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Western Ratsnake vs. Eastern Milksnake

Adult Western Ratsnakes are shiny black and cannot be confused. Young ones are grey with dark brown blotches, much like a Milksnake. The Milksnake has smooth, glossy scales, saddles edged in black, a pale Y or V on the nape and a black-and-white checkered belly; the young ratsnake has weakly keeled scales, a dark band across the head in front of the eyes, and no nape mark.

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Western Ratsnake

Pantherophis obsoletus

Eastern Milksnake

Lampropeltis triangulum
Western Ratsnake vs. Eastern Milksnake: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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