Monopeltis mauricei Parker, 1935
indigenous LC

Morphological description

Loveridge (1941) re-described this species as follows: Two large shields covering the head, the anterior once and a half times as long as the posterior; a pair of occipitals; no preocular; ocular small, eye indistinguishable; rostral separating the nasals, not bordering the nostrils; nasals elongate, reaching the ocular; 3 upper labials, third largest; mental small; postmental large, pentagonal, in contact with anterior lower labial; 2 chin shields, in contact with all 3 lower labials; 289 annuli on body, 12 on tail; 70 (40 + 30) segments in a midbody annulus, the 2 median ventral segments two and a half times as broad as long; 6 pectorals; 4 anals; 1-1 preanal pores. Dentition. Premaxillary tooth 1; maxillaries 1-1; mandibulars 6-6. Measurements. Total length 132 (127 + 5) mm.

Diagnostic description

This information was extracted from Broadley et al. (1976): A small to medium-sized (220 to 365 mm. snout-vent length in adults) slender form of Monopeltis with the dorsal surface immaculate or marked by only a diffuse speckling of melanophores. Specimens have 276 to 316 body, four to seven lateral and eight to 12 (generally nine or 10) caudal annuli (up to the smoothly rounded caudal tip, that may be slightly compressed laterally), 30 to 42 dorsal plus 16 to 29 (generally 20, 22, or 24) ventral segments to a midbody annulus and two (very rarely three Or four) large first, plus three to seven (generally five) segments to the second postgenial row. The azygous head shields are discrete in some juveniles, whereas others retain short blind lateral sutures. Larger specimens lack even lateral notches for the oculars in the strongly keratinized head shield. The nasals do not contact each other or the lip; their elongate posterior processes (sometimes broken off to form postnasals) always contact the quadrangular ocular. There are four to six parietals. The pectoral region is long and slender. The medial pair of the six slender shields (which correspond dorsally to four or five body annuli) is the longest and extends anteriorly so that the narrowed last prepectoral annulus makes a short radius curve round it. The lateral sulci are often poorly expressed and dorsal and ventral ones are absent. There are diagonal folding lines on the dorsum. Many specimens have no supernumerary dorsal half-annuli; the maximum number is 16, but there may be a reduction of up to seven half-annuli. The dorsal interannular sutures Cross the trunk at right angles to its long axis. Two large precloacal pores lie on the terminal segments of the first lateral annulus, which are in contact with the large median pair of precloacal shields. No autotomy occurs.

Type notes

Type locality: “Monjalatsela, near Ghanzi, Bechuanaland” Holotype: BMNH 1933.9.9.14, female

Taxonomic notes

The information has been extracted from Tolley et al. (2023): Monopeltis mauricei has been treated as a subspecies of M. sphenorhynchus (Broadley et al., 1976; Branch, 1998) but was elevated to specific status based on morphology (Broadley 2001). These two species were thought to be allopatric, however a new record shows that M. sphenorhynchus occurs deep within the range of M. mauricei (Bates et al., 2010), and there is some overlap between the number of body annuli between these two species. The specific status of these species should be re-evaluated within a phylogenetic framework.

Global distribution

Botswana, Namibia, South Africa, Zambia, Zimbabwe.

SA distribution

The species occurs in the Kalahari Desert, extending into southwestern Zambia and northwestern Zimbabwe. In South Africa, it occurs in areas north of the Orange River (Broadley et al., 1976; Bates et al., 2010).

Movement

Adaptations for underground locomotion include a robust skull to plough through the Earth, an elongate body and reduced limbs to move through tunnels and scales arranged in rings allowing amphisbaenians to use an earthworm-style, accordion-like movement to crawl (Longrich et al., 2015).

Trophic level

Carnivore - Insectivore (insect-eating)

Trophic strategy

The species is insectivorous, feeding on small insects and their larvae, particularly termites (Branch, 1998).

Reproduction

No data.

Biome

Grassland, Savanna, Shrubland (Tolley et al., 2023).

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: Data partners records: DNA:

Residence status

Occurrence in African countries and South African provinces. Residence status indicates if a taxon is indigenous, endemic, or alien in a specific region. This data is based on specimen records and literature.

FSA

SA

BOT

NAM

ESW

LES

WC

EC

NC

FS

GA

KZN

LP

MP

NW

Absent

Indigenous

Endemic

Naturalised

Invasive

Names and Sources

Common Name Language
Maurice se Wurmakkedis, Maurice’s Spade-snouted Worm Lizard -Maurice's Worm Lizard En
Maurices Wormlizard En
Maurices Worm Lizard En

Classification

KINGDOM Animalia

PHYLUM Chordata

SPECIES mauricei

No results found for Monopeltis mauricei Parker, 1935

Uses

No data.

0 results for Monopeltis mauricei Parker, 1935

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Year

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Animal occurrence records per dataset

Animal occurrence records per year

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: Data partners records: DNA:

1935

JOURNAL ARTICLE

A new species of amphisbaenid lizard from Bechuanaland

Parker, Hampton. 1935. A new species of amphisbaenid lizard from Bechuanaland Vol. 15. Annals and Magazine of Natural History pp.582-583.

1976

JOURNAL ARTICLE

Studies on Amphisbaenians (Amphisbaenia, Reptilia) 6. The Genera Monopeltis and Dalophia in Southern Africa

Broadley, D., Gans, C., Visser, J.. 1976. Studies on Amphisbaenians (Amphisbaenia, Reptilia) 6. The Genera Monopeltis and Dalophia in Southern Africa Vol. 157. New York. pp.311-486.

2005

JOURNAL ARTICLE

Checklist and Bibliography of the Amphisbaenia Of the World

Gans, C.. 2005. Checklist and Bibliography of the Amphisbaenia Of the World Vol. 289. Bulletin of the American Museum of Natural History pp.1-130.

2001

JOURNAL ARTICLE

Geographical Distribution. Monopeltis sphenorhynchus

Broadley, D.. 2001. Geographical Distribution. Monopeltis sphenorhynchus Vol. 32. pp.23-24.

1998

BOOK

Field Guide to Snakes and other Reptiles of Southern Africa

Branch, B.. 1998. Field Guide to Snakes and other Reptiles of Southern Africa. Cape Town. Struik Publishers.

2010

JOURNAL ARTICLE

New amphisbaenian records for the Northern Cape, South Africa

Bates, M., Pietersen, D., Measey, G.. 2010. New amphisbaenian records for the Northern Cape, South Africa Vol. 26. Bloemfontein. Navorsinge van die Nasionale Museum Bloemfontein pp.61–72.

2015

JOURNAL ARTICLE

Biogeography of worm lizards (Amphisbaenia) driven by end-Cretaceous mass extinction

Longrich, N., Pyron, R., Pisani, D., Gauthier, J., Vinter, J.. 2015. Biogeography of worm lizards (Amphisbaenia) driven by end-Cretaceous mass extinction Vol. 282 pp.20143034.

2023

BOOK

Conservation status of the reptiles of South Africa, Eswatini and Lesotho

Alexander, G., Burger, M., Tolley, K., Pietersen, D., Conradie, W., Weeber, J.. 2023. Conservation status of the reptiles of South Africa, Eswatini and Lesotho Vol. Suricata 10. Pretoria. South African National Biodiversity Institute.

1941

JOURNAL ARTICLE

Revision of the African lizards of the family Amphisbaenidae

Loveridge, A.. 1941. Revision of the African lizards of the family Amphisbaenidae Vol. 87. Boston. Harvard University pp.353-451.

Status

Status and criteria

LC

Assessor(s)

John Measey

Reviewer(s)

Graham Alexander