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Apart from the scare-setaceous species, the lake harbours a curious representative of the multi-setaceous worms - the policheta maasayunkia baikalica.

It lives in small tubes built of silt and sand particles, fastened together with a specific substance.

Besides the algae, about 20 species of flowering plants have been found here.

The lake's bays and silty lagoons, its sheltered coves, and the river deltas harbour such plants as rhdest, thin reed, water buckwheat, cattail, hornwort, and sedge.

In no other lake are the infuzoria of such great importance in the life of the organisms inhabiting the water's depths.

Certain infuzoria species are found even at a depth of 600 metres!

The Baikal worms feed along the lake's bottom, where they search for a victim, paralyse it, then envelop it in mucus and draw it slowly inside the body.

By feeding on sick and weakened organisms, the flatworms function as medical orderlies.

Especially plentiful under patches of transparent ice is the gymnodium, a light-and cold-loving peredinial algae.They have bright patterns of various hues, and can reach the size of about 30 centimetres long and 4-5 centimetres wide, when spread out.All these worms are endemic; they solely inhabit the open parts of Baikal.All the Baikal sponges live on stony ground in open open areas of the lake.Research studies by the Pisces, a deep-water apparatus, show that they live at depths reaching 1,000 metres. Among the great variety of worms inhabiting Baikal, the unusual flat ciliary worms (turbilaria in Latin) are plentiful.

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