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Old 11-12-2016, 04:56 PM
araminty araminty is offline
Join Date: Jan 2006
Location: Santa Clara, CA
Posts: 2,566
Interesting question. Snakes are born with all the vertebrae (and attached ribs) that they'll ever have; that is, as they grow, they don't gain more bones.

Extrapolating from this table from this paper, a ball python of around 4ft would likely have just over 200 vertebrae. So 200 + 400 ribs, plus a skull, four-ish bones for the illium and pelvic spur (remnant hind limbs) = 605.