Lutodrilus multivesiculatus
| Lutodrilus multivesiculatus | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the family | ||||||||||||
| Lutodrilidae | ||||||||||||
| McMahan , 1976 | ||||||||||||
| Scientific name of the genus | ||||||||||||
| Lutodrilus | ||||||||||||
| McMahan , 1976 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Lutodrilus multivesiculatus | ||||||||||||
| McMahan , 1976 |
Lutodrilus multivesiculatus is the name of a oligochaetes - Art in the ground in freshwater living Crassiclitellaten the same time the only species of the genus Lutodrilus and family Lutodrilidae represents and in North America in southeastern Louisiana is widespread.
features
The body of Lutodrilus multivesiculatus has a rectangular cross-section and has no dorsal pores.
The intestinal canal does not form a gizzard, but there is an enlargement in the midgut between the 21st and the 24th segment. Calcium glands are also missing. The closed blood vessel system has 11 pairs of lateral hearts between the 11th and 21st segment . The large nephridia are well developed.
The clitellum of the hermaphrodite is annular and takes 35-51 segments between 25 (sometimes 20) and 61 (sometimes 71.) segment. The paired pubertal tuberosities are wing-shaped and extend over most of the clitellar region. Anneleworm has 10 pairs of testes located between the 12th and 21st segments and a pair of ovaries in the 23rd segment. The only pair of female genital orifices is in the 24th segment, i.e. in front of the only pair of male genital orifices which are in the 32nd segment within the clitellum. The numerous interparietal receptacula seminis have no blind sacs and open outward in the furrows between the 12th and the 26th segment.
Distribution, habitat and way of life
Lutodrilus multivesiculatus is found in the United States ( North America ) in southeastern Louisiana between the Mississippi and Pearl rivers . It lives as a substrate eater in the muddy subsoil and bank area of slowly flowing rivers .
literature
- Michael Lee McMahan (1976): Preliminary notes on a new megadrile species, genus and family from the southeastern United States. Megadrilogica 2 (11), pp. 6-8.
- Michael Lee Mcmahan (1976): Biology of a Limicolous Megadrile (Annelida: Oligochaeta) From Louisiana. LSU Historical, Dissertations and Theses, 3032.
- Michael Lee McMahan (1979): Anatomical notes on Lutodrilus multivesiculatus. Proceedings of the Biological Society of Washington 92 (1), pp. 84-97.
- Michael Lee McMahan (1998): Ecology of the Limicolous Megadrile Lutodrilus multivesiculatus (Annelida: Oligochaeta). Megadrilogica, 7 (6), pp. 40-44.
- Reginald William Sims (1981): A classification and the distribution of earthworms, suborder Lumbricina (Haplotaxida: Oligochaeta). Bulletin of the British Museum (Natural History), Zoology Series 39 (2), pp. 103–124, here p. 109.