| Hydroider (Hydroidea indet.) | | 2014-10-16 | 2014-10-15 |  | Drøbak (Akershus, Norway) |
| Hydroider (Hydroidea indet.) | | 2013-06-11 | 2013-05-16 | | Håkonshella (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2003-05-22 | 2001-11-26 | | Akvastasjonen (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2003-05-22 | 2001-11-26 | | Akvastasjonen (Vestland, Norway) |
| Tanghydroide (Dynamena pumila) | | 2002-11-07 | 2002-11-07 | | Træ (Vestland, Norway) |
| Sikksakkhår (Laomedea flexuosa) | | 2002-11-07 | 2002-11-07 | | Træ (Vestland, Norway) |
| Tanghydroide (Dynamena pumila) | | 2002-10-08 | 2002-10-08 | | Torvangerfjæra (Vestland, Norway) |
| Laomedea sp. | | 2001-06-15 | 2001-05-28 | | Espegrend (Vestland, Norway) |
| Laomedea sp. | | 2001-06-11 | 2001-05-28 | | Espegrend (Vestland, Norway) |
| Laomedea sp. | | 2001-06-11 | 2001-06-11 | | Espegrend (Vestland, Norway) |
| Laomedea sp. | | 2001-06-11 | 2001-06-11 | | Espegrend (Vestland, Norway) |
| Laomedea sp. | | 2001-06-11 | 2001-06-11 | | Espegrend (Vestland, Norway) |
| Laomedea sp. | | 2001-06-11 | 2001-06-11 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-05-02 | 2001-01-31 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-05-02 | 2001-01-31 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-05-02 | 2000-09-04 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-05-02 | 2001-01-31 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-05-02 | 2001-01-31 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-05-02 | 2001-01-31 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-05-02 | 2000-01-31 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-04-20 | 2001-02-16 | | Akvastasjonen (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-04-20 | 2001-02-16 | | Akvastasjonen (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-04-20 | 2001-02-16 | | Akvastasjonen (Vestland, Norway) |
| Hydra sp. | | 1991-08-27 | 1991-08-27 | | Jarenvannet (Innlandet, Norway) |
| Hydra sp. | | 1989-09-14 | 1989-09-14 | | Myravatnet (Vestland, Norway) |
| Hydra sp. | | 1989-09-20 | 1989-09-20 | | Sagtjernet (Innlandet, Norway) |
| Hydra sp. | | 1990-10-25 | 1990-10-25 | | Moensvatnet (Vestland, Norway) |
| Hydra sp. | | 1989-11-07 | 1989-11-07 | | Moensvatnet (Vestland, Norway) |
| Hydra sp. | | 1989-09-27 | 1989-09-27 | | Vikerauntjønna (Trøndelag, Norway) |
| Hydra sp. | | 1989-09-14 | 1989-09-14 | | Hostadvatnet (Møre og Romsdal, Norway) |
| Hydra sp. | | 1989-10-08 | 1989-10-08 | | Hammervatnet (Trøndelag, Norway) |
| Hydra sp. | | 1989-09-20 | 1989-09-20 | | Årungen (Akershus, Norway) |
| Hydra sp. | | 1989-09-01 | 1989-09-01 | | Kolbjørnviksjøen (Østfold, Norway) |
| Hydra sp. | | 1989-09-14 | 1989-09-14 | | Kvitblikkvannet (Nordland, Norway) |
| Hydra sp. | | 1989-09-28 | 1989-09-28 | | Husavatnet (Vestland, Norway) |
| Hydra sp. | | 1989-08-28 | 1989-08-28 | | Arkavatnet (Rogaland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-01-24 | 2001-01-24 | | Espegrend (Vestland, Norway) |
| Hydroider (Hydroidea indet.) | | 2001-01-24 | 2001-01-24 | | Espegrend (Vestland, Norway) |
| Hydra sp. | | 1992-06-12 | 1992-06-12 | | Harestuvannet (Akershus, Norway) |