Sheltopusik

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Sheltopusik

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Anguidae
Genus: Pseudopus
Species:
P. apodus
Binomial name
Pseudopus apodus
(Pallas, 1775)
Synonyms[2]
Two sheltopusiks fighting (video).
Close up of a sheltopusik in a zoo in Japan (video).

The sheltopusik

glass lizard found from Southern Europe to Central Asia
.

Sheltopusik at the Children's Aquarium at Fair Park

Etymology

Pseudopus apodus comes from Greek ψευδοποδος άποδος, literally meaning "fake-legged" or without legs.

The common name "sheltopusik" comes from Russian желтопузик (zheltopuzik), which translates most directly as "yellow-bellied".[5]

Taxonomy

The sheltopusik was previously included in the genus Ophisaurus, but has since been placed in its own genus Pseudopus. It was originally described in 1775 by Peter Simon Pallas as Lacerta apoda.[6]

There are three subspecies:[7][8]

Despite only being described in 2021, P. a. levantinus is the largest and most genetically diverse of the subspecies, indicating an older and more complex evolutionary history compared to its sister subspecies.[8]

Description

The sheltopusik can reach a length of 135 cm (4.43 ft). It is tan colored, paler on the ventral surface and the head, with a ring-like/segmented appearance that makes it look like a large earthworm with a distinctive fold of skin down each side called a lateral groove. Small (2-mm) rear legs are sometimes visible near the cloaca. Though the legs are barely discernible, the sheltopusik can be quickly distinguished from a snake by its ears, eyelids, and ventral scales.

Habitat and behaviour

P. apodus inhabits open country, such as short grassland or sparsely wooded hills. It consumes

slugs
appear to be its favorite prey, which may explain why it is particularly active in wet weather, although it prefers a dry habitat. Breaking through the shells of snails is an especially easy task due to their teeth and jaw structure.

Defensive behaviour

Due to its size, the sheltopusik tends to respond to harassment by hissing, biting, and musking. It is less likely to drop off its tail than some other species that display caudal

glass lizard
" (or "glass snake"). The released tail may break into pieces, leading to the myth that the lizard can shatter like glass and reassemble itself later. In reality, if the tail is lost, it grows back slowly, but is shorter and darker. The replacement tail may grow back to full length after an extended period of time.

Sheltopusik
Dolichophis jugularis preying on a sheltopusik

In captivity

Sheltopusiks are frequently available in the exotic pet trade, though rarely captive-bred. They do not typically tolerate a large amount of handling, but they adapt to captivity well, feeding on

meal worms, small mice, eggs, snails, or pieces of meat. They are even known to accept these meals from a keeper's tweezers
, or even from their hands once they become used to captivity. However, sheltopusiks do get excited around food and have surprisingly powerful jaws. They make hardy captives, capable of living up to 50 years.

Reproduction

About 10 weeks after mating, the female P. apodus lays about eight eggs, which she hides under bark or a stone, and often guards them. The young hatch after 45 to 55 days. They are typically about 15 cm (5.9 in) long and usually start to eat after four days.

Relationship with humans

Remains of the Levant subspecies (P. a. levantinus) are known from

Natufian sites in Israel, suggesting that it was eaten by the local population at the time.[8][9]

References

  1. doi:10.2305/IUCN.UK.2021-3.RLTS.T157263A745759.en
    . Retrieved 20 February 2022.
  2. ^ "Pseudopus apodus ". The Reptile Database. www.reptile-database.org.
  3. ^ Also spelled scheltopusik, sheltopusick, scheltopusick, sheltopusic, or scheltopusic.
  4. ISBN 978-1-4214-0135-5
    . (Pseudopus apodus, p. 199).
  5. ISBN 978-5-98092-007-4
    .
  6. ^ Lacerta apoda. Peter Simon Pallas. Published: 1775.
  7. ^ "Pseudopus apodus". The Reptile Database. Retrieved 2022-08-03.
  8. ^
    S2CID 233422513
    .
  9. ^ Schuster, Ruth. "Lizards Eaten by Prehistoric People in Today's Israel Were Unknown Subspecies". Haaretz.

External links

Further reading

  • Arnold EN, Burton JA (1978). A Field Guide to the Reptiles and Amphibians of Britain and Europe. London: Collins. 272 pp. + Plates 1-40. (Ophisaurus apodus, pp. 175, 178 + Plate 33, figures 1a-1b + Map 94).
  • Boulenger GA (1885). Catalogue of the Lizards in the British Museum Natural History). Second Edition. Volume II. ... Anguidæ ... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 497 pp. + Plates I-XXIV. (Ophisaurus apus, new combination, pp. 280–281).
  • Pallas PS (1775). "Lacerta apoda, descripta ". Novi Comentarii Academiae Scientiarum Imperialis Petropolitanae 19: 435-454 + Plates IX-X. (Lacerta apoda, new species). (in Latin).
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