Index 



Rana sphenocephala, 20, 48 186-188. 



sylvatica, 3, 4, 18, 26, 38, 49, 205-211, 



208-210 (development), 208-209 



(voice), 211 (colour change). 



virescens, see pipiens. 



virescens brachycephala, see pipiens. 



virescens sphenocephala, see sphenoce- 



phala. 



virgatipes, 20, 26, 38, 50, 222-224. 

 RANID^;, 8, n, 26, 43, 48, 171-240. 

 Regeneration, 18, 236. 



Respiration of adult, 70, 76, 231, 233, 237. 

 of tadpole, 5, 8, 14, 68-69, 70, 179-181 



236, 237. 

 Rocky Mountain Toad, see Bufo 1. 



Salamanders, see URODELA. 

 Salientia, animal behaviour, 27-35. 



Classification, 7. 



Colour of, 22-27. 



Development and metamorphosis, 

 3-7- 



Distribution, 35-42. 



Hibernation, 15-16. 



Phylogeny, 13. 



Poison, 16-18. 



Regeneration, 18. 



Songs of, 18-22. 



Salt-marsh Frog, see Rana pipiens. 

 Scaphiopus couchii, 41, 44, 57-59. 



Iiammcrtidii, 41, 44, 59-60. 



h. bombifrons, 40, 44, 61-62 



holbrookii 4, 38, 43, 53-57. 55 (call), 



55-56 (life history). 



Screaming Frog, 198 (see Rana damitans). 

 Skeletons of Batrachia, i. 



of Fishes, i. 



of Reptiles, 2. 



of Salientia, 2. 



of Urodela, 2. 



Skin absorption _of water, 78, 90. 

 Smilisca baudinii, 27, 40, 46, 151-153. 

 Snakes, 72. 



Sonoran Subregion, 39. 

 Southern Bullfrog, see Rana grylio. 

 Southern Leopard Frog, see Rana sphenoce- 



phala. 



Southern Spadefoot, see Scaphiopus couchii. 

 Southern Toad, see Bufo lentiginosus 

 Southern Tree Frog, see Hyla squirella. 

 Spadefoot of the Western Plains, see Scaphio- 



pus h. bcmibifrons. 

 Spadefoot Toads, see PELOBATIDCE. 

 Spea, see Scaphiopus. 

 Special senses, hearing, 30, 32. 

 lateral line, 6. 



Special senses, sight, 30, 32. 



touch, 28, 29, 34. 

 _ taste, 28, 90. 



Spring Frog, see Rana damitans. 

 Spring Peeper, see Hyla pickeringii. 

 Statistics on food of toad, 83-86. 

 Stegocephali, 12, 13. 



Stejneger, Dr. Leonhard, 52, m, 157. 

 Striped Frog, see Rana virgatipes. 



Suckers," 68, 179. 



Swamp Tree Frog, see Chorophilus nigritus 

 Syrrophus marnockii, 39, 40, 45, 165. 



Tadpole, development, 67-71, 176-181. 



enemies of, 146, 181-183. 



food of, 69, 210, 235. 



lateral line sense organs, 6. 



metamorphosis, 5-6, 69-70, 235-238. 



mouth structure, 69, 181, 235. 



regeneration of tail, 18, 236. 



respiration, 5, 8, 14, 68-69, ?o, 179- 

 181, 236, 237. 



suckers, 68, 179. 



Tailless Batrachia, see Salientia. 

 Temperature, 4, 6, 15-16, 23, 28, 33. 

 Tongue of Toad, 81 (Fig.Sg). 

 Toads, see BUFONID/E. 

 Tree Frogs, see HYLID/E. 

 Tree Toad, see Hyla versicolor. 

 Triton, 2. 



Urodela, 2, 5, 13, 147, 209. 



Vocal Pouches, External, 19, 75, 95, 101 



.. , J3, 172, 188, 195. 



Vocal bacs, 19, 75, 233. 



Voice among Salientia, 18-22 (general), 

 95-96 (B. fowleri), 64, 66, 75, (B. 

 americanus), 91 (B. lentiginosus), 101 

 (B. cognatus), 103 (B. compactilis), 

 105 (B. quercicus), ng(H. versicolor), 

 123 (H. aremcolor), 128 (H. cinerea), 

 T.3o(H.evittata), 133 (H. andersonii), 

 138 (H. regilla), 139-143 (H. picker- 

 wgii), 155 (Acris), 164 (Lithodvtes), 

 167 (Engystoma), 173 (R. pipiens), 

 189 (R. palustris), 198-200 (R. dami- 

 tans), 209 (R. sylvatica), 232 (R. 

 catesb^ana). 



Warts, 1 8, 80. 



Water Dog, 2. 



Western Frog, see Rana pretiosa. 



Western Spadefoot, see Scaphiopus ham- 



mondii. 

 Wood Frog, see Rana sylvatica. 



253 



