About Pseudagkistrodon rudis (Boulenger, 1906)
Pseudagkistrodon rudis, a species of snake, appears to mimic vipers. When it takes a defensive position, its head forms a triangular shape. This species reaches a maximum total length of 120 cm (47 in), with the tail included in this measurement. Its head is broad and clearly distinct from the neck. The dorsal side of the body ranges from brown to grey-brown, and may sometimes have a bronze tint. The dorsum is marked by interrupted dark markings that vary in size, arrangement, and pigment intensity. Pseudagkistrodon rudis is a common species that lives in montane meadows, riparian areas along brooks, valleys, roadsides, shrubs, and rock piles. It occurs at altitudes between 600 m and 2,650 m (1,970–8,690 ft) above sea level. For reproduction, female P. rudis give birth to litters of 12 to 27 young during late summer and autumn. Newborn young measure 13–20 cm (5.1–7.9 in) in total length.
