804 13. COLUBRIDM 



and more or less rectangular figures, between which are 

 similarly shaped prolongations downward of the black 

 ground.* Many show the red blotches spread out and 

 blended above, so that the downward prolongations of the 

 ground color have become detached and form a series of 

 black spots separated by red, from the narrow band of 

 ground color remaining on each side of the light dorsal 

 line. In others these black spots have become united and 

 form a black line, so that on each side of the light dorsal 

 line we have a line of black, one of red, another of black, 

 and the light lateral line.f In one specimen the black is 

 almost entirely replaced by red. These color variations are 

 all individual, none geographical. 



Length to anus 185 475 565 695 715 870 



Length of tail 67 160 190 227 200 210+ 



Variation. One hundred and thirty-five specimens 

 show the following variations: The loreal is 1 1 in all. 

 The preoculars are 1 1 in all except one specimen with 

 1 2 and two with 2 2. The postoculars are 3 3 in 

 ninety-five, or 73%; 3 4- in twenty-five, or 19%; A 4- 

 in seven, or 5%; 2 3 in three, or 2%; and 2 4- in one, 

 or 1%. The temporals are 1+2 1+2 in one hundred 

 and fourteen, or 88 %; 1+2 1+3 in eight, or 6%; 

 1 + 1 1+2 in three, or 2%; 1 + 1 1 + 1 in one, or 1%; 

 2+2 2+2 in one, or 1%; 1+3 1+3 in one, or 1%; 

 and 1+2 2+2 in one, or 1%. The supralabials are 7-7 

 in one hundred and four, or 80%; 7 8 in seventeen, or 

 13%; 8 8 in eight, or 6%; and 9 9 in one, or 1%. 

 The infralabials are 10 10 in one hundred and ten, or 

 85%; 9 10 in thirteen, or 10%; 9 9 in three, or 2%; 

 10 11 in two, or 1%; and 9 8 in two, or 1%. The 



*This and the following are the most common forms. 

 fThe Euttenia sirtalis tttratania of Cope. 



