Marine Biology Unit 2 Exam

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Phylum Chordata, Subphylum Urochordata

sea squirts

Phylum Ctenophora

comb jellies

Phylum Mollusca, Class Gastropoda

"stomach-foot" molluscs: snails, limpets, nudibranchs

Phylum Mollusca, Class Cephalopoda

"head foot" molluscs

Phylum Mollusca, Class Bivalvia

jointed shells

Class Cephalopoda, Subclass Nautiloidea

chambered Nautilus

Class Cephalopoda, Subclass Coleoidea

squids, octopods, cuttlefish

Phylum Arthropoda

arthropods

Phylum Arthropoda, Subphylum Chelicerata

primitive arthropods

Phylum Arthropoda, Class Merostomata

horseshoe crabs

Phylum Arthropoda, Subphylum Crustacea

marine mandibulates

Phylum Arthropoda, Class Malacostraca

largest class of crustaceans

Class Malacostraca, Order Decapoda

5 pairs of legs: crabs, lobsters, shrimp

Class Malacostraca, Order Stomatopoda

mantis shrimp

Class Malacostraca, Order Euphausiacea

krill

Class Malacostraca, Order Amphipoda

amphipods

Phylum Arthropoda, Class Copepoda

copepods

Phylum Arthropoda, Class Cirripedia

barnacles

Phylum Echinodermata

"spiny-skinned" animals

Phylum Echinodermata, Class Asteroidea

sea stars

Phylum Echinodermata, Class Ophiuroidea

brittle stars

Phylum Echinodermata, Class Echinoidea

sea urchins, sand dollars

Phylum Echinodermata, Class Holothuroidea

sea cucumbers

Phylum Chordata

Chordates

Phylum Chordata, Subphylum Cephalochordata

lancelets

Subphylum/Infraphylum Vertebrata, Class Chondrichthyes

cartilaginous fishes

Subphylum/Infraphylum Vertebrata, Class Osteichthyes

bony fishes

Class Osteichthyes, Subclass Sarcopterygii

lobed-finned bony fishes

Class Osteichthyes, Subclass Actinopterygii

ray-finned bony fishes

Subphylum/Infraphylum Vertebrata, Class Reptilia

reptiles

Class Reptilia, Order Testudines

sea turtles

Class Reptilia, Order Squamata

marine iguanas

Subphylum/Infraphylum Vertebrata, Class Mammalia

mammals

Class Mammalia, Order Carnivora

carnivores

Order Carnivora, Suborder Pinnipedia

seals, sea lions, walruses

Class Mammalia, Order Sirenia

manatees, dugongs

Class Mammalia, Order Cetacea

whales, dolphins, porpoises

Order Cetacea, Suborder Mysticeti

baleen whales

Order Cetacea, Suborder Odotoceti

toothed whales

Phylum Porifera

sponges

Phylum Cnidaria

cnidocyte ("stinging cell") bearing

Phylum Cnidaria, Class Hydrozoa

colonial Cnidarians: Portuguese man-of-war

Phylum Cnidaria, Class Anthozoa

"flower animals": sea anemones, corals, gorgonians

Phylum Cnidaria, Class Scyphozoa

true jellies

Phylum Cnidaria, Class Cubozoa

box jellies

Phylum Mollusca

molluscs