494 



PROCEEDINGS OF THE NATIONAL MUSEIHVI 



Nodotoma, 137 



impressa, 69, 137 

 normale, Buccinum angulosum, 66, 67, 



69, 109, 110, 111, 112 

 norvegica, Lyonsia, 71, 164 



Mya, 164 

 Nucula, 149 



arctica, 151 



expansa, 149 



hyperborea, 152 



myalis, 70, 152 



tenuis, 70, 149 



tenuis expansa, 149 

 Nuculana, 150 



arctica, 67, 70 



minuta, 70, 150 



radiata, 70, 151 

 Nuculanidae, 67, 70, 150 

 Nuculidae, 70, 149 

 Nudibranchia, 143 



Obesotoma, 132 



simplex, 69, 133 



tenuilirata, 69, 132 



sp., 132, 133 

 obesus, Musculus niger, 157, 158 

 obnoxius, Culicoides, 454, 456 

 obscura, Solariella, 68, 80 

 obscurus. Turbo, 80 

 obsoletus, Ceratopogen, 290 



Culicoides, 258 

 occidentalis, Ptychatractus, 69, 129 

 occulta. Bulla, 140 



Cylichna, 66, 70, I40 



Cylichna occulta, 141 

 ochra, Brachoria, 7, 8, 10, 14, 17, 18, 20, 

 21, 44, 54, 56 



Brachoria ochra, 9, 10, 11 



Fontaria, 2, 10 

 Octopoda, 70, 148 

 Octopodidae, 70, 149 

 Octopus hokkaidensis, 149 

 ocumarensis, Culicoides, 280 

 Odinia, 223, 224, 225 (key) 



betulae, 224, 226, 230 



higuttata, 225, 226, 228, 230, 231, 

 233, 236 



boletina, 223, 226, 229 



conspicua, 224, 225, 228 



coronata, 226, 232, 234, 235, 236 



hendeli, 228 



inamaculata, 223, 224 



maculata, 223, 224, 229, 231, 232 



meijerei, 223, 224, 226, 231 



ornata, 223, 224, 231 



parvipundata, 226, 232, 235 



picta, 223, 226, 229, 232 



trinotata, 224 



williamsi, 223, 226, 232, 234, 235, 

 236 



xanthocera, 229 

 Odiniidae, 223 

 Odostomia, 141 



Cassandra, 70, I4I 

 Oecacta furens, 314, 404 



subg., 258, 260, 261, 262, 308, 314 



Oenopota, 65, 69, 132, 134 



elegans, 69, 135 



harpa, 66, 134 



harpularia, 69, 135 



nazanensis, 134 



tenuicostata, 134 

 "Oenopota" pyramidalis, 69, 136 



pyramidaiis gigantea, 136 



pyramidalis semiplicata, 136 



pyramidalis vahli, 136 

 oliveri, Culicoides, 287 

 Onchidiopsis, 92 



glacialis, 68, 92, 93 



groenlandica, 68, 93 



groenlandica pacifica, 68, 93 

 oneilli, Macoma, 182, 183 

 Onychoteuthis fabricii, 148 

 Opisthobranchia, 138 

 Opisthobranchiata, 66, 70 

 orbiculata, Axinopsida, 71, 172 



Axinopsis, 172 

 originalis, Tritonium antiquum, 123 

 ornata, Odinia, 223, 224, 231 

 orotundum, Buccinum, 108, 109 



Buccinum pemphigus, 108, 109 

 ortizi, Culicoides, 372 

 ostricolorella, Euzophera, 232 

 ovata, Mya truncata, 186, 187, 188 

 ovifera, Boltenia, 160 



pachymerus, Culicoides, 244, 249, 262, 

 264, 314, 454, 456, 458, 4^9, 460 

 (fig.), 464 

 pacifica, Limacina, 142 



Onchidiopsis groenlandica, 68, 93 



Spiratella, 142 



Trophon, 100 

 pacificus, Boreotrophon, 69, 100, 102 



Trophon, 100 

 Pagurus trigonocheirus, 117 

 painteri, Culicoides, 285, 287 

 pallida, Lunatia, 91 



Natica, 91 



Polinices, 91 

 pallidus, Polinices, 68, 90, 91, 92 

 pallipes, Calisius, 211 

 palpalis, Culicoides, 274, 278 

 pampoikilus, Culicoides, 245, 246, 260, 



268, 314, 323, 324 (fig.) 

 panamensis, Culicoides, 244, 245, 248, 

 249, 260, 266, 332, 334, 335 (fig.), 

 339 



Dipteryx, 243 

 panamericanus, Culicoides, 367 

 Pandanus, 247 

 Panomya, 189 



anipla, 71, 189, 190 



arctica, 71, 189, 190 



turgida, 189, 190 



subg., 189 

 Panopaea arctica, 189 

 Panope ampla, 189 

 papillosa, Aeolis, 145 

 pap3'rifera, Betula, 231 

 paraense, Haematomyidium, 314, 440 



