40 NORTH AMERICAN BATRAOHIA AND REPTILIA. 



G. 135-160. Entire North America, except Sonoran region and 

 along Pacific coast. 



56. ^. sirtalis, suhs-p. parietalis, (Say.) Co-pe. Color above 

 olive-brown; two series of quadrate black blotclies on sides, be- 

 tween which are blotches of brick-red; beneath bluish-green; 

 G. 155-160. Central and Pacific regions; Indiana and Illinois. 



57. £'. sirtalis, subsp. ohscura., Cope. Color above uniform 

 brown; spots obscure; dorsal and lateral bands distinct. Eastern 

 sub-region north of "Washington; noithern part of Pacific 

 region. 



58. E. sirtalis., subsp. dorsalis, (B. and G.) Cope. Color 

 above olivaceous, with three broad greenish-white stripes; below 

 lateral ones and on abdomen greenish-white; two rows of small 

 spots on each side, the superior row connected by a narrow line; 

 upper labials seven or eight; G. 160-170. Entire North 

 America. 



y. No dorsal band. 



59. E. sirtalis, subsp. ordinata, (Linn.) Cope. Color 

 above olive, with three distinct rows of dark square spots, about 

 85 fi'om head to anus; lateral and dorsal stripes very indistinct 

 or wanting; beneath greenish-white, with black spots on sides of 

 scuttelse; G. 135-155. Northern part of Eastern region and 

 North Alabama. 



19. Genus Storeria, B. and G. 



Nasals two; loral absent; anteorbitals one or two; postorbi- 

 tals two; dorsal scales carinate; anal divided; head distinct from 

 small body; general color brown, with two dotted dorsal lines. 



60. S. dekai/i, (Holb.) B. and G. DeKay's Brown Snake. 

 Color above gray or chestnut-brown, with a clay-colored dorsal 

 band; a series of dots along its margin, two scales apart; two 

 other dotted lines and traces of a third on sides; a dark patch 

 on each side of the occipital; beneath grayish-white; one ante 

 and two postorbitals; dorsal rows 17; G. 120-140. Central, 

 Austroriparian and Eastern regions. 



61. S. occipitomaculata, (Storer.) B. and G. Ped-bellied 

 Snake. Color above gray or chestnut-brown, with sometimes a 

 paler vertebral line, margined by a series of black dots; three 

 light blotches on base of head; beneath red or salmon-color; 

 two anterior and posterior orbitals; dorsal rows 15; G. 115-130. 

 Eastern region; Soutli Carolina and Georgia. 



