Tuesday, February 1, 2011

Phylum Annelida

Class Polychaeta

Nereis sp.
"trunk"
"parapodium"
Class Clitellata

Subclass Oligochaeta
Earthworm
"nephridium"
"pharynx"
"esophagus"
"clitellum"

Subclass Hirudinea
Leech
"anterior"
"middle"
"posterior"
"botyroidal tissue"
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