*21. Coronella Iheringii, sp. n.

Hinder maxillary teeth not grooved. Head small, not di ­ stinct from neck; snout short; rostral moderate; seven upper labials, third and fourth entering the eye; one preocular, two postoculars; a single anterior temporal; seven inferior labials, five in contact with chin-shields; latter, hinder pair longest. Scales in 17 rows. Ventrals 172 to 178; anal divided; caudals 47 to 58. Grey-brown above; a black band on each side of the head, passing through the eye, uniting with a broad transverse black band on the occiput, covering the posterior half of the parictals; the rest of the upper surface of the head with black variegations or almost entirely black; a triangular light spot behind the eye and two roundish ones close together behind the angle of the frontal; the black band across the occiput edged with lighter posteriorly; a blackish longitudinal nuchal line, sometimes continued along the back as a vertebral series of small spots, and a roundish dark spot on each side behind the head; lower surfaces pale yellow; two black dots on the side of each ventral, and one on the side of each caudal; a few other minute dots scattered on the ventrals; gular region brown, with yellowish black-edged spots.

Three specimens; the largest measures GOO millim., into which the tail enters for 120.