molluscs and arthropods · Subphylum Crustacea c,-ayfrsh Class Xiphosura Class Arach nida spiders,...
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Transcript of molluscs and arthropods · Subphylum Crustacea c,-ayfrsh Class Xiphosura Class Arach nida spiders,...
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Arthropoda
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• Subphylum Trilobitomorpha– Trilobita – trilobites(extinct)
• SubphylumChelicerata– Arachnida – spiders,scorpions,etc.– Xiphosura – horseshoecrabs– Pycnogonida – seaspiders– Eurypterida – seascorpions(extinct)
• SubphylumUniramia– Chilopoda – centipedes– Diplopoda – millipedes
• SubphylumHexapoda– Insecta – insects
• SubphylumCrustacea– Branchiopoda – brineshrimpetc.– Cephalocarida – horseshoeshrimp– Maxillopoda – barnacles,fishlice,etc.– Malacostraca – lobsters,crabs,shrimp,etc.
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Head
Thorax
Abdomen
