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Platynereis
''Platynereis'' is a genus of marine biology, marine annelid worms that belongs to the Nereididae, a family of errant polychaete worms. The species ''Platynereis dumerilii'' is used in development biology to study development (embryogenesis), in particular because their embryos are largely transparent, and thus easy to follow. Apical organs such as this one are photosensitive which is a key component in their formation. They also have a common ancestor with cnidarians and bilaterians. Species * ''Platynereis abnormis'' * ''Platynereis antipoda'' * ''Platynereis arafurensis'' * ''Platynereis australis'' * ''Platynereis bengalensis'' * ''Platynereis bicanaliculata'' * ''Platynereis calodonta'' * ''Platynereis cebuensis'' * ''Platynereis coccinea'' * ''Platynereis cristatus'' * ''Platynereis dumerilii'' * ''Platynereis festiva'' * ''Platynereis fuscorubida'' * ''Platynereis hugonis'' * ''Platynereis hutchingsae'' * ''Platynereis insolita'' * ''Platynereis karaka'' * ''Platynereis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platynereis Dumerilii
''Platynereis dumerilii'' is a species of annelid polychaete worm. It was originally placed into the genus ''Nereis'' and later reassigned to the genus '' Platynereis''. ''Platynereis dumerilii'' lives in coastal marine waters from temperate to tropical zones. It can be found in a wide range from the Azores, the Mediterranean, in the North Sea, the English Channel, and the Atlantic down to the Cape of Good Hope, in the Black Sea, the Red Sea, the Persian Gulf, the Sea of Japan, the Pacific, and the Kerguelen Islands. ''Platynereis dumerilii'' is today an important lab animal, it is considered as a living fossil, and it is used in many phylogenetic studies as a model organism. Description ''Platynereis dumerilii'' is a small marine ragworm: Males reach a length of 2 to 3 cm, while females reach a length of 3 to 4 cm. Like a number of invertebrate phyla, ''Platynereis dumerilii'' has an axochord, a paired longitudinal muscle that displays striking similarities to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |