| Status: | Species: | Common Name: | Last Update: |
|---|---|---|---|
| Offline | Campalecium medusiferum | Campalecium medusiferum | ----- |
| Offline | Endothecium paucinodum | Endothecium paucinodum | ----- |
| Offline | Endothecium reduplicatum | Endothecium reduplicatum | ----- |
| Offline | Halecium annulatum | Halecium annulatum | ----- |
| Offline | Halecium articulosum | Halecium articulosum | ----- |
| Offline | Halecium beanii | Halecium beanii | ----- |
| Offline | Halecium beringi | Halecium beringi | ----- |
| Offline | Halecium bermudense | Halecium bermudense | ----- |
| Offline | Halecium capillare | Halecium capillare | ----- |
| Offline | Halecium corrugatissimum | Halecium corrugatissimum | ----- |
| Offline | Halecium corrugatum | Halecium corrugatum | ----- |
| Offline | Halecium curvicaule | Halecium curvicaule | ----- |
| Offline | Halecium delicatulum | Halecium delicatulum | ----- |
| Offline | Halecium densum | Halecium densum | ----- |
| Offline | Halecium diminutivum | Halecium diminutivum | ----- |
| Offline | Halecium dysymmetrum | Halecium dysymmetrum | ----- |
| Offline | Halecium exiguum | Halecium exiguum | ----- |
| Offline | Halecium expansum | Halecium expansum | ----- |
| Offline | Halecium fasciculatum | Halecium fasciculatum | ----- |
| Offline | Halecium flexum | Halecium flexum | ----- |
| Offline | Halecium fragile | Halecium fragile | ----- |
| Offline | Halecium fruticosum | Halecium fruticosum | ----- |
| Offline | Halecium groenlandicum | Halecium groenlandicum | ----- |
| Offline | Halecium halecinum | Herringbone Hydroid | ----- |
| Offline | Halecium insolens | Halecium insolens | ----- |
| Offline | Halecium kofoidi | Halecium kofoidi | ----- |
| Offline | Halecium labrosum | Halecium labrosum | ----- |
| Offline | Halecium lankesteri | Halecium lankesteri | ----- |
| Offline | Halecium lenticulare | Halecium lenticulare | ----- |
| Offline | Halecium macrocephalum | Halecium macrocephalum | ----- |
| Offline | Halecium marsupiale | Halecium marsupiale | ----- |
| Offline | Halecium minutum | Halecium minutum | ----- |
| Offline | Halecium muricatum | Sea Hedgehog Hydroid | ----- |
| Offline | Halecium nanum | Halecium nanum | ----- |
| Offline | Halecium ochotense | Halecium ochotense | ----- |
| Offline | Halecium ornatum | Halecium ornatum | ----- |
| Offline | Halecium paucinodum | Halecium paucinodum | ----- |
| Offline | Halecium plumosum | Halecium plumosum | ----- |
| Offline | Halecium pusillum | Halecium pusillum | ----- |
| Offline | Halecium pygmaeum | Halecium pygmaeum | ----- |
| Offline | Halecium reflexum | Halecium reflexum | ----- |
| Offline | Halecium regulare | Halecium regulare | ----- |
| Offline | Halecium reversum | Halecium reversum | ----- |
| Offline | Halecium scutum | Halecium scutum | ----- |
| Offline | Halecium sessile | Halecium sessile | ----- |
| Offline | Halecium speciosum | Halecium speciosum | ----- |
| Offline | Halecium telescopicum | Halecium telescopicum | ----- |
| Offline | Halecium tenellum | Halecium tenellum | ----- |
| Offline | Halecium tenue | Halecium tenue | ----- |
| Offline | Halecium undulatum | Halecium undulatum | ----- |
| Offline | Halecium vagans | Halecium vagans | ----- |
| Offline | Halecium washingtoni | Halecium washingtoni | ----- |
| Offline | Halecium wilsoni | Halecium wilsoni | ----- |
| Offline | Hemitheca intermedia | Hemitheca intermedia | ----- |
| Offline | Hydrodendron alternatum | Hydrodendron alternatum | ----- |
| Offline | Hydrodendron carchesium | Hydrodendron carchesium | ----- |
| Offline | Hydrodendron corrugatum | Hydrodendron corrugatum | ----- |
| Offline | Hydrodendron expansum | Hydrodendron expansum | ----- |
| Offline | Hydrodendron gracile | Hydrodendron gracile | ----- |
| Offline | Hydrodendron laxum | Hydrodendron laxum | ----- |
| Offline | Hydrodendron mirabile | Hydrodendron mirabile | ----- |
| Offline | Hydrodendron tottoni | Hydrodendron tottoni | ----- |
| Offline | Mitrocomium medusiferum | Mitrocomium medusiferum | ----- |
| Offline | Sagamihydra dyssymetra | Sagamihydra dyssymetra | ----- |




