INDEX 



295 



Placostegus sp. 176 

 taeniatus 178 

 tricuspidatus 221 

 tridentatus 221, 288 

 umbilicatus 175 

 Polyphragma 225 

 Pomatoceros 222 

 auritubis 174 

 bucephalus 175 

 elephus 178 

 helicoides 174 

 strigiceps 177 

 tet racer os 175, 177 

 tricuspis 222 

 triquetra 222 

 Pomatostegus 222 

 actinocerus 175 

 bower banki 178 

 kroyeri 172, 236 

 latiscapus 174 

 macrosoma 222 

 stellata 222 

 strigiceps 177 

 Potamilla 185, 191, 192, 193, 202, 203, 



204 



acuminata 173 

 malmgreni 203 

 tnyriops 173 

 neglecta 192, 203 

 oculifera 204 

 oligophthalmos 175 

 polyophthalmos 175 

 reniformis 172, 178, 185, 193, 203, 



204 



suavis 173 

 tenuitorquus 174 

 torelli 173, 203 

 tortuosa 204 

 Potamis 193 



malmgreni 203 

 spathiferus 193, 203 

 Protis 227, 229 

 arctica 229 

 coccus 227 

 simplex 227, 229 

 Protoplacostegus 179, 226, 287 

 morchii 177, 179, 226, 287 

 Protula 226, 227 

 alba 228 



Protula arctica 229 

 atypha 180, 228, 332 

 diomedeae 228 

 dystera 226 

 geniculata 173 

 intestinum 227, 228 

 media 228 

 rudolphi 227 

 tubularia 228 

 Protulides 184, 185, 190 

 elegans 184, 185, 190 

 Protulopsis 227, 228 

 intestinum 227, 228 

 nigra-nucha 175, 227 

 Pseudopotamilla 178, 192, 193, 202, 203, 



205 



debilis 180, 204, 330 

 myriops 173 

 oculifera 193, 208, 324, 325, 326, 



332, 333 



oligophthalmos 175 

 polyophthalmos 175 

 reniformis 172, 178, 185, 193, 203, 



204, 208 

 suavis 173 



Psjgmobranchus 227 

 ccecus 227 

 multicostatus 227 

 protensus 227 



Rhodopsis 179, 223, 289 



pusillus 179, 223, 289 

 Romanchella 256, 258, 262 



perrieri 258 



Sabella 171, 183, 185, 187, 192, 193, 197, 



198, 200, 203, 204, 2O9 



acrophthalmos 174 



a r mat a 177 



aulaconota 173 



ceratodaula 177 



crassicornis 194, 195 



elegans 179, 194, 196, 310, 312, 324, 



326, 333 

 formosa 179, 195, 196, 312, 325, 



326, 328, 330 

 fullo 173 

 fusca 177 

 grandis 177 



