Fowlea schnurrenbergeri
Fowlea schnurrenbergeri or Xenochrophis schnurrenbergeri ''' is a species of Non venomous snake in the family Colubridae. It is found in Nepal, Pakistan, India and Bangladesh.
Description
Bar-necked Keelback is a species which is very close to Checkered Keelback in external morphology. Unlike Checkered Keelback Checks on dorsal surface and 2) Cross-bar on neck which is replaced by inverted V in its closest species Checkered Keelback.Dorsal body-
Body stout with keeled scales on top and smoother on side rows. Dorsal color olive brown with 6 rows of boxes or bars which gradually become faint of posterior body. These bars start from nape in the form of connected or disconnected straight bar.
Ventral body-
Belly usually yellowish-white or white with black edge on the side of each ventral scale. Subcaudal scales paired in a zig-zag manner, their color is similar to ventral scales but sometimes can be darker than ventrals.
Head-
Head triangular with smooth and shiny scales; broader than neck. Color olive brown with two black subocular streaks; anterior below and posterior reaches to last few supralabials. Eyes have rounded pupil.
Tail-
Tail also covered with highly keeled scales. Normal as typical range and ends with pointed tip. Color almost same like rest of the dorsal body but usually without any dark markings.
Diagnostic Keys
Head:Intranasals distinctly narrowed anteriorly; supralabial 9-10; usually 4th & 5th in contact with eyes; preocular 1; single well defined loreal; postocular 2-3; sometimes a single subocular; temporal 2+2 or 2+3.
Dorsal:
Keeled scales in 19:19:17 rows.
Ventral:
132-139, 141-152 ; anal divided.
Sub Caudal:
71-80, 61-70 ; paired.
Preocular: 1; Postocular: 2-3; Supralabials: 9-10 ; Infralabials: 8-10; Anterior temporals: 2; Posterior temporals: 2-3; Dorsal scale row formula: 19:19:17. Ventrals: 136-147; Subcaudals: 64-79. Dorsum olive brown with 5-6 rows of black box like pattern. A straight dark crossbar present on nape. Venter white.