The
dorsum of
U. woodmasoni is blackish or dark violet, with a transverse series of small round yellow spots or ocelli. There is a lateral series of large yellow spots which may be confluent into a stripe. The venter is blackish or dark violet. Adults may attain a total length (including tail) of 28 cm (11 inches). The smooth
dorsal scales are arranged in 19 rows at midbody, as well as behind the head. The
ventrals number 163-178; the subcaudals number 6-11. The snout is pointed. The portion of the
rostral visible from above is longer than its distance from the
frontal, in some specimens separating the
nasals. The frontal is slightly longer than broad. The eye is small, its diameter slightly less than ½ the length of the ocular shield. The diameter of the body goes 23 to 30 times into the total length. The ventrals are about twice as large as the contiguous scales. The tail is rounded, and the dorsal scales of the tail are strongly pluricarinate. The terminal scute has two small points. ==Reproduction==