README Appendix_S1.csv -CSV file with specimen number, species assignment, lat/long, and morphometric measurements (0.01mm precision, log-transformed) Columns record 17 measurements in millimeters: SVL (snout-vent length), TL (tail length), AG (axilla-groin length), CW (chest width), FL (femur length [rather than hindlimb length]), HL (humerus length [rather than forelimb length]), SG (snout-gular length), TW(tail width at rear of vent), TO (length of third toe), FI (length of third finger), HW (head width), ED (eye diameter), IN (internarial distance), ES (eye-snout distance), ON (orbito-narial distance), IO (inter-orbital distance), and IC (inter-canthal distance). Institutional abbreviations: RAP - Robert Alexander Pyron, DAB - David Alan Beamer, MNHN - Muséum national d'Histoire naturelle