- 98 - 



Page 



Modiola cicerula 243 



cinnamonea 238, 239 



costulata • 240 



cuneiformis 237, 387 



discors 241 



discrepans 241,242, 387 



elegans , . . 235 



elongata . 237, 387 



faba 242 



fusca 239 



glandula • 243 



guyanensis 234 



impact a 241 



incurvata 234 



laevigata 239, 241 



lithodomus ..... 236 



(Lithodomus) canalifera • • . • 387 

 (Lithodomus) cinnamonea . • . .387 



Hthophaga 238 



magellanicus . . . 244 



metcalfei 235, 387 



microptera 234 



modiolus . 233, 236 



nexa 242 



nigra . . . 242 



opifex 239 



papuana 233 



patagonica 236 



pectinula 242 



philippinarum 235, 387 



pi eta • 237 



plictata 237 



plicatula 240 



plumula 239, 387 



pulex 238 



purpurata 240 



