Checkerboard worm lizard

Checkerboard worm lizard
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Trogonophidae
Genus: Trogonophis
Species: T. wiegmanni
Binomial name
Trogonophis wiegmanni
Kaup, 1830[1]

The checkerboard worm lizard, Trogonophis wiegmanni, is a species of reptile in the family Trogonophidae. The species is monotypic within the genus Trogonophis,[2] and is endemic to North Africa in Algeria, Morocco, and Tunisia. Its natural habitats are temperate forests, Mediterranean-type shrubby vegetation, temperate grassland, sandy shores, arable land, and pastureland. It is threatened by habitat loss.

Description

There are two subspecies, which can be distinguished by their coloration. Trogonophis w. wiegmanni has a pale yellow ground color while T. w. elegans has a gray-white or light pink ground color.

The head is rounded and slightly compressed dorso-ventrally. The snout is slightly protruding. Two pairs of cephalic shields are present. The nostrils open forward. External ears are absent. The skull is elongate compared to other Trogonophidae.

The body is wormlike: legless, elongate, cylindrical, and annulated. There are sunken lateral lines. The short conical tail lacks autotomy. The body is short and stout relative to other legless lizards. Both sexes lack pre-anal pores.

Habitat

T. wiegmanni can found in areas with abundant leaf litter, sandy soil[3] and moist soil that is covered with stones and other ground cover. It can also be found near roadsides, in traditionally cultivated areas, in oak forest and oak-juniper forests, in sandy patches with no vegetation and in steppe habitat.[4]

T. wiegmanni has a tolerance for a broad range of habitats such as; temperate forest, shrub land, temperate grassland, artificial/terrestrial arable Land, and artificial/terrestrial pastureland.[4]

Etymology

The specific name, wiegmanni, is in honor of German herpetologist Arend Friedrich August Wiegmann.[5]

Common names

Trogonophis wiegmanni is commonly known in English as "Wiegmann's worm lizard"[5] or the "checkerboard worm lizard", in French as "Trogonophis ", and in German as "Schachbrett-Doppelschleiche "[1] or "Wiegmanns Spitzschwanz Doppelschleiche ".

Geographic range

T. wiegmanni is native to the countries of northern Algeria, western Morocco, the Chafarinas Islands [Spain], and northwestern Tunisia.[4]

This species can be found anywhere between sea level and 1,900 m (6,200 ft) above it.[4]


Ecology

Behavior

T. wiegmanni can be found mostly under rocks/stones in their specific habitats sometimes in pairs. Individuals of the same sex in this species are never found together under the same rock indicating intrasexual intolerance. Females benefit from male presence through enhanced vigilance or reduced harassment by other males within this species.[3]

Feeding

Trogonophis wiegmanni consumes a variety of insects and other soil invertebrates.

References

  1. 1 2 Trogonophis wiegmanni at the Reptile Database.
  2. ↑ Trogonophis at the Reptile Database.
  3. 1 2 Martín J, Polo-Cavia N, Gonzalo A, Lopez P, Civantos E (2011). "Social aggregation behaviour in the North African amphisbaenian Trogonophis wiegmanni ". African Journal of Herpetology. 60: 171–176. doi:10.1080/21564574.2011.566285.
  4. 1 2 3 4 "Trogonophis wiegmanni ". at IUCN (International Union for Conservation of Nature) Redlist 2017-1.
  5. 1 2 Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Trogonophis wieganni, p. 285).

Further reading


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