Philochortus

Philochortus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Sauria
Infraorder: Scincomorpha
Family: Lacertidae
Subfamily: Lacertinae
Genus: Philochortus
Matschie, 1893.
Species

See text.

Philochortus spinalis and P. phillipsii

Philochortus is a genus of lacertid lizards of the family Lacertidae. Species of this genus are distributed in Egypt, Algeria, Libya, Mali, Niger, Ethiopia, Djibouti, Eritrea, Somalia, Kenya, Yemen, and Saudi Arabia. [1]

Etymology

Philochortus means grass-loving (gr. philos= friend, chortos= grass).[2] The common name of Philochortus species is therefore Grass-loving Lizards or Shield-backed Ground Lizards because of their typical back scalation.

Diagnosis

Species of Philochortus are medium to large-sized lacertids with long cylindrical tails. The unregenerated tail is up to 3.25 times longer than head and body. Eyes with movable lids. The nostril is pierced between two shields and usually bordered by the first supralabial or narrowly separated from it. The collar is well marked. The ventral plates are smooth, feebly imbricate and arranged in 6 longitudinal series. The dorsal scales are smooth or keeled. Back with 2 to 6 longitudinal series of enlarged plate-like scales along the dorsal mid-line. This is the main difference to Latastia. Femoral pores are present on the inside of the thighs, more prominent in males. Tail base in males much broader than in females.[3]

Habitat and natural history

The natural history of all species is only poorly known. Many species of Philochortus inhabit semiarid, arid or hyperarid regions, mountainous areas as well as plains from sea level up to 1500 m altitude (P. neumanni). Most species prefer sparsely vegetated, open and sandy or fairly rocky localities (P. neumanni) and can be found in Acacia-Commiphora deciduous bushland and semidesert bushland vegetation types. But P. zolii and P. neumanni can be found also in marginal unattended cultivated areas with Halfa grass and other scrub and well vegetated natural habitats.[4][5][6]

The species of Philochortus are diurnal, sun-loving active predators on insects and other arthropods, egg-laying and terrestrial but P. zolii is an avid climber. The long stiff tail is aiding in balance on vegetation. They dig burrows in the soil below clumps of grasses or small bushes.[6]

Species

The following six species are recognized as being valid.[7]

However, some authors[5][8][9] recognize a seventh species, Philochortus rudolfensis Parker, 1932 from northern Kenya. It was previously considered a junior synonym of P. intermedius. They suggest that the two taxa are unlikely to be closely related due to apparent differences in their habitat requirements.

Philochortus neumanni, P. intermedius and P. hardeggeri

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Philochortus.

References

  1. ↑ The Reptile Database. www.reptile-database.org.
  2. ↑ Schleich et al. 1996
  3. ↑ Boulenger 1921
  4. ↑ Parker 1942
  5. 1 2 Spawls et al. 2002
  6. 1 2 Baha El Din 2006
  7. ↑ "Philochortus ". The Reptile Database. www.reptile-database.org.
  8. ↑ Largen & Spawls 2006
  9. ↑ Spawls, S. & Malonza, P. 2014. Philochortus rudolfensis. The IUCN Red List of Threatened Species 2014: e.T21268095A21268221. http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T21268095A21268221.en.

Further reading

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