Alciopidae
   HOME

TheInfoList



OR:

Alciopidae is a family of
polychaetes Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are m ...
belonging to the order
Phyllodocida Phyllodocida is an order of polychaete worms in the subclass Aciculata. These worms are mostly marine, though some are found in brackish water. Most are active benthic creatures, moving over the surface or burrowing in sediments, or living in cr ...
. Alciopids are notable for representing the fourth phylum — besides
arthropods Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton with a cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate, a body with differentiated (Metam ...
,
chordates A chordate ( ) is a bilaterian animal belonging to the phylum Chordata ( ). All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics ( synapomorphies) that distinguish them from ot ...
, and
mollusks Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The num ...
— to have evolved high-resolution vision, namely vision that can distinguish objects from the visual background, enabling interaction with said objects. This has been demonstrated in particular in ''Vanadis'' cf. ''formosa'', ''Torrea candida'', and ''Naiades cantrainii.'' Genera: * '' Alciopa'' Audouin & Milne Edwards, 1833 * '' Alciopina'' Claparède & Panceri, 1867 * '' Krohnia'' Quatrefages, 1866 * '' Naiades'' Delle Chiaje, 1830 * '' Plotohelmis'' Chamberlin, 1919 * '' Pseudalciopa'' Støp-Bowitz, 1991 * '' Rhynchonereella'' Costa, 1864 * '' Torrea'' Quatrefages, 1850 * '' Vanadis'' Claparède, 1870 * '' Watelio'' Støp-Bowitz, 1948


References

{{Taxonbar, from=Q3920721 Phyllodocida Annelid families