Mole Skink

Mole Skink
Missing image
Peninsula_Mole_Skink.jpg
Peninsula Mole Skink


Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Order:Squamata
Suborder:Sauria
Family:Scincidae
Genus:Eumeces
Species:E. egregius
Binomial name
Eumeces egregius
Baird, 1859

Mole Skinks (Eumeces egregius) are small lizards living in Florida.

Taxonomy

The species is further subdivided in five subspecies:

  • Florida Keys Mole Skink, E.e. egregius Baird 1859: occurs only on some of the Florida Keys.
  • Cedar Key Mole Skink, E.e. insularis Mount 1965: occurs only on three islands at Cedar Key.
  • Bluetail Mole Skink, E.e. lividus Mount 1965: occurs only in interior central Florida; shares habitat with the Sand Skink.
  • Peninsula Mole Skink, E.e. onocrepis Cope 1871.
  • Northern Mole Skink, E.e. similis McConkey 1957.

The species was first described by Baird in 1859 as Plistodon egregius. In 1871, P. onocrepis was described by Cope. In 1875, the two species were reassigned to the genus Eumeces. In 1935, two subspecies were defined, E.e. egregius and E.e. onocrepis, and in 1957, E.e. similis was separated from E.e. egregius.

Status

The first three subspecies listed above are protected, and the Bluetail Mole Skink is classified as an endangered species since 1987. The major threats to all three subspecies are habitat destruction due to residential, commercial, and agricultural development and overcollection by herpetological enthusiasts. The remaining two subspecies are rather common. The Northern Mole Skink also occurs in southern Alabama and Georgia.

Reproduction

Mole Skinks reach sexual maturity after one year. They mate in winter; the female lays three to seven eggs in spring in a shallow nest cavity less than 30 cm below the surface. The eggs incubate for 31 to 51 days, during which time the female tends the nest.

The Bluetail Mole Skink

Missing image
Bluetail_Mole_Skink_Habitats.png
Bluetail Mole Skink distribution


Bluetail Mole Skink distribution

The Bluetail Mole Skink is a small, shiny, cylindrical lizard of a brownish color. Juveniles usually have a blue tail which makes up slightly more than half of the animal's length. Regenerated tails and the tails of older individuals are typically pinkish. The legs are somewhat reduced in size and are used only during surface locomotion, not when the animal "swims" through the sand (Christman 1992). During the breeding season, males develop a colorful orange pattern on their sides.

The Bluetail Mole Skink grows to 9 to 15 cm (3 to 6 inches). It shares habitat with the Sand Skink, which is also endangered, but does not compete with it: whereas the Sand Skink feeds underground, the Bluetail Mole Skink hunts on the surface. Like other mole skinks, it feeds primarily on cockroaches, spiders, and crickets.

The Bluetail Mole Skink is an endangered species.

External links

Selected literature

  • Christman, S.P. (1992): Endangered: blue-tailed mole skink, Eumeces egregius lividus (Mount). Pages 117-122 in P.E. Moler, ed. Rare and endangered biota of Florida. University Press of Florida, Gainesville, Florida.
  • Mount, R.H. (1965): Variation and systematics of the scincoid lizard Eumeces egregius (Baird). Bulletin of the Florida State Museum 9:183-213.
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