INDEX OF SPECIES. 



Ill 



Trigoua 



crassatelloides, lo, 22, 196, 

 229, 232, 234, 246, 

 30s, 349, 351, P 58, 

 V 216. 



Dillwyni, V 55. 



gracilior, P 55. 



Hindsii, 23, 154, 155,0 241, P 



55- 



, var. 229, 366. 



humilis, 246, 305, P 57. 



Intermeciia, P 55. 



maotroides, 60, 192, 229, 



364, P SS- 

 nitidula, 106. 

 planulata, 23, 27, 229, 234, 



246, 305, 366, P 59. 

 radiata, 27, 106, 201, 192, 



O 229, 232, 234, 241, 



246, 305, O 364, P 54, 



P 55, P 56, P 58, P 59. 

 semifalva, P 56. 

 stultornm, 10, 12. 

 tantilla, 229, 305, TJ 201. 

 tripla, 366, P 55. 

 undulata, P 59. 

 ventricosa, P 55. 

 Trigonella 



crassatelloides, 196, 207, 

 296, 353, V 216. 

 Triodopsis 



lorioata, 157. 

 Mullani, 157. 

 omphalia 

 puleherrima, 121. 

 Triforis ) 

 Triphoris ) 



adversa, 99, 114, 146, 169. 

 alternata, 36, no, 155, 1.86, 



O 256, 272, 325, P 341. 

 inconspicua, 32, 186, 256, 



272, 325, P 341, P 342. 

 infreqnens, 32, 186, 256, 

 272, 325, P 342. 

 Triopa 



Catalinse, 95, 



Triton 



anomalus, 205, 337. 

 oancellatas, 83, 218. 

 Chemnitzii, 182, 188, 235, 



238, 261, 265, 270, 



P 455, V 209. 

 oiliatus, 218. 

 oingulatus, 182. 

 olandestiuus; 292, 338, 



360. 

 constriotus, 182, 231, 270, 



337- 

 crebristriatus, 284, 337, 



S 165. 

 deoussatus, 270. 

 elegans, 6i. 

 exlmius, 284, O 337. 

 fusoides, 182, 270, 337. 

 gibbosus, 182, 270, 337. 

 lignariiis, 24, 182, 205, 



271,0 337. 

 lineatus, 182, 188, 360. 

 nodosus, 261, P 455. 

 Oregonensis, 83, 119, 210. 

 pagodiis, 178, 186, 268, 



292, P 497, P 552. 

 parvus, 284. 

 perforatus, 261, 265, P 455, 



V 209. 

 pilearis, 24, 364. 

 piotus, 185, 292, 337, 



360, S 166. 

 reticulatus, 1S3, 188, 



337, 360. 

 scaber, 10, 179, 347. 

 scalariformis, 182, O 337. 

 siphonatns, 235. 

 Sowerbyi, 188, 337, 360. 

 tigrinus, 18, 24, 182, 211, 



212,0 337. 

 turriculatus, 188, 360. 

 vestitus, no, 205, 270, 



337, 364. 



, var. senior, 270. 



Tritonia 



arboresoens, 218. 



