INDEX. 



211 



Myriapoda, 135, 163 

 Mysis, 133, 151 

 Mytilus, 97, 99, 109 

 Myxidium, 2 

 Myxospongida, 17 

 Myxosporidiida, 2 

 Myzostoma, 78 

 Myzostomida, 78 



NARCOMEDUS^J, 22 

 NautUus, 99, 132 

 Nebalia, 133 

 Nemathelminthes, 51 

 Nematoda, 51 

 Nemertinea, 40, 49 

 Neo-crinoidea, 61 

 Neomenia, 98 

 Neosporidia, 2 

 Nereis, 78, 79 

 Neuroptera, 136 

 Noctiluca, 2, 9 

 Nucula, 97 



OBELIA, 22, 26 

 Octopoda, 99 

 Octopus, 99, 132 

 Oligochseta, 78 

 Oniscus, 152 

 Onychophora, 135 

 Ophiura, 60, 67 

 Ophiurida, 60 

 Ophiuroidea, 60, 67 

 Opisthobranchia, 98 

 Orbicella, 23, 36 

 Orthoptera, 136 

 Oscarella, 17 

 Ostracoda, 133 

 Ostrea, 97, 111 

 Oxytricha, 3, 14 

 Oyster, 111 



PARAM^CIUM, 3, 11 

 Parypha, 22, 28 



Patella, 98 

 Pauropoda, 136 

 Pauropus, 136 

 Pecten, 97, 103, 110 

 Pectinatella, 56, 58 

 Pectinibranchia, 98 

 Pedata, 61 

 Pedicellina, 56 

 Pediculus, 136 

 Pedipalpida, 134 

 Pennaria, 29 

 Pennatula, 23 

 Pennatulacea, 23 

 Pentacrinus, 61 

 Peranema, 2, 7 

 Pericolpa, 23 

 Peridium, 2 

 Peripatus, 135 

 Periplaneta, 136 

 Peromedusse, 23 

 Perophora, 174, 180 

 Petasus, 22 

 Phacus, 7 

 Phalangida, 135 

 Phalangium, 135 

 Phanerozonia, 60 

 Phascolosoma, 78, 95 

 Philampelus, 136 

 Phoronida, 56 

 Phoronis, 56 

 Phoxichilidium, 135, 162 

 Phrynus, 134 

 Phylactolsemata, 56 

 Phyllapoda, 133 

 Phyllocarida, 133 

 Physalia, 22, 31 

 Placophora, 97 

 Planaria, 39, 40 

 Planocera, 39, 43 

 Plasmodium, 2 

 Platyhelminthes, 39 

 Platysamia, 136 

 Pleurobrachia, 24 



