless fish

*Cranium

*Vertebrae

Skeletal elements of a jawless fish

Subphylum Vertebrata

Subphylum Vertebrata

Jawless Fishes

Jawless Fishes – ancient diversity

Jawless fish: Hagfish

Jawless fish: Lamprey

Hagfish

Lamprey

Jawless Fishes – modern diversity

lampreys

Jawless Fishes – modern diversity

Jawed Vertebrates

*Jaws

*Paired fins

Fossil placoderm

Class Chondrichthyes

Cartilaginous fishes

Class Chondrichthyes

Paired fins

Placoid scales

Class Chondrichthyes

Shark Diversity

Shark Diversity

megamouth shark

Megachasma pelagios

Pygmy shark

Squaliolus laticaudus

Rhincodon typus

Whale shark

Mitsukurina owstoni

Goblin shark

Shark Diversity

Ampullae of Lorenzini

Shark Conservation

Manta birostris

Skates and rays

Electric Ray

Narcine brasiliensis

Hydrolagus colliei

Ratfishes or chimaeras

Class Osteichthyes

bony fishes

Class Osteichthyes

Bony skeleton

Complex and adaptable

Class Osteichthyes

Mouth

Class Osteichthyes

scales

Class Osteichthyes

Fins and tail

Class OsteichthyesGill cover

Class Osteichthyes

Buoyancy

Fish diversity

Fishery Exploitation

Mobility

Tuna

Body form and niche

Flounder

Body form and niche

seahorse

Body form and niche

Porcupine fish

Body form and niche

jawfish

Coloration

Jaw protrusionFeeding

Jaws

Filter feeding

anchovies & sardines

Filter feeding

Gill rakers

Vision

Taste

Olfaction

Lateral Line

Lateral Line

Lateral Line

nerves

Lateral Line

Fish behavior and life history

Territoriality

Fish Schooling

Fish Migrations

Fish Migrations

Anadromous

Fish Migrations

Anadromous

Fish Migrations

Anadromous

Fish MigrationsCatadromous

Coelacanths

Lobe-finned fishes

Lobe Fins

Fossil lobe-finned fishes

Christmas 1938

Port Elizabeth, South Africa

Original letter from Majorie Courtney-Latimer to J.L.B. Smith

Original letter from Majorie Courtney-Latimer to J.L.B. Smith

23 Dec. 1938

J.L.B. Smith

Majorie Courtney-Latimer

Marjorie Courtney Latimer's odd fish

The first coelacanth

The Search for more….

The Second Coelacanth

1952, Comoro Islands

Back in South Africa

The Second Coelacanth

1952, Comoro Islands

Dr. James Millot

ALL living coelacanth research moves to Paris

J.L.B. Smith Institute of Ichthyology

Grahamstown, South Africa

Lobe-finned fish

Living Coelacanth

Latimeria chalumnae

1998 -- a second species from Indonesia

Sulawesi, Indonesia, 1998

Latimeria menadoensis