Tobrilus steineri

Based on occurrence and relationship, nematodes can be divided in two groups: marine nematodes and inland species. The animal parasites belong to the latter. The inland species live in soil, in and on plants, in animals, dung, deep ground water; all inland species can be found in freshwater where they survive on aquatic plants or have been washed in with rain water and subsequently survive for a long period. If there is one group, which is typical for freshwater, then it are the members of the Tobrilidae of which an head end is shown. Tobrilus species occur all over the world; the impression exists that they evolved to a heterogeneous group in freshwater. Some species feed on unicellular algae, others feed on bacteria or are carnivorous.

More pictures of Tobrilus steineri:

Tobrilus steineri: overview oesophagus
Tobrilus steineri: overview oesophagus

Tobrilus steineri: overview tail
Tobrilus steineri: overview tail

Tobrilus steineri: oral cavity with some teeth
Tobrilus steineri: oral cavity with some teeth

Tobrilus steineri: amphid
Tobrilus steineri: amphid

Tobrilus steineri: setae langer dan halve kopdiameter (male)
Tobrilus steineri: setae langer dan halve kopdiameter (male)
Tobrilus steineri: oral cavity (male)
Tobrilus steineri: oral cavity (male)
Tobrilus steineri: setae langer dan halve kopdiameter
Tobrilus steineri: setae langer dan halve kopdiameter
Tobrilus steineri: setae, cuticle
Tobrilus steineri: setae, cuticle
Tobrilus steineri: darmportier, oesophagus
Tobrilus steineri: darmportier, oesophagus
Tobrilus steineri: cloaca, gubernaculum, spicules
Tobrilus steineri: cloaca, gubernaculum, spicules
Tobrilus steineri: cloaca, gubernaculum, ged. spicules
Tobrilus steineri: cloaca, gubernaculum, ged. spicules
Tobrilus steineri: suplements 1 and 2
Tobrilus steineri: suplements 1 and 2
Tobrilus steineri: suplements 3-5
Tobrilus steineri: suplements 3-5
Tobrilus steineri: suplement 6
Tobrilus steineri: suplement 6
Tobrilus steineri: anal opening
Tobrilus steineri: anal opening
Tobrilus steineri: vaginamusculatuur sterk ontwikkeld
Tobrilus steineri: vaginamusculatuur sterk ontwikkeld
Tobrilus steineri: vaginamusculatuur sterk ontwikkeld
Tobrilus steineri: vaginamusculatuur sterk ontwikkeld
Tobrilus steineri: staartklieren aanwezig
Tobrilus steineri: staartklieren aanwezig
Tobrilus steineri: vulva, vagina
Tobrilus steineri: vulva, vagina
Tobrilus steineri: ged. staart, setae
Tobrilus steineri: ged. staart, setae
Tobrilus steineri: tail with conspicious gland opening
Tobrilus steineri: tail with conspicious gland opening

(Click on the pictures for an enlargement, © Laboratory of Nematology/Pictures: Hanny van Megen)