INDEX TO SCIENTIFIC NAMES 
The pages upon which a particular species or subspecies is defined or treated 
in detail are printed in bold-face; synonyms are in italics. 
Mere variations in the spelling of scientific names have not been listed sep- 
arately in the index. Thus, Ambyostoma californiense and Ambystonia Califor- 
nia, synonyms of Ambystoma californiense, are to be found under this name. 
For purposes of a general index, consult the table of contents, and for the 
common (vernacular) names of species see the systematic list, pages 42-43. 
Acris g. crepitans, 15. 
Alytes obstetricans, 16. 
Amblystoma mavortium, 60. 
rubrum, 44, 48. 
tenebrosum, 77, 80. 
tigrinum, 60, 77. 
Ambystoma, 83. 
californiense, 10, 15 , 19, 21, 23, 31, 
35, 37, 40, 42, 60 - 71 , 93, 284, 
304, 316, 318. 
ensatum, 77. 
macrodactylum, 21, 23, 31, 42, 71 - 
73 . 
paroticum, 21, 23, 31, 40, 42, 74 - 76 . 
punctatum, 15, 16, 66, 83, 84. 
punctulatum, 124, 127. 
tigrinum, 62, 66, 67, 69, 70, 71. 
tigrinum californiense, 60. 
Ambystomidae, 42, 88. 
Amphiuma, 88. 
Anaides ferreus, 117. 
lugubris, 124, 140. 
Aneides, 20, 97. 
ferreus, 21, 32, 43, 117 - 119 , 122, 
131. 
flavipunctatus, 7, 15 , 21, 31, 37, 43, 
119 - 124 . 
iecanus, 119. 
lugubris, 4, 6, 22, 87, 93, 112, 118, 
122, 123, 141. 
farallonensis, 8, 21, 32, 43, 140- 
143. 
lugubris, 15 , 21, 24, 27, 29, 32, 
37, 43, 124 - 140 , 285, 320. 
Aplodontia, 88. 
Aplodontia rufa phaea, 112. 
Ariolimax, 87. 
Ascaphus. 20. 
truei, 7, 18, 19, 21, 23, 32, 40, 42, 
43, 143 - 147 , 256, 262. 
Autodax, 124. 
ferreus, 117. 
iecanus, 119, 123. 
lugubris, 4, 124, 140. 
farallonensis, 140. 
Batrachoseps, 20, 97, 114, 130, 135, 
137, 138. 
attenuatus, 15, 21, 31, 37, 43, 87, 
89-97, 98, 99, 100, 102, 112, 
119, 130, 284, 320. 
attenuatus, 98, 99. 
catalinae, 8, 21, 31, 43, 98-99. 
leucopus, 98. 
major, 21, 31, 43, 98, 99 - 100 . 
nigriventris, 89, 91. 
pacificus, 8, 21, 31, 43, 101 - 103 . 
pacificus, 89. 
Bufo, 11, 28, 40, 59. 
alvarius, 9, 17, 19, 21, 23, 32, 43, 
163 - 167 , 326. 
americanus, 15, 177, 178, 189, 201, 
202 . 
beldingi, 195. 
boreas, 169. 
boreas, 7, 167, 173, 180. 
boreas, 21, 23, 32, 43, 167 - 169 . 
halophilus, 7, 8, 10, 15 , 21, 22, 
23, 29, 32, 36, 37, 39, 40, 43, 
161, 162, 169 - 182 , 185, 285, 
326, 330, 334. 
nelsoni, 170, 173. 
canorus, 8, 15 , 21, 23, 32, 42, 43, 
116, 182 - 187 , 183, 336. 
cognatus, 11, 20, 70, 161, 166, 177, 
187, 203. 
californicus, 21, 33, 43, 174, 192 . 
cognatus, 21, 23, 33, 43, 187 - 192 , 
324. 
columbiensis, 167, 168, 170, 173. 
compactilis, 15. 
debilis, 197. 
dipternus, 189. 
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