Bitis
genus of venomous vipers native to Africa and the southern Arabian Peninsula
Bitis is a genus of vipers found in Africa and the southern Arabian Peninsula. It includes the largest and the smallest vipers in the world. Members are known for their characteristic threat displays that involve inflating and deflating their bodies while hissing and puffing loudly. The type species for this genus is B. arietans, which is also the most widely distributed viper in Africa. Currently, 18 species are recognized.
Members of the genus are commonly known as African adders, African vipers, or puff adders.
Description
Size variation within this genus is extreme, ranging from the very small B. schneideri, which grows to a maximum of 28 cm (11 in) and is perhaps the world's smallest viperid, to the very large B. gabonica, which can attain a length over 2 m (6.6 ft) and is the heaviest viper in the world.
All have a wide, triangular head with a rounded snout, distinct from the neck, and covered in small, keeled, imbricated scales. The canthus is also distinct. A number of species have enlarged rostral or supraorbital scales that resemble horns.
“Bitis” enters the record as genus of venomous vipers native to Africa and the southern Arabian Peninsula. Crown Archives preserves that source wording while asking what Bitis, genus and venomous can confirm, complicate or overturn.
Why this record matters
“Bitis” is worth following because a concise public description often conceals a longer documentary argument. Here, Bitis, genus and venomous provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Aug 30, 2026. The linked authority identifier is Q574527. None of the 0 selected statements returned an explicit reference.
A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Bitis” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.