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Overview

Distribution

Range Description

This species is known only from a small area on the north-western periphery of Toluca city, central State of Mexico, Mexico, at 3,000m asl.
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Source: IUCN

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Physical Description

Type Information

Paratype for Ambystoma granulosum
Catalog Number: USNM 137206
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, ca. 12 mi NW of, Km 74, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116653
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 15 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116652
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 15 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116651
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 15 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116650
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 15 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116649
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 15 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116648
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 15 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116647
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116646
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116645
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116644
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116643
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116642
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116641
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116640
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116639
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116638
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116637
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116636
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116635
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116634
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Ambystoma granulosum
Catalog Number: USNM 116633
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1939
Locality: Toluca, 11 km W of, México, Mexico
  • Paratype: Taylor, E. H. 1944. Univ. Kansas Sci. Bull. 30 (5): 57, plate 8, figures 1-3.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is a metamorphosing species spending most of its time on land in grassland habitat. It breeds in small pools and ponds, both artificial and natural.

Systems
  • Terrestrial
  • Freshwater
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Source: IUCN

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
CR
Critically Endangered

Red List Criteria
B1ab(iii)

Version
3.1

Year Assessed
2004

Assessor/s
Brad Shaffer, Oscar Flores-Villela, Gabriela Parra-Olea, David Wake

Reviewer/s
Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)

Contributor/s

Justification
Listed as Critically Endangered because its Extent of Occurrence is less than 100 km2, all individuals are in a single sub-population, and there is continuing decline extent and quality of its habitat on the northwestern periphery of Toluca City.
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Population

Population
There is no information available on the population status of this species.

Population Trend
Decreasing
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Threats

Major Threats
Introduced predatory fishes are the major threat to this species, but the habitat also has been heavily impacted due to extensive urban and agricultural expansion (leading to the desiccation and pollution of its breeding habitat).
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Management

Conservation Actions

Conservation Actions
It does not occur in any protected area, and the conservation and restoration of its habitats is urgent. It might be possible to breed this species in captivity. A survey is urgently needed to determine the current status of this species. Protected under the category Pr (Special protection) by the Government of Mexico.
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Wikipedia

Granular salamander

The granular salamander or ajolote (Ambystoma granulosum) is a species of mole salamander in the Ambystomatidae family. It is found only in Mexico. Its natural habitats are subtropical or tropical high-altitude grassland, freshwater marshes, intermittent freshwater marshes, and ponds. It is threatened by habitat loss and overcropping along with the scaling of their skins.

Distribution[edit]

Ambystoma granulosum is endemic to a small area of central Mexico close to and just to the north west of Toluca in Mexico State, at an altitude of around 3,000 m (9,843 ft). Its population size is unknown.[1]

References[edit]

  1. ^ "Ambystoma granulosum Taylor, 1944". Globally Threatened Amphibian Species. Amphibians.org. Retrieved 2014-05-03. 


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