33. PITUOPHIS 



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. 



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 1007o- 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%; 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 

 11. 



