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Pterotrachea Minuta
''Pterotrachea'' is a taxonomic genus of medium-sized to large floating sea slugs, marine pelagic gastropod molluscs in the family Pterotracheidae, which is in the infraorder Littorinimorpha. As such they are quite closely related to such families as the tritons ( Ranellidae) and the tun shells ( Tonnidae). These pelagic slugs are not at all closely related to the pelagic opisthobranch gastropods such as the sea angels and sea butterflies. Species Species within the genus ''Pterotrachea'' include: * '' Pterotrachea coronata'' Forskål, 1775 * '' Pterotrachea hippocampus'' Philippi, 1836 * '' Pterotrachea keraudrenii'' J. E. Gray, 1850 * '' Pterotrachea minuta'' * '' Pterotrachea scutata'' Gegenbaur, 1855 ;''Taxon inquirendum'' * ''Pterotrachea talismani ''Pterotrachea'' is a taxonomic genus of medium-sized to large floating sea slugs, marine pelagic gastropod molluscs in the family Pterotracheidae, which is in the infraorder Littorinimorpha. As such they are qu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
