15 km. NW of Chinajá, 1; Sayaxché, 1.
Although we found only two specimens, natives and workmen at the camp at Chinajá stated that the barba amarilla, as this snake is known locally, had been abundant when the camp had been established less than two years before our visit.
Bothrops nasutus Bocourt
12 km. NW of Chinajá, 1.
This specimen, a male having a total length of 415 mm., was found on the forest floor. The dorsum is brown with dark brown blotches separated middorsally by a narrow orange-tan stripe extending from the nape to the base of the tail. The belly is grayish tan with white flecks on the lateral edges of the ventrals. The local name is nahuyaca.
Bothrops nummifer nummifer (Rüppell)
15 km. NW of Chinajá, 2; Sayaxché, 1.
Two individuals were found on the forest floor, and one adult, having a total length of 953 mm., was removed from the stomach of a large Drymarchon corais melanurus. There is considerable variation in color and pattern. A juvenile (KU 58104), having a total length of 332 mm., has a tan dorsum with 19 interconnected dark brown, diamond-shaped, middorsal blotches, the lateral extensions of which are black; the belly is a cream-color with brown squares. An adult female (KU 55706), having a total length of 779 mm., has a dorsal coloration like the preceding specimen, except that the lateral extensions of the dorsal blotches are brown; the belly is a uniform cream-color. A second adult female (KU 55707), having a total length of 953 mm., has a brown dorsum with 21 interconnected black, diamond-shaped, middorsal blotches, the lateral extensions of which are black; the belly is a cream-color with black squares.
The local name for this species is braza de piedra.
Bothrops schlegeli schlegeli (Berthold)