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Photos by J.D. Willson unless otherwise noted. Description: Brown snakes are small - 6-13 in. (17-33 cm) - snakes that are usually brown, but can be yellowish, reddish, or grayish-brown. They usually have two rows of dark spots, sometimes linked, along the back and a dark streak down the side of the head.The belly is light brown to white.A series of tiny black dots are often present along each side of the belly. The young have a yellowish collar going down the neck with a less evident dorsal pattern. This snake looks similar to earth snakes (Virginia sp.) but those species lack spots on the back and head.escription: Brown snakes are small - 6-13 in. (17-33 cm) - snakes that are usually brown, but can be yellowish, reddish, or grayish-brown.
Columbian Rainbow boas are usually beige to brownish red with dark markings, with the colour of the snake generally becoming more subdued with age. Size: Columbian Rainbow boas are a small sized boa that rarely grow over 5ft. The average for a male is around 4ft, while females tend to reach lengths of 4.5- 5ft. Life Span: 20 years is average for a Columbian Rainbow Boa in captivity, but it is not uncommon for them to reach 25 years with appropriate care.