Search in gallery Fresh water polyp with testes - Large (125 Kb) - Scroll down   to information Without 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/labels/AN0036/AN0032/AN0031/print/