California Reptiles & Amphibians

Phyllodactylus nocticolus - Peninsular Leaf-toed Gecko



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Range in California: Red

Dot-locality Range Map




Night-active adult, San Diego County
Adult (night-active) San Diego County
Adult, Baja California (found hiding under rock during daytime)
Adult, San Diego County
© Jason Jones
Night-active adult, San Diego County
Night-active juvenile, San Diego County
Toes
Skin, showing tubercles
Habitat, San Diego County
Habitat, San Diego County
Habitat, San Diego County

Habitat, Imperial County
   
 
Habitat, San Diego County
 
Description
Size
1 3/5 - 2 1/2 inches long from snout to vent (4.1 - 6.3 cm). (Stebbins 2003)
Appearance
A medium-sized gecko with large eyes without movable eyelids and vertical pupils. Expanded toe pads that resemble leaves give this gecko its common name. The toes have two large flat scales at their tips with a claw inbetween them. Scales are small and granular with scattered enlarged keeled tuburcles. Tail is easily detached. Males have enlarged preanal pores.

Color is a translucent gray, brown, or pink usually with dark brown blotches on the back. The underside is pale and unmarked.
Behavior & Natural History
Nocturnal, emerging shortly after dark. Most active from March to October. Probably remains inactive during cold of winter. An excellent climber, rarely found away from rocks. Squeaks when alarmed or captured. May leap into the air to avoid capture.
Diet
Stalks its prey of small invertebrates, which include termites, spiders, moths, flies, and ants. Sometimes leaves rocks to forage on the ground, on trees, and buildings.
Reproduction
Breeds in April and May, laying several clutches of 1 - 2 eggs from May to July which hatch from June to August.
Eggs are laid in crevices or under exfoliating bark. (Grismer 2002)
Range
Along the lower desert slopes of the peninsular ranges from north of Palm Springs in Riverside County south throughout much of Baja California.
Habitat
Lives among rocks in desert scrub and broken chaparral, hiding in cracks and crevices and under exfoliating slabs. Often found in canyons with massive boulders especially near springs and streams, but also found in rocky, non-riparian areas. Occasionally found under plant material.
Sea level to 2,000 ft. (610 m). (Stebbins 2003)
Taxonomic Notes
Phyllodactylus taxonomy has been controversial. Many species and subspecies have been recognized from Mexico, including island endemics. Only one, P. nocticolus occurs in the US. In 1993 P. nocticolus was a species distinct from P. xanti (Flores-Villela 1993 Carnegie Museum of Natural History Special Publication 17) This taxonomy has not been recognized by everyone, and this gecko is still commonly labeled as P. xanti. (2007)
Conservation Issues  (Conservation Status)
Protected from collection in California. Rock outcrops it inhabits are also protected from destruction.

Taxonomy
Family Gekkonidae Geckos
Genus Phyllodactylus Leaf-toed Geckos
Species


nocticolus Peninsula Leaf-toed Gecko
Original Description
Phyllodactylus nocticolus - Dixon, 1964 - New Mexico State Univ. Sci. Bull, Vol. 64, No. 1, p. 55

from Original Description Citations for the Reptiles and Amphibians of North America © Ellin Beltz

Meaning of the Scientific Name
Phyllodactylus - Greek - phyllon - leaf and daktylos - finger or digit - refers to the leaf like terminal subdigital lamellae
nocticolus
- Latin - resident of the night - refers to this lizard's nocturnal habits

from Scientific and Common Names of the Reptiles and Amphibians of North America - Explained © Ellin Beltz

Alternate Names
Phyllodactylus xanti nocticolus - Leaf-toed Gecko
Phyllodactylus nocticolus - Peninsula Leaf-toed Gecko

Related or Similar California Lizards
Coleonyx variegatus variegatus - Desert Banded Gecko
Hemidactylus turcicus - Mediterranean House Gecko
Coleonyx switaki switaki - Peninsular Banded Gecko

More Information and References
Natureserve Explorer

California Dept. of Fish and Game

Stebbins, Robert C. A Field Guide to Western Reptiles and Amphibians. 3rd Edition. Houghton Mifflin Company, 2003.

Behler, John L., & F. Wayne King. The Audubon Society Field Guide to North American Reptiles and Amphibians. Alfred A. Knopf, 1992.

Grismer, L. Lee. Amphibians and Reptiles of Baja California, Including Its Pacific Islands and the Islands in the Sea of Cortés. The University of California Press, 2002.

McPeak, Ron H. Amphibians and Reptiles of Baja California. Sea Challengers, 2000.

Lemm, Jeffrey. Field Guide to Amphibians and Reptiles of the San Diego Region (California Natural History Guides). University of California Press, 2006.

Conservation Status

The following status listings come from the Special Animals List which is published several times each year by the California Department of Fish and Game.

This lizard is on the California Department of Fish and Game list of reptiles that cannot be taken with a valid license, but it is not included on the Special Animals List, indicating that there are no significant conservation concerns for it in California. This seems to be a mistake, since the state is clearly protecting it for some reason. Natureserve lists this species as "Secure" but this included populations in Baja California.


Organization
Status Listing
U.S. Endangered Species Act (ESA)
California Endangered Species Act (CESA)
California Department of Fish and Game
Bureau of Land Management
USDA Forest Service
Natureserve Global Conservation Status Ranks
World Conservation Union - IUCN Red List





 

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