Excerpt - page 91: "... anuran species, including the western toad and the Cascades frog (Ranacascadae). An explanation for one decline may be in the offing. ..."
Excerpt - page 6: "... two taxa occasionally hybridize at points of contact. CASCADES FROG Ranacascadae Pl. 16, Map 53 IDENTIFICATION: r ;/4-3 in. (4.4-7.6 cm). ..."
Excerpt - page 208: "... radiation. This effect has also been found in Cascades Frogs (Ranacascadae), Long- Toed Salamanders (Ambystoma macrodactylum), and Northwestern Salamanders (Ambystoma gracile). ..."