42 NOKTH AMERICAN BATRACHIA AND REPTILIA. 



darkest in the center; a yellow spot near anterior border of each 

 of the anterior gastrosteges; G. 125-130. Florida. 

 Dorsal rows 21, all carinated. 



67. T. compress Icaudus^ Kenn. Body much compressed 

 near tail; postorbitals three, upper and lower small, middle one 

 with lower border produced to labials; color above yellowish- 

 olive; four black stripes on neck; body anteriorly crossed by 

 zigzag black bars, posteriorly with three series of spots, not 

 alternating. Florida. 



68. T. ustus, Cope. Nostril in the prenasal plate; postor- 

 bitals two; color above yellowish ferruginous, palest on the head 

 and darkest on the tail; anteriorly are indistinct half bands; 

 posteriorly the bands cross the back completely; beneath salmon 

 colored; G. 125-130. Florida. 



Dorsal rows 23-25. 



69. T. fasciatus^ Linn. Postorbitals two or three; color 

 above blackish-brown, with transverse black dorsal blotches, and 

 about 35 sub-triangular or oblong red spots on the flanks; some- 

 times broken rings of yellow dots across back; beneath reddish- 

 white, sometimes blotched with black; G. 128-135. Austrori- 

 parian regions. 



70. T. sipedon^ subsp. sipedon^ Linn. Postorbitals three; 

 color aboye brownish, with three series of alternating dark 

 blotches bordered with black, more or less confluent, especially 

 anteriorly, about 30 from head to tail; the light intervals some- 

 times obsolete; beneath yellowish blotched with brown; G. 135- 

 145. Eastern and Austroriparian regions, except Texas. 



71. T. sipedon^ subsj). woodhouse)\ B. and G. Color above 

 dusky, with three series of black blotches, about 40 in number; 

 a narrow whitish line between the dorsal blotches; beneath yel- 

 lowish, sometimes spotted with black; G. 140-15(>. Texas to 

 Missouri; Illinois. 



72. T. sipedon., subsj). erythrogaster^ Shaw. Postorbitals 

 three; dorsal scales very strongly keeled on posterior part of 

 body; color above uniform reddish (black in alcohol), and beneath 

 copper color; G. 148-155. Austroriparian region, except Texas; 

 Michigan, Illinois.^ Kansas. 



Dorsal rows 29, all carinated. 



73. T. taxispilotus., Holb. Postorbitals two; color above 

 reddish-brown, with three series of subquadrangular blackish 

 blotches, about 46 in number; the dorsal series seven to ten rows 

 wide, and two to three scales long; the lateral series nine to ten 



