Home > Species related by geography to the Rio Negro tuco-tuco
Species that have a similar geographic range to the Rio Negro tuco-tuco (Ctenomys rionegrensis)
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Narosky’s seedeater (Sporophila zelichi)
A small, attractive bird, Narosky’s seedeater has a red-brown back and belly contrasting with dark blue wings and tail, the wing feathers... More 3 Images 0 videos -
Geoffroy’s cat (Leopardus geoffroyi)
Information on the Geoffroy’s cat is currently being researched and written and will appear here shortly... More 9 Images 1 Video -
Porbeagle (Lamna nasus)
The porbeagle is a stout, heavy shark with a pointed, conical snout and a crescent-shaped caudal, or tail, fin. Its name is thought to... More 10 Images 1 Video -
Chital (Axis axis)
Information on the chital is currently being researched and written and will appear here shortly... More 39 Images 3 Videos -
Margay (Leopardus wiedii)
A beautifully patterned small cat, somewhat larger than a large house cat, the margay varies in colour from tawny yellow to greyish brown... More 16 Images 2 Videos -
Giant anteater (Myrmecophaga tridactyla)
As its common name suggests, the giant anteater (Myrmecophaga tridactyla) is the largest of the living anteaters and is instantly... More 35 Images 10 Videos -
South American fur seal (Arctocephalus australis )
The South American fur seal is a relatively stocky fur seal with a moderately long, flat-topped, pointed muzzle, a noticeable forehead... More 22 Images 1 Video -
Giant otter (Pteronura brasiliensis)
The giant otter, known through much of its range as the 'river wolf', is one of South America's top carnivores and is the largest of the... More 50 Images 16 Videos -
Grey brocket (Mazama gouazoubira)
Information on the grey brocket is currently being researched and written and will appear here shortly... More 8 Images 0 videos -
Neotropical otter (Lontra longicaudis)
Also known as the long-tailed otter, the Neotropical otter (Lontra longicaudis) possesses a remarkably long, cylindrical tail which makes up... More 11 Images 0 videos -
Shortnose guitarfish (Zapteryx brevirostris)
Information on the shortnose gutiarfish is currently being researched and written and will appear here shortly... More 1 Image 0 videos -
Collared anteater (Tamandua tetradactyla)
Information on the collared anteater is currently being researched and written and will appear here shortly... More 25 Images 3 Videos -
South American coati (Nasua nasua)
Information on the South American coati is currently being researched and written and will appear here shortly... More 18 Images 1 Video -
House mouse (Mus musculus)
The house mouse (Mus musculus) is one of the most widely distributed and successful mammals in the world. It has dull greyish-brown fur... More 18 Images 8 Videos -
Nine-banded armadillo (Dasypus novemcinctus)
Information on the nine-banded armadillo is currently being researched and written and will appear here shortly... More 22 Images 7 Videos -
Sei whale (Balaenoptera borealis)
The sei whale is smaller in size than the fin whale (Balaenoptera physalus), and can be distinguished from this similar species because it... More 11 Images 2 Videos -
Puma (Puma concolor)
Other than man, the large, slender puma (Puma concolor) has the greatest natural distribution of any terrestrial mammal in the Western... More 79 Images 25 Videos -
Ocelot (Leopardus pardalis)
The largest of the small spotted cats, the ocelot (Leopardus pardalis) is one of the best known and most common cat species in its range... More 23 Images 8 Videos -
Franciscana (Pontoporia blainvillei)
The only river dolphin species to live in saltwater, the franciscana (Pontoporia blainvillei) is also one of the smallest dolphins. It has a... More 6 Images 0 videos -
Black spine-neck swamp turtle (Acanthochelys spixii)
Information on the black spine-neck swamp turtle is currently being researched and written and will appear here shortly... More 5 Images 0 videos -
Broad-snouted caiman (Caiman latirostris)
The broad-snouted caiman (Caiman latirostris) is, as its common name implies, recognised by its exceptionally broad snout that is nearly as... More 17 Images 1 Video -
Bronze whaler (Carcharhinus brachyurus)
Named for its bronze, or sometimes greyish-bronze upperside, this is a large, fairly slender shark with a moderately long and slightly... More 12 Images 1 Video -
Marsh deer (Blastocerus dichotomus)
This surprisingly shy and secretive deer is actually the largest native deer species in South America. Marsh deer have large, primarily... More 12 Images 1 Video -
Common vampire bat (Desmodus rotundus)
No species has contributed more to the misunderstanding and fear of bats than the common vampire bat (Desmodus rotundus). Public perception... More 12 Images 10 Videos -
Pampas cat (Leopardus colocolo)
This little known South American cat can be found in a greater variety of habitats than any other small cat on the continent. It looks like... More 10 Images 1 Video -
Brazilian guinea pig (Cavia aperea)
The Brazilian guinea pig closely resembles the well-known domestic guinea pig (Cavia porcellus), and is possibly its wild ancestor. Like its... More 6 Images 1 Video -
Rivera red-belly toad (Melanophryniscus devincenzii)
ARKive is working with the Global Amphibian Assessment (GAA) to source images of the world’s threatened amphibian species.A collaboration... More 12 Images 0 videos -
Broadnose sevengill shark (Notorynchus cepedianus)
A large-bodied, powerful species, the broadnose sevengill shark can be distinguished from most other sharks by the fact that it possesses... More 4 Images 1 Video -
Jaguarundi (Puma yagouaroundi)
The jaguarundi (Puma yagouaroundi) is one of the most unusual of the New World cat species, being somewhat weasel-like in appearance. The... More 27 Images 3 Videos -
Red spotted Argentina frog (Argenteohyla siemersi)
ARKive is working with the Global Amphibian Assessment (GAA) to source images of the world’s threatened amphibian species.A collaboration... More 4 Images 0 videos
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