
Mojave Max coming out of his muddy burrow (Red
Rock Canyon NCA). |
General
Description: A turtle in the desert with a moderately
domed, brownish shell. This is the only "land
turtle" in the desert around Las Vegas.
Taxonomy:
Tortoise Family (Testudinidae).
Technical
Description:
A terrestrial "turtle."
Carapace moderately domed,
brownish; can exceed 14-inches long. Hind legs stumpy, round, and
elephant-like. Front legs broadly flattened with leathery skin and
large scales. Male with indented plastron; female with flat plastron. |

Tortoise in Creosote-Bursage
Flat habitat. |
Diet:
Primarily eats
annual forbs and grasses that germinate after winter rains. Also eats
cactus and other low-growing plants. Drinks standing water when
available. When food is unavailable, can stay in underground burrow for
more than 6 months.
Habitat:
Most common in Mojave
Desert Scrub habitat type, especially desert
scrub and wash habitats dominated by creosote bush. Found in valleys
and on bajadas and hills below 4,500 ft elevation. Less common
in
the lower-elevation Creosote-Bursage
Flat habitat type. An important habitat requirement is the presence of
annual wildflowers and native grasses that are eaten during spring. |

Wild tortoise (Red
Rock Canyon NCA; photo courtesy of Bill Phifer
© 2006). |
Range:
Southeastern California, southern Nevada, and southwestern Utah,
southward across western Arizona and into western Mexico.
Breeding:
Mate in the
spring, lay 1-15 eggs per clutch during spring through mid-summer,
hatchlings emerge in the fall shortly before going into hibernation.
Similar
Species: This is the only species of tortoise in
Nevada. |

Tortoise in burrow; notice the dome-shaped roof and flat floor. |
Comments:
Tortoises
dig dome-shaped burrows, usually in the sides of washes or at the base
of shrubs. If you look into burrows to try to find them, expect to also
see creatures such as rattlesnakes that use the burrows. Tortoises can
live in excess of 50 years.
Special
Remarks:
Tortoises west and north of the Colorado River are listed and protected
as Federally Threatened under the Endangered Species Act; individuals
may not be taken from the wild. Pet tortoises can be obtained from the Desert Tortoise Program. |
 |
Elephant-like
(elephantine) hind foot. |
 |
Spade-like
front foot and leg. |
 |
Concave
plastron of a male tortoise. The female plastron is flat. |
 |
Yearling
tortoise about 2-inches long (notice its size relative to dry grass
stems on the ground). |