Can anyone help me to identify these gastropods and mollusk?

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Sara Sayed

Dear Manoj,

The attached photos may help you to identify your samples.

the first sample may be Melanoides snail. The second photo may be Bulinus snail. The third one it is bivalves. Compare your samples by the attached key. And be attention with the apex and opening direction of shell (right or left).

Good luck,

M.C. Manoj

Thank you Sara for the pics...

Ton van Haaren

Were did you collect them? Country? Name of the Lake perhaps? It would help.

Emmanuel Klubi

Ton van Haaran is write the region of sample is a clue to species level.

Yambem Tenjing Singh

Does not look like collected from lake. Is this lake near to estuary or shore?

Hello Ton van Haaren,

It is a freshwater lake... Vellayani Lake, South India.

Hello Yambem Tenjing,

It is collected from a freshwater lake. And the shells are not there in the top sections. I started getting it from around 6 m, core depth.

Thank you @Junn Kitt Foor for the detailed explanation and reference.