INDEX. 



259 





OSCANIUS Leach. . 191, 212 

 Ossiania Moots., . . 2 

 0xiani Kob., (Philine), . 15 

 Ossiansarsi Friele (Philine), 1 4 

 Ovalis Cpr. (Urabr.), . 177 



Ovalis Pse. (Pleurobr.), . 202 

 Ovata Jeffr. (Retusa), . 233 



OXYNOEIDJE, . . . 161 



OxYNOERaf., . . .162 



Pacifica Pse. (Dolabrifera), 122 

 PacificLira Bgh. (Gastro- 



pteron), . . .42 

 Panamensis Pils. (Tethys), . 88 

 PARAPLYSIA Pils., . . 115 

 Parthenopia Oken., . . 39 

 Parviplica Dall (Torn.), . 232 

 Parvula Mch. (Aplysia), . 83 

 Parvus Hedl. (Pugnus), . 234 

 Patagonicus Orb.(Pleurobr.) 200 

 Patelloidea Cantr. (Parrao.), 187 

 Patinaria Guppy (Haliot.), 210 

 Patula Jeffr. (Philine), . 11 

 Patulus Risso (Scaphander), 13 

 Peasei Pils. (Tethys), . . 95 

 Pectinata Dillw. (Bulla), . 12 

 Pelta Quatref., . .171, 239 



Peltidce 170 



Pellucidus Ad. (Lobiger), . 167 

 Pellucidus Pse. (Pleurobr.), 203 

 Perforates Ph. (Pleurobr.), 197 

 Peronii Blv. (Dolabella), . 153 

 Peronii Cuv. (Pleurobr.), . 207 

 Perviridis Pils. (Aplysia), . 81 

 PETALIFERA Gray, . .128 

 Petalifera Rang (Aplysia), . 129 

 Petersonii Gray (Aplysia), . 113 

 Petersoni Sowb. (Aplysia), . 70 

 PHANEROPHTHALMUS Ad., 38 

 Philippi Krohn (Lobiger), . 167 

 PHILINE Asc. . . 1,2, 238 

 Phyline, .... 2 

 PHILINID^E, . . vi, 1 

 Philinopsis Pse., 44, 56, 1 

 PHYCOPHILA Ad., . 68, 114 

 PHYLL APLYSIA Fisch., . 132 

 Picta Pse. (Lobiger), . 169 



Pictum Ad. (Opera), . 183 



Pictum Ad. (Umbr.), . 183 



Pictus Pse. (Lobiger), . 170 

 Piperata Smith (Aplysia) . 115 

 Planata Dall (Philine), . 24 

 Planciana Lara. (Bullaea) . 11 

 Pleii Rang (Aplysia), . 148 

 PleiiRang(Notarchus), . 148 

 PLEUROBRANCHID.E, 170, 190 

 PLEUROBRANCHJEA Leue, 



191, 223 



Pleurobranchidium Blv., . 223 

 Pleurobranchillus Bergh, . 221 

 PLEUROBRANCHUS Cuv., . 191 

 Placobranchus Gray, . .114 

 Plicatulum Mts. (Umbr.) .178 

 Plumula Mont. (Bulla), . 194 

 Plumula Mont. (Pleurobr.), 193 

 Plumula Vayss. & Bergh. 



(Pleurobr.), . . .195 

 Plumulatusluoc. (Pleurobr.), 194 

 Polaris Auriv. (Philine), . 22 

 Poliana Chiaje (Aplisia), . 70 

 Polyomma Mch.(Notarchus) 139 

 Porosa Leach (Berthella) . 194 

 Poster 'obranchcea Orb., . 44 

 Posterobranchus Roch., . 239 

 Prasina Mch. (Pelta), . 173 

 Protea Rang (Aplysia), . 78 

 Pruinosa Clark (Philine), . 26 



PSEUDAPLYSIA Pils., . .131 



PTERYGOPHYSIS Fisch. ,162, 169 

 PUGNUS Hedley, . . 233 

 Pulmonica Gld. (Aplysia), . 96 

 Punctata Ad. (Bulla), . 14 

 Punctata Clark (Philine), . 17 

 Punctata Cuv. (Aplysia) . 70 

 Punctata Phil. (Bulla) 13, 14 

 Punctata Pse. (Syphon ota), 95 

 Punctatus Ph. (Notarchus), 137 

 Punctatus Q. & G. (Pleu- 

 robr.), . . . .205 

 Punctilucens Bgh. (Aglaja), 54 

 Punctilucens Bgh. (Dorid.), 55 

 Punctulata Raf. (Tylo.), . 186 

 Punctulata T.-C. (Phyll- 



aplysia), . . . .131 

 Purourea Bgh. (Aglaja), . 52 

 PL 3gh. (Dorid.) . 52 



