Trachymedusae
Halicreas minimum, from NOAA Office of Ocean Exploration and Research.
Belongs within: Medusozoa.
The Trachymedusae are a group of hydrozoans lacking a polyp stage to the life cycle. Medusae develop directly from an actinula (Petersen 1979).
Trachymedusae DB07
| i. s.: Carmaris glitschi H04
| Carmarina hastata H04
| Aglantha B26
| |--A. digitale C02
| `--A. rosea B26
| Pantachogon haeckeli... Читать дальше...