FIG. 1 in Temperature and Development Drive Variation in Oral Morphology among Tailed Frog (Ascaphus spp.) Populations

FIG. 1. Pinned specimen of Ascaphus montanus (specimen ID WCF08228 from Lost Horse Creek, MT) showing labeled oral morphology, including labial tooth rows. Rows are numbered from anterior to posterior. The A2, A3, and P1 rows are biserial (i.e., have two rows of teeth), as demonstrated by the labeled P1 row. The labial tooth row formula (see Methods) for this specimen is 3/9(1), where (1) indicates the medial gap in the P1 row.