herpetologist

From herpeto- (From Ancient Greek ἑρπετόν (herpetón, “creeping animal, reptile, especially a snake”)) + -logist.

herpetologist (plural herpetologists)

1. One who studies reptiles and amphibians; a reptile and amphibian specialist.
   • 2014, Elizabeth Kolbert, chapter 1, in The Sixth Extinction: An Unnatural History, Henry Holt and Company:

     Already, Griffith has observed several amphibian extinctions. Pretty much every herpetologist working out in the field has watched several.

• herp
• herper
• herpetology