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rusty swordfern

Polystichum echinatum

Rusty-faced Parrot

Hapalopsittaca amazonina

Rusty-gray Lesser Bamboo Lemur

Hapalemur meridionalis

Rusty-headed Spinetail

Synallaxis fuscorufa

Rusty-throated Wren-babbler

Spelaeornis badeigularis

Rusty-tinged Antpitta

Grallaria przewalskii

Rustyback

Asplenium ceterach

Rustytwig Nectandra

Nectandra ruforamula

Ruthven's Anadia

Anadia pulchella

Ruthven's Robber Frog

Serranobatrachus ruthveni

Ruthven's Robber Frog

Pristimantis ruthveni

Ruwenzori Horseshoe Bat

Rhinolophus ruwenzorii

Rye Brone

Bromus secalinus

Rylands' Bald-faced Saki

Pithecia rylandsi

Ryukyu Flying Fox

Pteropus dasymallus

Ryukyu Long-furred Rat

Diplothrix legata

Ryukyu Tube-nosed Bat

Murina ryukyuana

Rzedowski's Pine

Pinus rzedowskii

Saalas barkborre

Pityogenes saalasi

Saaristo's giant mite

Michaelothyrus seychellensis

saaristokiiluri

Dolichopus sabinus

Sabah Grizzled Langur

Presbytis sabana

Sabah kapur

Dryobalanops beccarii

Salminus affinis

Sabarimala Night Frog

Nyctibatrachus sabarimalai