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Fresh water polyp with testes

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With labels
Legend:

1  tentacle
2  hypostome / mouth area
3  gonads (testes)
4  pedal disc

 
English name: freshwater polyp
Scientific name: Hydra vulgaris
Familia: Hydridae
Classis: Hydrozoa
Phylum: Cnidaria
Regnum: Animalia

http://www.vcbio.science.ru.nl/en/image-gallery/show/AN0036/print/

last modified: 5 Jun 2014