T. Rodgers - 1940 1. Pituophis sayi June 21, 1940 Mus. Vert. Zool., Univ. Calif., Berkeley, Calif. (get exact locality from letter to Jellison about July 15th) Specimen brought in alive from Bitterroot River, Montana, by Ward C. Russell. Part of accession number 6254. A large adult snake. Ground color of head. Dorsally, between Sulphine Yellow and Citrine (Pl I V, 21 j); ventrally between white and Ivory Yellow (nearer white) (Pl XXX, 21" g). Markings on head very dark brown, appearing black except some at edges of some of the marks. Dorsal blotches - Anterior 5+black; farther back they have brown centers. 8th., Bfussels Brown (Pl III, 15 m). Farther back the black borders are replaced by fragmentary darker borders. Center of 16th. blotch, Dresden Brown (Pl XV, 17' k). Farther back, brown becomes redder; 30th. blotch, Cinnamon Brown (Pl XV 15' k). Darker farther back; 42nd. darker than Vandyke Brown (Pl XXVII 11' m), the then blending to black on tail. Interspaces between blotches. Anteriorly, less yellow thar Naples Yellow (Pl XVI, 19' d). Become more yellow posterie orly, 25th. Naples Yellow, same to end of tail. Belly slightly lighter and finely- faintly less green than Maritus Yellow (PI IV, 23 f). Nearer to this than to any other color in the book. Iris, Martius Yellow posteriorly and other places except in the area shaded in in the diagram. The crescent-shaped mark is darker than Mummy Brown (Pl XV, 17' m). The posterior ends and edges of the dark crescent are reddish, tho the red and brown arenot well defined.