| Atractaspis |
A small, unusual group of advanced snakes, often called mole vipers or stilleto snakes. Recently, molecular evidence has shown that this family includes many genera formerly classed in other families, on the basis of fang type. This odd family of snakes seems to include fangless (aglyphous), rear-fanged (opisthoglyphous), fixed-fanged (proteroglyphous), and viper-like (solenoglyphous) species. ...
출처: en.wikipedia.org/wiki/Atractaspis
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