Paedophryne amauensis
Paedophryne amauensisA minute microhylid frog described from near Amau Village. Adult males in the type series measured 7.0–8.0 mm snout–vent length.
Length: 7.0–8.0 mm
Mass: not supplied
Field Atlas
Seven small species.
Seven evidence records.
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7 of 7 records · Filters are local and do not change source claims.
Nano-chameleon
Brookesia nanaAn extremely miniaturized chameleon described from the Sorata massif. The paper reports a 21.6 mm total-length adult male and 28.9 mm adult female.
Length: 21.6–28.9 mm
Mass: not supplied
Satomi's pygmy seahorse
Hippocampus satomiaeA pygmy seahorse reported by Smithsonian Ocean at about 13 mm long.
Length: 13.0 mm
Mass: not supplied
Bargibant's pygmy seahorse
Hippocampus bargibantiA coral-associated pygmy seahorse reported at roughly 2 cm long and notable for close visual matching to its gorgonian host.
Length: 20.0 mm
Mass: not supplied
Kitti's hog-nosed bat / bumblebee bat
Craseonycteris thonglongyaiBat Conservation International describes the bumblebee bat as about two grams with an inch-long body.
Length: 25.4 mm
Mass: 2.0 g
Etruscan shrew
Suncus etruscusAn extremely small shrew with reported adult masses of 1.8–3 g and lengths of 35–50 mm.
Length: 35.0–50.0 mm
Mass: 1.8–3.0 g
Bee hummingbird
Mellisuga helenaeThe Smithsonian identifies the bee hummingbird of Cuba as the smallest bird and reports a weight of 1.95 g.
Length: not supplied
Mass: 1.95 g
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Atlas evidence rule
A tiny-looking image is not enough to enter this release set. Each record needs a named species plus a credible source that supports at least one adult-size or species-level scale claim.