------------+----------+-----------+------------+---------+---------- Number |Number |Per cent |Number |Number |Per cent of |of |of |of |of |of Supralabials|specimens |occurrence |infralabials|specimens|occurrence ------------+----------+-----------+------------+---------+---------- 6-6 | 221 | 90.2 | 5-5 | 5 | 2.0 6-7 | 10 | 4.1 | 5-6 | 4 | 1.6 7-6 | 10 | 4.1 | 6-5 | 5 | 2.0 7-7 | 4 | 1.6 | 6-6 | 229 | 93.1 | | | 6-7 | 1 | 0.4 | | | 7-6 | 2 | 0.8 ------------+----------+-----------+------------+---------+---------- In three of the four specimens with 7-7 supralabials, the type of addition is the same on each side, whereas the other specimen has a different type of addition on each side. Of the 23 examples for which the type of addition is known, 19 (82.6%) have the increase in number on the posterior half of the series. In one specimen the third supralabial on the right is diagonally divided and the resulting upper part does not contact the edge of the lip; hence the specimen has 6-6 supralabials. Infralabials The infralabials are five, six (usually), or seven on a side (Table 1). When five infralabials are present on either one or both sides, the reduction results from one of the following conditions: a) 2 and 3 are fused (N = 3); b) 1, 2, and 3 form 1 and 2 (N = 6); c) 2, 3, and 4 form 2 and 3 (N = 3); d) 5 is separated from the edge of the lip by a projection from an adjacent infralabial (N = 1); e) 1, 2, 3, and 4 form 1, 2, and 3 (N = 2); f) type of reduction unknown (N = 4). Of the specimens with 5-5 infralabials, two have the same type of reduction on each side, one has a different type of reduction on each side, and the type of reduction is unknown for the other two specimens. When seven infralabials are present on either one or both sides, the addition can result from infralabials 2 and 3 forming 2, 3, and 4 (N = 2); the type of addition is unknown in one specimen. In one specimen the second infralabial on the right side is reduced to a small wedge-shaped granule and in another specimen several infralabials on both sides are irregularly divided horizontally, although both specimens have six infralabials on the sides having the abnormalities. Preoculars Of the 245 specimens examined, 242 (98.8%) have one preocular on each side. Both preoculars are absent from two specimens, and one specimen has 1-0. In each case when a preocular is lacking, the "preocular" and prefrontal are fused. One specimen having 1-1 preoculars has both of them reduced to small vertical slivers. Postoculars