=+5.22 In the article “Reproductive Biology of the Aquatic Salamander Amphiuma tridactylum in Louisiana” (Journal of Herpetology [1999]: 100–105), 14 female salamanders were studied. Using regression, the researchers predicted y 5 clutch size (number of salamander eggs) from x 5 snout-vent length (in centimeters) as follows:

For the salamanders in the study, the range of snout-vent lengths was approximately 30 to 70 cm.