Entoprocta
Entoprocts | ||||||||
---|---|---|---|---|---|---|---|---|
Barentsia discreta
| ||||||||
Scientific classification | ||||||||
| ||||||||
Barentsiidae (Urnatellidae) |
Entoprocta (Gr. εντος, entos inside + προκτος, proktos anus) is a phylum of small aquatic animals, ranging in size from 0.5 mm to 5.0 mm. They have a lophophore, and as their name suggests, are distinguished from other lophophorates by the position of the anus inside the ring of cilia rather than outside. Other names include goblet worm and kamptozoan.
Entoprocts are filter feeders, their tentacles secreting a mucus that catches food particles, which is then moved towards the mouth by cilia on the tentacles. Nearly all species are sedentary, attached to the substrate by a stalk, with the body being cup-shaped. Some species are colonial, with multiple animals on branching systems of stalks.
Entoprocts can reproduce either by budding, or sexually. They are unusual in being sequential hermaphrodites.
The phylum includes about 150 species in several families. While most species are marine, the freshwater species Urnatella gracilis is widespread.
Family Barentsiidae
- Genus Barentsia
- Genus Pedicellinopsis
- Genus Pseudopedicellina
- Genus Coriella
- Genus Urnatella
Family Loxokalypodidae
- Genus Loxokalypus
Family Loxosomatidae
- Genus Loxosoma
- Genus Loxosomella
- Genus Loxomitra
- Genus Loxosomespilon
- Genus Loxocore
Family Pedicellinidae
- Genus Pedicellina
- Genus Myosoma
- Genus Chitaspis
- Genus Loxosomatoides
External links
Credits
New World Encyclopedia writers and editors rewrote and completed the Wikipedia article in accordance with New World Encyclopedia standards. This article abides by terms of the Creative Commons CC-by-sa 3.0 License (CC-by-sa), which may be used and disseminated with proper attribution. Credit is due under the terms of this license that can reference both the New World Encyclopedia contributors and the selfless volunteer contributors of the Wikimedia Foundation. To cite this article click here for a list of acceptable citing formats.The history of earlier contributions by wikipedians is accessible to researchers here:
The history of this article since it was imported to New World Encyclopedia:
Note: Some restrictions may apply to use of individual images which are separately licensed.