650 GENERA 



Page 



omul, Coregonus _. 340 



Oncorhynehus gorbuscha 28 



nerka _ _ _ 1-69 



ontariensis, Leucichthys 477 



Oocystis _ ._ 137-107 



orange-spotted sunfish 134, 160-107 



oseillarioides, Spirulina 152 



Oscillatoria 152 



Isetevirens _ _ 199-252 



osmisco maycus, Pereapsis 160-107 



osscus, Esox ... _ Ill 



Lepisosteus _ ill 



Ostracoda ___ _ 127,137-167 



as food for fishes 135 



Ostrea elongata __ 199-252 



otsego, Salmo- 515 



paddlefish _ _ no 



Palaernonetes exilipes 108, 112, 113, 127, 130 



palmeta, Anguinella _ 199-252 



Pandorina _ 137-167 



Paramecium _ 152 



parvulum, C'losterium 152 



Paspalum distichum _ 108 



patruelis, Gambusia 124 



Heterandria ._ 124 



Pediastrum. __ 137-167 



pelagica, Nereis 199-252 



Pelecopoda .- 199-252 



Perca fla vescens _ 100-167, 1 70-192 



Pereapsis osmisco maycus __ 160-167 



perch, log 160-167 



pirate 125 



sun 130 



trout 160-167 



yellow 160-167, 170-192 



tolerance of high temperatures 170-192 



Percina caprodes zebra. 160-167 



cottogaster _ 160-167 



pi rforatus, Balanus 199-252 



Perigoniinus jonsii 199-252 



pertusa, Lepralia 199-252 



Phaeophyceaj _ _ 199-252 



phyllopods 127 



Physa, sp ._ _ 137-167 



pigmy sunfish _ __ 135 



pike, wall-eyed _ _ ._ 160-167 



pilot. --. - _ 544 



Phnelodus furcatus.. 119 



natalis... _ — 121 



nebulosus.. _ 121 



prornelas 160-167 



pink salmon _ 28 



pirate perch _ 125 



Planaria - 137-167 



plankton, Mississippi River 152 



relation to pollution 152 



platostomus, Lepisosteus 111 



platystomus, Lepisosteus... 113 



Pleurocera acuta.. 137-167 



Pleurosigma 137-167 



acuminatum 152 



attenuatum. 152 



plumosus, Chironomus 145 



Podocory ns sp 199-252 



Poeeilasma crassa 199-252 



poison paints to combat fouling of ships' bottoms 230-234 



L INDEX 



Page 



pollution. - _ 193-252 



Mississippi River 137-167 



pollywogcat 121 



Polyarthra 137-167 



PolychEeta 199-252 



Polyodon spathula 110 



Polysiphonia nigrescens... 199-252 



sp 199-252 



violacea _ 199-252 



Pomotis gulosus _ 130 



heros _ 134 



incisor 132 



Pomoxis 126 



annularis ._ 126,131,160-167 



barberi 126,128,131 



sparoides _ 126,127,160-167 



speroides 131 



portium, Campanularia 199-252 



Potamogeton. 5 



primrose willow 107, 124 



Production and distribution of cod eggs in Massachusetts 



Bay in 1924 and 1925. _ 253-296 



prognathic, Argyrosomns 363,416,449 



Coregonus 416 



Leucichthys- 416 



prornelas, Pinephales 160-167 



Prosopium 643 



description 543 



quadrilaterale _ _ _ 544 



Huron 549 



capture, method of 551 



description 549 



distribution, geographical 550 



food 552 



habits, breeding 552 



movements, seasonal 561 



variations 550 



Michigan 544 



capture, method of 547 



description ^ 544 



distribution, geographical.. 547 



food 548 



habits, breeding 548 



movements, seasonal 547 



value, commercial 549 



variations... _ 546 



Nipigon 555 



description.. . _ 555 



Ontario. 556 



description.. 556 



distribution, geographical 556 



seasonal movements 556 



Superior 553 



description... 553 



distribution, geographical 554 



habits, breeding 555 



movements, seasonal 555 



variations... 553 



synonymy 543 



Protozoa 199-252 



pumpkinseed 160-167,170-192 



punctatus, Ictalurus _ 120 



Silurus 120 



quadrilaterale, Leucichthys 341 



Prosopium. __ 544 



quadrilateralis, Coregonus 543,544 



