‘Reptiles, Natural History of’ (see [Gosse]).

‘Rerum Naturalium Thesauri’ (Seba), [278].

‘Rervm Natvralivm Braziliæ’ (Marcgravius), [397].

[Respiration]; sometimes partial, [144];

cessation of, [145];

weak, [146];

when feeding, [132], [141];

in sea-ss., [132] (see [glottis], [hibernation], etc.).

Ribbon fish, [249], [250].

Ribs; action of, [207];