Página en construcción
- Jabalí ➡ cerdo (Chordata, Mammalia, Artiodactyla, Sus)
- Jabalí chino (Chordata, Mammalia, Artiodactyla, Sus)
- J. euroasíatico (Chordata, Mammalia, Artiodactyla, Sus)
- J. europeo (Chordata, Mammalia, Artiodactyla, Sus)
- J. indio = j. de cresta(Chordata, Mammalia, Artiodactyla, Sus)
- J. pigmeo de Nepal (Chordata, Mammalia, Artiodactyla, Porcula)
- Jabalí verrugoso ➡ facóquero (Chordata, Mammalia, Artiodactyla, Phacochoerus)
- Jabalina➡ pecarí (Chordata, Mammalia, Artiodactyla, Tayassu)
- Jabitú africano (Chordata, Aves, Ciconiiformes, Ephippiorhynchus)
- J. americano (Chordata, Aves, Ciconiiformes, Jabiru)
- Jabonera (Chordata, Actinopterygii, Perciformes, Grammistes)
- Jacamar (Chordata, Aves, Piciformes, Galbula)
- J. de cola rojiza (Chordata, Aves, Piciformes, Galbula)
- J. de orejas blancas (Chordata, Aves, Piciformes, Galbula)
- Jacamar (gran) (Chordata, Aves, Piciformes, Jacamerops)
- Jacana (Chordata, Aves, Charadriiformes, Jacana)
- J. africano(Chordata, Aves, Charadriiformes, Jacana)
- J. americano (Chordata, Aves, Charadriiformes, Jacana)
- J. australiano (Chordata, Aves, Charadriiformes, Irediparra)
- J. de alas branceadas (Chordata, Aves, Charadriiformes, Hydrophasianus)
- J.de cola de faisán (Chordata, Aves, Charadriiformes, Hydrophasianus)
- Jaguar (Chordata, Mammalia, Carnivora, Panthera)
- Jaguarundi (Chordata, Mammalia, Carnivora, Herpailurus)
- Jantina ➡Yantina (Mollusca, Gastropoda, Caenogastropoda, Janthina)
- Japuta ➡ pomacéntridos (Chordata, Actinopterygii, Perciformes, Brama)
- Jaquetón (Chordata, Chondrichthyes, Carcharhiniformes, Carcharhinus)
- Jarabugo (Chordata, Actinopterygii, Cypriniformes, Squalius)
- Jardinero (Chordata, Aves, Passeriformes, Ptilonorhynchus)
- J. violáceo (Chordata, Aves, Passeriformes, Ptilonorhynchus)
- Jardinero cabezagris (Chordata, Aves, Passeriformes, Chlamydera)
- Jerbillo(Chordata, Mammalia, Rodentia, Meriones)
- J. asiático (Chordata, Mammalia, Rodentia, Meriones)
- J. de cola gruesa (Chordata, Mammalia, Rodentia, Pachyuromys)
- J. de orejas cortas (Chordata, Mammalia, Rodentia, Desmodillus)
- J. de planta desnuda (Chordata, Mammalia, Rodentia, Tatera)
- J. de Przewalski (Chordata, Mammalia, Rodentia, Meriones)
- J. índico (Chordata, Mammalia, Rodentia, Tatera)
- J. pigmeo (Chordata, Mammalia, Rodentia, Gerbillus)
- Jerbillo (gran) (Chordata, Mammalia, Rodentia, Rhombomys)
- J. de planta desnuda (gran) (Chordata, Mammalia, Rodentia, Tatera)
- Jerbo (Chordata, Mammalia, Rodentia, Jaculus)
- J. de pies plumosos (Chordata, Mammalia, Rodentia, Dipus)
- J. de Siberia = asiático (Chordata, Mammalia, Rodentia, Allactaga)
- J. del desierto = j. común (Chordata, Mammalia, Rodentia, Jaculus)
- Jerbo marsupial ➡ ratón marsupial (Chordata, Mammalia, Dasyuromorphia, Antechinomys)
- Jerbo ratón (Chordata, Mammalia, Rodentia, Zapus)
- J. cervino (Chordata, Mammalia, Dasyuromorphia, Antechinomys)
- J. de América = ratón americano (Chordata, Mammalia, Rodentia, Peromyscus)
- J. de Australia (Chordata, Mammalia, Dasyuromorphia, Antechinomys)
- J. de Nueva Guinea (Chordata, Mammalia, Dasyuromorphia, Antechinomys)
- Jibia ➡ sepia (Mollusca, Cephalopoda, Sepiida, Sepia)
- Jigatai ➡ asno salvaje (Chordata, Mammalia, Perissodactyla, Equus)
- Jilguero (Chordata, Aves, Passeriformes, Carduelis)
- Jineta ➡ gineta (Chordata, Mammalia, Carnivora, Genetta)
- Jirafa (Chordata, Mammalia, Artiodactyla, Giraffa)
- Jird (Chordata, Mammalia, Rodentia, Meriones)
- J. de mediodía (Chordata, Mammalia, Rodentia, Meriones)
- Jiut-jiut (Chordata, Aves, Passeriformes, Acrocephalus)