------------------+---+-----------+------------+----------+
|Tepalcatepec Valley | 50| 10 (20.0%)| 17 (34.0%) |23 (46.0%)|
+------------------------+---+-----------+------------+----------+
|Morelos | 12| 2 (16.6%)| 5 (41.7%) | 5 (41.7%)|
+------------------------+---+-----------+------------+----------+
|Izucar, Puebla | 4| 2 (50.0%)| 0 (0.0%) | 2 (50.0%)|
+------------------------+---+-----------+------------+----------+
|Southern Sinaloa | 1| 1(100.0%)| 0 (0.0%) | 0 (0.0%)|
+------------------------+---+-----------+------------+----------+
|Puerto Vallarta, Jalisco| 2| 2(100.0%)| 0 (0.0%) | 0 (0.0%)|
+------------------------+---+-----------+------------+----------+
|Colima | 45| 25 (55.0%)| 18 (40.0%) | 2 (5.0%)|
+------------------------+---+-----------+------------+----------+
|Coast of Michoacan | 55| 35 (63.6%)| 17 (30.9%) | 3 (5.5%)|
+------------------------+---+-----------+------------+----------+
|Acapulco, Guerrero | 7| 7(100.0%)| 0 (0.0%) | 0 (0.0%)|
+------------------------+---+-----------+------------+----------+
|Chilpancingo, Guerrero | 10| 1 (10.0%)| 4 (40.0%) | 5 (50.0%)|
+------------------------+---+-----------+------------+----------+
|Pochutla, Oaxaca | 13| 6 (46.2%)| 6 (46.2%) | 1 (7.6%)|
+------------------------+---+-----------+------------+----------+
|Tehuantepec, Oaxaca |177| 81 (45.8%)| 67 (37.8%) |29 (16.4%)|
+------------------------+---+-----------+------------+----------+
|Tonola, Chiapas | 1| 0 (0.0%)| 0 (0.0%) | 1(100.0%)|
+------------------------+---+-----------+------------+----------+
|Veracruz | 33| 26 (78.8%)| 6 (18.2%) | 1 (3.0%)|
+------------------------+---+-----------+------------+----------+
| Total |410|198 (48.3%)|140 (34.2%) |72 (17.5%)|
+------------------------+---+-----------+------------+----------+

1. Although the highest percentage of individuals having the
supraorbital and postorbital crests forming a sharp angle is
from localities in the Balsas-Tepalcatepec Basin, numerous
individuals from throughout the range of _marmoreus_ have the
crests forming an angle (Table 1).

2. In all samples of ten or more specimens, some toads have
the supraorbital and postorbital crests forming a sharp
angle, some have the crests forming a curve, and some have
an intermediate condition.