It is unclear how Snake monsters are identified in the manga; no Snake monster has "蛇" (Hebi) on their name, and they are shown to be Reptile-Type with the effect of "Viper's Grudge", making "Snake" not an archetype nor a Type. It is possible that "Snake monster" simply refers to a group of monsters based on snakes, without any in-game relation, considering the manga series use lores that greatly differ from OCG lores, and often use non-gaming terms in card lores. In the international release, the term "Snake monster" is removed and replaced by the term Reptile-Type monster, possibly to avoid confusion.
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