RANIDÆ, ii. [420]

Ranodon, ii. [413]

Rappia, ii. [419]

Rasbora, ii. [452]

Rasborichthys, ii. [453]

Rattle-snakes, ii. [384]

Rays, ii. [462]

Realia, ii. [521]

Rectes, ii. [272]

Recurvirostra, ii. [353]