INDEX OF GENERA AND SPECIES. 



291 



Noverita globosa, 161, 222. 



Recluziana, 77. 



saxea, 77. 



secta, 222. 

 Niso, 224. 



polita, 224. 

 NUCULA, 102, 122, 197, 250. 



abrupta, 122. 



decisa, 102. 



divaricata, 102. 



Castrensis, 102. 



Conradi, 102. 



ccelata, 102. 



impressa, 58, 102. 



solitaria, 197, 250. 



Traskana, 250. 



truncata, 197, 250. 

 Nuculana, 121. 



Oregona, 121. 



penita, 121. 



Willamettensis, 122. 



OCINEBRA, 70. 



interfossa, 70. 



lurida, 70. 

 OLIVELLA, 75, 220. 



biplicata, 75. 



boetica, 75. 



Mathewsonii, 220. 



Pedroana, 75. 

 OPALIA, 78, 223. 



crenatoides, 78. 



var. insculpta, 78. 



Mathewsonii, 223. 

 OSTREA, 60, 106, 123, 203, 252, 272. 



appressa, 203, 252. 



Ostrea Attwoodii, 33, 106. 

 Bourgeoisie, 33, 106. 

 Brewerii, 252. 

 Boussingaultti, 275. 

 Cerrosensis, 35, 106. 

 flabellata, 275. 

 gallus, 106. 

 Heermannii, 107. 

 Idriaensis, 203, 252. 

 lurida, 106. 

 malleiformis, 252. 

 Panzana, 123. 

 subjecta, 123. 

 Tayloriana, 34, 106. 

 Titan, 107. 

 Yeatchii, 34, 60, 106. 

 vesicularis, 253, 272. 

 vespertina, 107. 



PACHYDESMA, 96, 119. 



crassatelloides, 96. 



Inezana, 119. 

 PACHYPOMA, 15, 83. 



biangulatutn, 15, 83. 



gibberosum, 83. 

 PAL^EATRACTUS, 147, 216 



crassus, 148, 216. 

 Pallium, 105. 



crassicardo, 105. 



Estrellanum, 105. 

 PANDORA, 18, 90, 117. 



bilirata, 117. 



punctata, 54, 90. 



scapha, 18, 90. 

 Panopcea, 179, 236. 



concentrica, 179, 236, 

 Parapholas, 88. 



