Pristina (genus)
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Pristina is a genus of annelid worms in the Naididae family. The genus comprises 21 species and is distributed worldwide.
anatomy
Pristina are few bristles with about 15 to 120 segments and a body length of 2 to 20 mm. The bristles (chaetae) on the belly and back can occur individually or in bundles, depending on the type, designed as hair bristles or with divided tips as hooks or straight shape. The abdominal bristles usually begin on the second segment, the stomach between the sixth and eighth segments.
Way of life
Species of Pristina live aquatically or as part of the bottom fauna , the aquatic species not only occur in boggy stagnant waters, but also in flowing waters with little organic material. The worms are herbivorous and detritivorous . Like the other genera of the Naidinae , the Pristina can reproduce sexually and asexually .
Systematics
The genus Pristina is more closely related to the genera Ainudrilus , Epirodrilus , Monopylephorus and Rhyacodrilus from the subfamily Rhyacodrilinae than with the other members of the subfamily Naidinae . Therefore, this subfamily is not to be viewed as monophyletic , as Pristina either would be separated from the Naidinae and placed in the Rhyacodrilinae or, conversely, the related genera would have to come into the subfamily Naidinae.
Pristina consists of 21 species:
- Subfamily Naidinae
- Genus Pristina
- Species Pristina acuminata
- Kind Pristina aequiseta
- Species Pristina americana
- Species Pristina bilobata
- Art Pristina breviseta
- Species Pristina equiseta
- Species Pristina evelinae
- Kind of Pristina foreli
- Species Pristina idrensis
- Kind Pristina Leidyi
- Species Pristina longidentata
- Species snout worm ( Pristina longiseta )
- Species Pristina longisoma
- Kind Pristina menoni
- Species Pristina notopora
- Kind Pristina osborni
- Kind of Pristina plumaseta
- Species Pristina proboscidea
- Art Pristina schmiederi
- Kind Pristina sima
- Species Pristina synclites
- Genus Pristina
Individual evidence
- ↑ a b Ralph Brink Hurst: Studies on the North American aquatic Oligochaeta. Nadidae and Opistocystidae. October 20, 1964
- ↑ Ralph Brinkhurst: A Guide for the Identification of British aquatic Oligochaeta , 1971. In Freshwater Biological Association Scientific Publication No. 22nd
- ^ Rüdiger Schmelz, Rut Collado and Jörg Römbke: Taxic diversity and distribution of microdrile oligochaetes (Enchytraeidae, Tubificidae, Naididae) in secondary forests and pastures of the Mata Atlântica (Parana, Brazil) . The 8th International Symposium on Earthworm Ecology, 4th – 9th September 2006, Kraków, Poland, 2006
- ↑ James Thorp, Alan Covich: Ecology and Classification of North American Freshwater Invertebrates . 2nd edition, Academic Press, 2001 ISBN 0-12690-647-5
- ↑ Ruth Patrick: Rivers of the United States: The eastern and southeastern states 1996. ISBN 0471303461
- ^ I. Envall, M. Källersjö and C. Erséus: Molecular evidence for the non-monophyletic status of Naidinae (Annelida, Clitellata, Tubificidae). Mol. Phylogenet. Evol., 40, 2, pp. 570-584, 2006
- ↑ Genus Pristina , Animal Diversity Web; Retrieved October 27, 2010