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Page 142
The taxonomy of Aschelminthes presents difficulties that have not been fully
resolved. Annotated ... aquatic; without corona; cilia on body, particularly on
ventral surface; adhesive tubes present; no trophi or mastax; about 1,800 known
species.
The taxonomy of Aschelminthes presents difficulties that have not been fully
resolved. Annotated ... aquatic; without corona; cilia on body, particularly on
ventral surface; adhesive tubes present; no trophi or mastax; about 1,800 known
species.
Page 440
On present evidence, then, the robust form had a wide distribution in the Old
World; the gracile form was apparently confined to Africa. CONTROVERSIES
CONCERNING CLASSIFICATION As already noted, the view that two forms are ...
On present evidence, then, the robust form had a wide distribution in the Old
World; the gracile form was apparently confined to Africa. CONTROVERSIES
CONCERNING CLASSIFICATION As already noted, the view that two forms are ...
Page 668
In 12000 BC , ice covered all of northern Europe as far as the present German -
Polish coastline ; by 7700 BC glacial meltwater had formed the Yoldia Sea ,
which stretched east from the present Skagerrak across what is now lake - strewn
...
In 12000 BC , ice covered all of northern Europe as far as the present German -
Polish coastline ; by 7700 BC glacial meltwater had formed the Yoldia Sea ,
which stretched east from the present Skagerrak across what is now lake - strewn
...
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