| Diagnosis | DIAGNOSIS. “A Coniophanes with 23-25 dorsal scale rows, differing from piceivittis in having a narrower lateral dark stripe, 0.5-1.5 rows wide, which gradually becomes lighter toward the ventrals, and in having a higher number of caudals.” (Bailey 1937)
DESCRIPTION OF HOLOTYPE. “Dorsal scale rows 23-25-19, reducing by loss of the paravertebral rows opposite ventrals 101, 116, and 141 respectively ; keeled at the anal region, lateral rows most strongly so, and with a further tendency toward keel ing where reduction takes place. Ventrals, 170; subcaudals, 101 pairs. Upper labials, 8, 4 and 5 in eye; lower labials, 10, 6 in contact with chin shields; oculars, 2-2, including a small subpreocular; temporals, 1-2-3; nasal semidivided; loreal broader than high; frontal once and a half as long as broad. Head brown, labials shaded with light brown. A light stripe from snout through the top of the eye extends backward to a point slightly behind the parietals (less distinct anterior to eye). This stripe continues as a dorsolateral light line 14 scales wide after interruption for the space of about 1 scale on the neck. A broad dorsal black band is 5% scales wide at midbody. The half row (lower half of eighth row) below the dorsolateral light lines is black like the dorsal band, becoming gradually lighter ventrally. Chin and throat dotted with dark, ventral surface immaculate yellow. Hemipenis with forked suleus, longitudinal laminae basally followed by numerous small spines, and a slightly bifurcate capitate tip. Maxillary teeth about 9, followed by a gap and 2 enlarged grooved fangs. Body, 372; tail, 175.” (Bailey 1937)
VARIATIONS. “The 2 specimens of piceivittis recorded by Boulenger? seem to be referable to schmidti, according to data generously taken for me recently by Roger Conant. The counts for these specimens are included in the statement of variation, which may be summarized as follows: dorsals, 21-23-19 to 25 19 ; ventrals, 158-174; caudals, male, 91-115, female, 87-103; width of lateral black stripe, ½-14 scales; tail length/body length, male, 42.6-51.3 per cent, female, 36.3-46.7 per cent. The lowest ventral count for each sex is from a specimen from Petén, and the Petén female has the lowest caudal count. The tail of the Petén male is incomplete.” (Bailey 1937) |
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