ADW: Hydrozoa: PICTURES

Hydrozoa

- Sea thread hydroid
  Obelia dichotoma
- Olindias
- Olindias
- Olindias phosphorica
- Olindias phosphorica
- Snailfur
  Hydractinia echinata
- longwrist hermit
  Pagurus longicarpus
- Paracoryne huvei
- Feathered hydroid
  Pennaria disticha
- Phialella zappai
- Phialella zappai
- Portuguese man-of-war
  Physalia physalis
- Portuguese man-of-war
  Physalia physalis
- Portuguese man-of-war
  Physalia physalis
- Penicillate jellyfish
  Polyorchis penicillatus
- Blue button
  Porpita porpita

To cite this page: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2025. The Animal Diversity Web (online). Accessed at https://animaldiversity.org.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

This material is based upon work supported by the National Science Foundation Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services.

The ADW Team gratefully acknowledges their support.

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