94 



INDEX OF SPECIES. 



Plaxiphora ) 

 Flaciphora ) 



retusa, 318. 

 Plectodon 



scaber, 97, 124. 

 Pleuropus 



pellucidus, 173. 

 Pleurophyllidia 



Californica, 94, 133. 



lineata, 94. 

 Pleurotoma 



arcuata, 207, 208. 



aterriuaa, 183, 183, 271, 



P393- 



var. Melchersi, 271. 



atrior, 36, 183, 258, 271, 



P 393, P 394- 



bicanalifera, 183, 183, 271. 

 bicolor, 183. 

 bituberculifera, 330. 

 Bottse, 191, 238, 258, 



271, 294, P 392. 

 cedo-uulli, 185, 330. 

 cincta, 187, 258, 272, 



P 295 . 



clavulus, 183, 330. 

 collaris, 183, O 271. 

 concinna, 183, 271, S 162. 

 cornuta, 271. 

 corrugata 183, 183, O 271. 

 discors, 36, 183, 258, O 271, 



P 393, P 394- 



duplicata, 184, 183, 271. 

 excentrica, 184, 183, 271, 



P 393- 



exigua, 184, O 271. 



funiculata, 24, 27, 109, 184, 

 208, 226, 238, 258, 

 271, 282, 294, 330, 



P 390, P 39 1 , P 544- 

 gemmata, 205, 330. 

 gemmulosa, 184, 271. 

 gracillima, 284, O 330, S 163, 



S 164. 



grandiraaculata, 184, 271, 

 grauulosa, 183. 



Pleurotoma 



h^xagona, 183. 



incrassata, 184. 183, 238, 



O 271, 294, P 392, P 544. 

 iuerrais, O 205. 

 luctuosa, P 397. 

 maculata, P 391. 

 maculosa, 27, 235, 238, 



258, 330, P 391. 

 maura,0 191,0 258, 294, P 293. 

 militaris, 208. 

 Melchersi, 238, 294, P 393, 



P544- 



modesta, 187. 

 nigerriraa, 184, 183, 271. 

 uitida, 183. 

 nobilis, 205. 

 obeliscus, 184, 271. 

 Ocoyana, 77. 

 olivacea, 184, 208, 271, 



33, P 39- 



var., 258, P 390. 



oxytropis, 183, 330. 

 pallida, 184, 271. 

 picta, 207, 208, 330. 

 pudica, 330. 

 rava, P 399. 

 rigida, 184, 271. 

 rudis, 184, O 272, P393. 

 rugifera, 183. 



rustica, 36, 184, 272, P 393. 

 Schantarica, 217,0 220, O 223. 

 simplex, 217, 220, 223. 

 splendidula, 183. 

 striosa, 184, 272. 

 stromboides, 208. 

 thiarella, 272. 

 transmontana, 77. 

 triticea, 59. 



tuberculifera, 6, O 176, 330. 

 turricula, O 271. 

 unicolor, 183. 

 unirnaoulata, O 183, O 330. 

 variculosa, 183. 

 Plicatula 



dubia, var., 250, P 155. 



