----------------------------------------------------+---------+---------- |Number |Per cent CHARACTERISTIC |of |of |specimens|occurrence ----------------------------------------------------+---------+---------- No contact | 147 | 60.5 Contact of prefrontal with second labial on right | 26 | 10.7 Contact of prefrontal with second labial on left | 10 | 4.1 Contact of prefrontal with each second labial | 53 | 21.8 Contact of prefrontals with labial two on left and | | labial three on right | 1 | 0.4 Contact of prefrontals with labial three on left and| | labial two on right | 3 | 1.2 Contact of prefrontals with labial two on left and | | labials two and three on right | 3 | 1.2 ----------------------------------------------------+---------+---------- The specimen having the prefrontal in contact with labial 2 on the left and labial 3 on the right has seven supralabials on the right, the extra labial being added anterior to the eye. In two of the three specimens with the prefrontals in contact with labial 3 on the left and labial 2 on the right, the preoculars and prefrontals are fused on each side; the third specimen has each preocular reduced to a small vertical sliver. Of the three specimens having the prefrontals in contact with labial 2 on the left and labials 2 and 3 on the right, two are typical with respect to other characteristics that might result in this atypical condition, but one has the prefrontals and preoculars fused. Supralabials entering orbit Of the 246 specimens examined, 233 (94.7%) have the third and fourth supralabials entering each eye (Table 3). All snakes that have the fourth and fifth labials entering the orbit on either side also have seven supralabials on the same side. One specimen having only the fourth labial entering the eye on the right side also has six supralabials on that side, but the third supralabial is split diagonally and the part contacting the eye does not contact the lip and hence is not a supralabial. The remaining three atypical conditions (4/3 + 4; 3 + 4/3 + 4 + 5; 3 + 4 + 5/3 + 4) occur only one time each and on snakes having 6-6 supralabials. Contact of mental with chin-shields Of the 246 specimens examined, 190 (77.2%) have the mental in contact with both anterior chin-shields. The mental is in contact with only the left anterior chin-shield in 15 specimens, only the right anterior chin-shield in 2 specimens, and the mental does not contact either anterior chin-shield in 39 specimens. Separation of the mental and an anterior chin-shield always results from the posterior elongation of a first infralabial.