42 
NORTH 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. compressicaudus , 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 . fascial us , 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 above 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 , subsp. woodhousei , 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. 140-150. Texas to 
Missouri; Illinois. 
72. T. sipedon , subsp. erythroq aster, 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 
