32 
NORTH AMERICAN BATRACIIlA AND REPTILIA. 
cal hexagonal, elongate; dorsal scales carinate, in 17 rows; anal 
divided; G. 120-130; eye large; head distinct from slender body; 
unicolor above. 
15. H. striatula , (Linn) B. and G. Above reddish-gray; 
below salmon color; G. 125-130. Virginia to Texas; Illinois 
(Ridgway). 
4. Genus Tantilla, B. and G. 
Nasals two; loral absent; anteorbital one; posterior one or 
two; dorsal scales smooth; anal divided; eyes small; head con- 
tinuous with body; unicolor. 
16. T. coronata , B. and G. One anteorbital; two postor- 
bitals; color above reddish-brown; head a deep chestnut-brown; 
a black band across neck above, in front of which is a narrow 
lighter space; dorsal rows 15; G. 140-145. Georgia and Miss- 
issippi. 
5. Genus Abastor, Gray. 
Nasal one, grooved beneath nostril; loral and postorbital 
forming anterior part of orbit; postorbitals two; vertical elon- 
gated; dorsal scales smooth; anal divided; eyes moderate; head 
continuous with body. 
17. A. ery thro grammas, (Daud.) Gray. Bed-lined Snake. 
Color above bluish-black, with three longitudinal lines of red 
(yellow in alcoholic specimens); median line narrowest; beneath 
flesh color, with two series of bluish-black blotches; dorsal rows 
19; G. 175-185. North Carolina to Alabama; Illinois. 
6. Genus Farancia, Gray. 
Prefrontal one; nasal one; loral and postfrontal form anterior 
part of orbit; postorbitals two; dorsal scales smooth; anal divided; 
eye small; head slightly distinct from body. 
18. F. abacura , (Holb.)B. and G. Bed-billed Horn Snake. 
Color above bluish-black, with sub-quadrate red spots on the 
flanks; beneath red, barred and blotched with black; dorsal rows 
19; G. 170-175. Austroriparian region. 
7. Genus Contia, B. and G. 
Nasal one; loral present; anteorbital one; postorbitals two 
or one; superciliaries small, narrow; width nearly uniform; ver- 
tical broad; dorsal scales smooth; anal divided; eye small; head 
short, depressed. 
