| NOUN | animal | spiny softshell, Trionyx spiniferus | river turtle of western United States with a warty shell |
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| Meaning | river turtle of western United States with a warty shell; prefers quiet water. | |
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| Synonym | Trionyx spiniferus | |
| Member of | Trionyx, genus Trionyx | type genus of the Trionychidae |
| Broader | soft-shelled turtle, pancake turtle | voracious aquatic turtle with a flat flexible shell covered by a leathery skin |
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