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Overview

Distribution

Range Description

This species is endemic to the islands of San Diego and Santa Cruz in the Gulf of California, Mexico (Grismer 2002).
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Continent: Middle-America
Distribution: Mexico (Santa Cruz island, Gulf of California)  
Type locality: Santa Cruz island, Gulf of California, Baja California.
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© Peter Uetz

Source: The Reptile Database

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Physical Description

Type Information

Holotype for Sator angustus
Catalog Number: USNM 64262
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Sex/Stage: Male;
Preparation: Ethanol
Year Collected: 1911
Locality: Santa Cruz Island, Gulf of California, Isla Santa Cruz, Baja California Sur, Mexico
Vessel: U.S.S. "Albatross"
  • Holotype: Dickerson, M. C. 1919. Bull. Amer. Mus. Nat. Hist. 41 (10): 469.
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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 Sator angustus
Catalog Number: USNM 64478
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1911
Locality: Santa Cruz Island (= Isla Santa Cruz), Isla Santa Cruz, Baja California Sur, Mexico
Vessel: U.S.S. "Albatross"
  • Paratype: Dickerson, M. C. 1919. Bull. Amer. Mus. Nat. Hist. 41 (10): 469.
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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 Sator angustus
Catalog Number: USNM 64477
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1911
Locality: Santa Cruz Island (= Isla Santa Cruz), Isla Santa Cruz, Baja California Sur, Mexico
Vessel: U.S.S. "Albatross"
  • Paratype: Dickerson, M. C. 1919. Bull. Amer. Mus. Nat. Hist. 41 (10): 469.
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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 Sator angustus
Catalog Number: USNM 64476
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1911
Locality: Santa Cruz Island (= Isla Santa Cruz), Isla Santa Cruz, Baja California Sur, Mexico
Vessel: U.S.S. "Albatross"
  • Paratype: Dickerson, M. C. 1919. Bull. Amer. Mus. Nat. Hist. 41 (10): 469.
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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 Sator angustus
Catalog Number: USNM 64475
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1911
Locality: Santa Cruz Island (= Isla Santa Cruz), Isla Santa Cruz, Baja California Sur, Mexico
Vessel: U.S.S. "Albatross"
  • Paratype: Dickerson, M. C. 1919. Bull. Amer. Mus. Nat. Hist. 41 (10): 469.
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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 species seems to be ubiquitous in both islands exploiting a great variety of habitats such as rocky areas, caves along beaches, areas of beach cobble stones, sandy substrate, with animals also seen on the branches of small bushes and the limbs of cardones (cacti).

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2007

Assessor/s
Frost, D.R.

Reviewer/s
Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team)

Contributor/s

Justification
Listed as Least Concern because, although its extent of occurrence is less than 20 km², it is common, reasonably adaptable, and does not appear to be in decline. The islands are not inhabited by humans and not considered to be at particular risk from invasive species introductions or from hurricanes and other natural disasters.
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Population

Population
This lizard is abundant throughout its limited range.

Population Trend
Stable
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Threats

Major Threats
This species is not believed to be facing any major threats.
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Management

Conservation Actions

Conservation Actions
Both islands inhabited by this species are part of the Biosphere Reserve "Islas del Golfo de California". Grismer (2002) recommends that this species needs further field studies (especially with regards to the natural history and ecology) as it is very poorly known.
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Wikipedia

Sceloporus angustus

The Santa Cruz Island sator (Sceloporus angustus) is a species of phrynosomatid lizard[2][3] found on Santa Cruz Island, in the Gulf of California, Baja California, Mexico.[4] S. angustus seems to be found throughout both islands of Santa Cruz, exploiting a great variety of temperate habitats, such as rocky areas, caves along beaches, areas of beach cobblestones, and sandy substrates, with animals also seen on the branches of small bushes and the limbs of cardones (cacti).[5]

References[edit]

Further reading[edit]

  • Dickerson, M.C. (1919). Diagnoses of twenty-three new species and a new genus of lizards from Lower California. Bull: Amer. Mus. Nat. Hist. 41(10):461-477.
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