33. PITUOPHIS 739 
blotches. The head is yellowish olive anteriorly and later- 
ally, reddish above, without dark bands or other markings. 
The keels of the scales of the dorsal interspaces may be 
dark red. The lower surfaces are whitish or greenish yel- 
low, marked near the ends of some gastrosteges, anteriorly 
with red or pink, posteriorly with black. The urosteges 
are yellow marked with jet black in such a way as to form 
an irregular median subcaudal streak. 
Leneth ‘to: anuss 22 824 950 1080 1170 1250 
Lengthiof itaili2- = 120 137 168 190 163 
Variation.—Fourteen specimens show the following 
variations. The loreal is 1—1 in all counted (six). The 
preoculars are 2—2 in thirteen, or 93%; 1—1 in one, or 
7%. The postoculars are 3—3 in fourteen, or 100%. The 
temporals in five specimens are 4—4 in three, or 60%; 
3—4 in one, or 20%, and 4—S in one, or 20%. The supra- 
labials are 9—9 in seven, or 50%; 9—10 in five, or 36%; 
8—9 in one, or 7% 3 and 8—10 in one, or 7%. The infra- 
labials are 12—12 in seven, or 50% 3 13—13 in three, or 
22% 3 13—14 in two, or 14%; 12—13 in one, or 7%; and 
14—16 in one, or 7%. The scale-rows are 35 in seven, or 
54%; 33 in four, or 31%; 34 in one, or 7%; and 31 in one, 
or 7%; the average is 34 rows. The gastrosteges in fifteen 
specimens vary from 233 to 257, the average being 244; 
two males average 242, four females average 250. The 
urosteges in fourteen specimens vary from 57 to 67; the 
average being 62; two males average 63, and three females, 
60. 
The dark blotches between head and anus in six speci- 
mens vary from 39 to 48, the average being 44. On the 
tail in six specimens they vary from 10 to 12, and average 
1p WA 
