Anguis jaculus Linnaeus, 1758
The javelin sand boa may grow to 80 cm (31½ inches) in total length. Coloring varies greatly. Dorsally it may be grayish, tan, brownish, or reddish, with darker blotches or bars in an irregular network. It usually has a dark streak from the eye to the corner of the mouth. Ventrally it is whitish or yellowish. It is heavy-bodied and has a short blunt tail. The ventrals are very narrow, less than ⅓ of the width of the body. The rostral is large and broad with an angular horizontal edge. The eye is separated from the labials by one or two rows of small scales. There are 10-14 upper labials. The dorsal scales are in 40-50 rows, smooth anteriorly, but weakly keeled posteriorly. There are 165-200 ventrals, and 15-34 subcaudals.
- "Eryx". Integrated Taxonomic Information System. Retrieved August 16th, 2010.
- McDiarmid, Roy W., Jonathan A. Campbell, and T'Shaka A. Touré, 1999. Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1
- Arnold, E.N. and J.A. Burton. 1978. A Field Guide to the Reptiles and Amphibians of Britain and Europe. Collins. London. ISBN 0-00-219318-3.
- Boulenger, G.A. 1893. Catalogue of the Snakes in the British Museum (Natural History), Volume I. London.
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