-
-
Indonesian porcupine
Hystrix pumila
-
-
Sumatran porcupine
Hystrix sumatrae
-
-
Allen's big-eared bat
Idionycteris phyllotis
-
-
long-eared scaly-tailed flying squirrel
Idiurus macrotis
-
-
pygmy scaly-tailed flying squirrel
Idiurus zenkeri
-
-
Longman's beaked whale
Indopacetus pacificus
-
-
-
-
-
-
indris, sifakas, and relatives
Indriidae
-
-
Amazon river dolphin
Inia geoffrensis
-
-
Chilean climbing mouse
Irenomys tarsalis
-
-
yellow-crowned brush-tailed rat
Isothrix bistriata
-
-
Atlantic bamboo rat
Kannabateomys amblyonyx