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Dissection of a crayfish: opened stomach
Legend:
1 stomach
2 sclerite
3 lateral tooth
4 median tooth
5 intestine
6 filters
7 hindgut
English name: Crayfish
Scientific name: Astacus sp.
Familia: Astacidae
Classis: Malacostraca
Phylum: Arthropoda (subphyllum Crustacea)
Regnum: Animalia
