1G4 Wisconsin Academy of Sciences, Arts and Letters. 



" A large species; in early days it was common in the western part of the 

 state; now rare." Hoy. 



L. 4-11 feet; reported from northwestern counties; rare; large specimens 

 very rare. 



Storeeia. B. & G. 



KEY TO THE SPECIES OP STORERIA. 



(a) Scales 15 rows; bslly red; G. 120-123; U. 40-50; Anteorbitals two; 



upper labials 5 or 6; lower 6 or 7 occipito-maculata. 



Cb) Scales 17 rows; under parts greenish or nearly white; G. 120-140; 



U. 43-80; upper and lower labial plates 7 dekayi. 



S. occipito-maculata, Storer. Red-bellied Snake. 



General color above grayish or brownish, with (usually) or without a dor- 

 sal band margined by darker spots; L. 9-15 inches; tail about 2 inches; 

 common tlirougout the state. 



S. dekayi, Holb. Little Brown Snake. 



General color grayish brown; dorsal stripe lighter margined by dotted 

 lines; a black line from the occipital plate to the angle of the mouth; one or 

 two black spots below the eyes; L. 12 inches or less; tail about 2; southern 

 part of the state; not rare. 



Tropidonotus, Kuhl. 



Our species have eight upper and ten lower labial plates; these are large 

 and prominent; aquatic habits; food mostly fish and other water animals. 



KEY TO THE SPECIES OF TROPIDONOTUS. 



(a) Dorsal scales 27 rows; outer roie smooth; above with quadrangular 



dark spots about 48 or 50 in number, and reaching to the end of the 



tail rhombifer. 



(b) Dorsal scales 23 (variety with 25); above with three series of dark 



blotches, the dorsal row larger than the others ; abdomen irregularly 



marked with yellow and brown sipedon. 



(c) Dorsal scales 23 ; under parts copper colored ; head large, triangular ; gen- 



eral color above, reddish black without spots or blotches erythrogaster* 



T. rhombifer, Hallowell. Holbrook's Water Snake. Water Adder. 



General color, brown; L. 2^-3 ft.; G. 140-145; U. 63-74; tail about 6 

 inches; unfrequented damp places; rare; Walworth county. 



T. sipedon, L. Water Snake. Water Adder. 



General color brownish; markings sometimes obscure in old specimens; 

 young with markings very decided, but with some variations in their colors; 

 body large; carnivorous, living almost entirely on fish; L. 3-4 ft.; tail 10-13 

 inches; G. 150-155; U. 65-80; southern counties; not common. 



* T. erythrogaster, Shaw. Smce this report was presented to the Academy, I have seen 

 two specimens of this species; one from near Beloit, and the other from Lake Geneva. Rare. 



