CH:
Thanks for the input. Forty cm is about 15 3/4 inches and much smaller than I thought would be the case with species of Sand Boas.

I was curious because during the last number of years, I have been gathering information on a dwarf form of the Rubber Boa that occurs from the S. Kern Plateau and southern Greenhorn Mts. on south in S. Calif. The largest members of that dwarf morph (females), are a shade over 22 inches or about 56 cm.

Thanks again. Richard F. Hoyer