id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
46590	Boulenger, George Albert	The Snakes of Europe			.txt	text/plain	56758	3394	69	Some snakes have the head covered with scales or small tubercles similar I. Eyes minute, under the head-shields; mouth small, inferior; body with small scales; ventral shields much narrower than the body; tail Eyes small, moderate, or large; ventral shields at least nearly as raised; rostral usually in contact with a single apical shield, rarely apical shield; 8 or 9 upper labials; scales in 21 rows, rarely 19; see, among European snakes, in some specimens of _Tropidonotus natrix_ grades of development, form several series, so that in a snake like our head-shields and scales of many snakes, and in the deep pits on the Other snakes, such as the _Ancistrodon_ and some species of _Coluber_ small mammal in the skin of the head of this snake, above each eye, in dark green or black above, with yellow spots forming transverse series small dark spots which usually form longitudinal series, and may be	./cache/46590.txt	./txt/46590.txt