Abietinaria Macrotheca
''Abietinaria'' is a genus of hydrozoans belonging to the family Sertulariidae. The genus has almost cosmopolitan distribution. Species Species: *''Abietinaria abietina'' *''Abietinaria alexanderi'' *''Abietinaria alternitheca'' *''Abietinaria anguina'' *''Abietinaria annulata'' *''Abietinaria compressa'' *''Abietinaria crassiparia'' *''Abietinaria cruciformis'' *''Abietinaria derbeki'' *''Abietinaria elsaeoswaldae'' *''Abietinaria expansa'' *''Abietinaria filicula'' *''Abietinaria fusca'' *''Abietinaria gagarae'' *''Abietinaria gigantea'' *''Abietinaria gracilis'' *''Abietinaria immersa'' *''Abietinaria inconstans'' *''Abietinaria interversa'' *''Abietinaria juniperus'' *''Abietinaria kincaidi'' *''Abietinaria laevimarginata'' *''Abietinaria macrotheca'' *''Abietinaria melo'' *''Abietinaria merkii'' *''Abietinaria pacifica'' *''Abietinaria pulchra'' *''Abietinaria raritheca'' *''Abietinaria rigida'' *''Abietinaria smirnowi'' *''Abietinaria spasskii' ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Hydrozoans
Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals and belong to the phylum Cnidaria. Some examples of hydrozoans are the freshwater jelly (''Craspedacusta sowerbyi''), freshwater polyps ('' Hydra''), ''Obelia'', Portuguese man o' war (''Physalia physalis''), chondrophores (Porpitidae), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid stage. Polyps The hydroid fo ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]