Afrotyphlops schlegelii

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Afrotyphlops schlegelii
Limpopo, South Africa
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Typhlopidae
Genus: Afrotyphlops
Species:
A. schlegelii
Binomial name
Afrotyphlops schlegelii
(Bianconi, 1847)
Synonyms[1]
  • Typhylops schlegelii
    Bianconi, 1847
  • Onychocephalus schlegelii
    — W. Peters, 1860
  • Typhlops schlegelii
    — Boulenger, 1893
  • Rhinotyphlops schlegelii
    — Roux-Estève, 1974
  • Megatyphlops schlegelii
    — Broadley & Wallach, 2009
  • Afrotyphlops schlegelii
    — Hedges et al., 2014

Afrotyphlops schlegelii, commonly known as Schlegel's beaked blind snake[2] or Schlegel's giant blind snake,[1] is a species of snake in the family Typhlopidae.[3][4][5] The species is endemic to eastern and southern Africa, and bears the distinction of being the world's largest typhlopid.[2] It is harmless to humans and lives exclusively on a diet of termites.

Etymology

The specific name, schlegelii, is in honor of German herpetologist Hermann Schlegel.[1][6]

Geographic range

A. schlegelii is found in Angola, Botswana, the Democratic Republic of the Congo, Eswatini, Ethiopia, Kenya, Malawi, southern Mozambique, northern Namibia, Somalia, South Africa, southern Sudan, Tanzania, northern Uganda, Zambia, and Zimbabwe.[1]

Description

Three distinct

color phases
of A. schlegelii are found: uniform, blotched, or striped.

  • Uniform phase specimens are black to brown dorsally, straw-colored ventrally.
  • Blotched phase individuals have black to dark brown irregular blotches dorsally, and are yellow-green to yellow ventrally and on the sides.
  • The striped phase results from each scale being edged with black. These black lines merge with age.

The maximum recorded

snout-vent length
(SVL) is 95 cm (37+3⁄8 in).

The scales are arranged in 30-44 rows around the body. There are more than 300 scales in the vertebral row (maximum 623).[2]

The snout is very prominent, with a sharp horizontal cutting edge, below which are located the nostrils. The

nasal is semidivided, the suture proceeding from the first upper labial. A preocular is present, narrower than the nasal or the ocular, in contact with the second and third upper labials. The eyes distinct, located below the suture between the preocular and the ocular. The diameter of the body goes 25 to 30 times in the total length. The tail is broader than long, ending in a spine.[7]

Habitat

Afrotyphlops schlegelii is found in a variety of habitats, from sandveld to coastal bush.[2]

Behavior

A. schlegelii is fossorial, and very large individuals are found deep underground.[2]

Reproduction

A. schlegelii is

oviparous. A female usually lays 12-40 eggs, but very large individuals may lay as many as 60. The eggs, which are laid in late spring or summer, measure 20–22 mm long by 10-12mm wide (3/4-7/8 inch x 3/8-7/16 inch). The eggs hatch in 5–6 weeks.[2]

Infraspecific taxa

There are two subspecies:[1]

  • Afrotyphlops schlegelii schlegelii (W. Peters, 1860)
  • Afrotyphlops schlegelii petersii (Bocage, 1873)

Note: A

trinomial authority
in parentheses indicates that the subspecies was originally described in a genus other than Afrotyphlops.

References

  1. ^ a b c d e Afrotyphlops schlegelii at the Reptarium.cz Reptile Database. Accessed 4 January 2015.
  2. ^
    ISBN 0-88359-042-5
    . (Rhinotyphlops schlegelii, p. 54 + Plate 39).
  3. PMID 23627680
    .
  4. ISBN 1-893777-01-4
    (volume).
  5. ^ "Megatyphlops schlegelii". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 22 December 2013.
  6. ISBN 978-1-4214-0135-5
    . (Rhinotyphlops schlegelii, p. 235).
  7. ^ Boulenger GA (1893). Catalogue of the Snakes in the British Museum (Natural History)., Volume I., Containing the Families Typhlopidæ ... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 448 pp. + Plates I-XXVIII. (Typhlops schlegelii, pp. 44–45).

Further reading

  • Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna
    . (Typhlops schlegelii, new species, p. 183). (in Latin).
  • doi:10.11646/zootaxa.2255.1.1
    .
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