soft-shelled turtle

US /ˌsɑːft ˌʃeld ˈtɜːr.tl̩/
UK /ˌsɑːft ˌʃeld ˈtɜːr.tl̩/
"soft-shelled turtle" picture
1.

a freshwater turtle with a flat, leathery shell, typically found in North America and Asia

:
We saw a large soft-shelled turtle basking on the riverbank.
The soft-shelled turtle is known for its long, snorkel-like snout.