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Dissection of a crayfish: internal view of a female (1)
Legend:
1 posterior gastric muscle
2 stomach
3 mandibular muscle
4 posterior gastric muscle
5 gills
6 digestive gland
7 three lobed ovary
8 hindgut
9 dorsal abdominal artery
10 abdominal extensor muscle
English name: Crayfish
Scientific name: Astacus sp.
Familia: Astacidae
Classis: Malacostraca
Phylum: Arthropoda (subphyllum Crustacea)
Regnum: Animalia
