refers to a type of reptile that includes turtles and tortoises

can refer to the broader classification of aquatic or semi-aquatic reptiles

जल-थल कछुआ प्रजाति

English Usage: Many chelonian reptiles inhabit both water and land environments.

Hindi Usage: कई जल-थल कछुआ प्रजातियां पानी और ज़मीन दोनों पर निवास करती हैं।