Aquarium guide
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| Physas |
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Physas
Their spiraled shell is markedly less elongate than that of Malayan snails and
they are also slightly bigger. They do not play an important role in the control
of unwanted algae. As they reproduce rapidly, it is best not to introduce them into
an aquarium. Size: 1-2 cm.
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ЮЖНОСИБИРСКАЯ РАСА (туранская раса) , занимает переходное положение между европеоидной расой и монголоидной расой (монголоидные черты преобладают). Распространена в Казахстане, Ср. Азии (каракалпаки, киргизы), на Алтае, в Монголии.