Alphonse R. Hoge's measurements of several very young specimens from Brazil suggest that at birth the female is slightly larger than the male.

I have surprisingly little information on the size and age at maturity. Carl Kauffeld has written to me of sexual activity in February 1943 of young born in March 1940. One female, collected on an island off the coast of Nicaragua, was gravid and measured 4 feet 8 inches from snout to vent (her tail should be between 6 and 7 inches long). The female from Central America which gave birth to four was only 3 feet 11 inches long.

What data there are on growth indicate considerable variation in rate; unfortunately, no one has kept complete records of one individual, whereas many have been made for a very short period of time. The results are too varied to allow generalization.