33. P1TUOPHIS 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 1 marked with jet black in such a way as to form 

 an irregular median subcaudal streak. 



Length to anus 824 950 1080 1170 1250 



Length of tail 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 5 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%; and 8 10 in one, or 7%. The infra- 

 labials are 12 12 in seven, or 50%; 13 13 in three, or 

 22%; 1314 in two, or 14%; 1213 in one, or 7%; and 

 14 16 in one, or 7%. The scale-rows are 35 in seven, or 

 54% ; 33 in four, or 3 1 % ; 34 in one, or 7% ; and 3 1 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 

 11. 



