Grenada Bank Boa

C. grenadensis has 37–46 dorsal scale rows, 251–278 ventral scales, 100–119 subcaudal scales, 3–9 supraocular scales and 0–4 infraloreal scales. The dorsal ground colouration of C. grenadensis has a wide range. Most individuals have a taupe ground dorsal colour, and the next most common is a yellowish one, with grey, brown and orange being less common; however, local conditions are correlated to how common each colour is, leading to different localities having different predominant colours. The ventral ground colour is a dull yellow in most individuals, with some having one closer to white. Ventral patterning varies from nearly covering the venter in a dark brown colour to being completely absent. Most individuals have a spade-shaped dorsal pattern, with sharp edges on the spades being about twice as common as rounded edges are. Patterns other than spades are somewhat more common on Grenada and its surrounding islands than in the Grenadines. An exception to the pattern prevalent on most of the body is found near the head of the snake, where its diamond-shaped instead.

C. grenadensis is endemic to the Windward Islands. It is found on the island of Grenada, its surrounding islands and in the Grenadines. It is not found on Saint Vincent, which is inhabited by the endemic Corallus cookii, a close relative of C. grenadensis.