256 



STUDIES ON GREG ARINES —WATSON 



[466 



Monocystis acidiae, i6, 19 

 Morica sp., 158 

 Morphology of Gregarines, 27 

 Morphology of the sporonts, 27 

 Movement in Gregarines, 20 

 Mystacida, sp., 201, 211 

 Mystacides sp., 205, 211 



N 

 Necrobia ruficollis, 149 

 Nematoides fusiformis, 206 

 Nemobius sylvestris, 97, 103 

 Nepa sp., 204, 211 

 Nereis sp., 13 

 Nina giardi, 83 

 Nina giardi corsicum, 83 



gracilis, 18, 19 82, 94 



indicia, 84 

 Ninus interstitialis, i8r 

 Nyctobates barbata, 141 



pennsylvanica, 143 

 O 

 Ocypus olens, 138 

 Oedipoda coerulescens, 127 



migratoriae, 96 



stridula, 96 

 Omoplus sp., 163 

 Oocephalus hispanus, 158 

 Opatrum sabulosum, 159 

 Orchesella villosa, 201, 211 

 Orchestia agilis, 13 



littorea, 200, 211 

 Orthomorpha coarctata, 70 



gracilis, 69 



sp., 69 

 Orthopteran Gregarine Parasites, list of, 



94 

 Oryctes nasicornis, 132 



sp., 132 



P 

 Pachygraspus marmoratus, 203, 211 

 Pachyrhina sp., 202 

 Pamphagus sp., 211 

 Panchlora exoleta, 103 

 Parajulus impressus, 12, 70 



sp., 53, 69 



varius, 64 



venustus, 69 

 Parnus sp., 177 

 Passalus cornutus, 175 , 



Peripatus sp., 202, 211 

 Periplaneta americana, 99, in 



orientalis, 99, 105, ill 

 Perophora annectens, 202, 211 

 Petrobius maritimus, 121, 166 

 Phalangida sp., 205, 212 

 Phalangides sp., 205, 212 

 Phalangium sp., 205, 212 

 Phallusia sp., 206, 212 

 Phialis ornata, 148 

 Phialoides ornata, 41, 148, 160 

 Phronima sp., 200, 212 

 Phryganea rhomb., 164 



sp., 204, 206, 212 

 Phyllognathus sp., 132 

 Pileocephalus bergi, 149 



blaberate, 123 



chinensis, 205, 211 

 Pimelia sp., 157 

 Pinnotheres pisum, 203, 212 

 Platycarcinus sp., 202, 212 

 Platynus ruficollis, 192 

 Poecilus cupreus, 173 

 Pogonites capitatus, 164 



crinitus, 165 

 Pollicipes sp., 202, 212 

 Polydesmus complanatus, 52, yy 



dispar, yy 



sp., 60 



virginiensis, 52 

 Polyxenus lagurus, 65 

 Portunus arcuatus, 203, 212 

 Previous Work on Gregarines, 9 

 Psocus sp., 202, 212 

 Pterocephalus Giardi, 83 



Giardi corsicum, 83 



nobilis, 82 

 Pterostichus stygicus, 13, 189, 190 

 Pteotrachea sp., 202, 212 

 Pyxinia crystalligera, 150, 204 



frenzeli, 17, 151 



mobuszi, 18, 151 



rubecula, 150 



R 

 Reduvius personatus, 202, 212 

 Relation of Parasite to Host Tissue, 16 

 Rhizinia oblongata, 159 



sp., 194 



