422
SUBJECT INDEX
Parasitoids, 49
Parenchyma, trematodes, 86
Pathogenesis
influence of mechanical factors, 108,
influence of physiological factors,
Pathology, 95, 103, 104, 105, 113, 117,
111, 117
108, 110, 111, 117
128, 129
trematode-caused, 105, 117
Pearl formation, 73, 213, 214, 223, 224,
Penshell, 46
Penetration glands, miracidial, 57
Penis, reduction of, 123, 124
Pericardial fluid, molluscan, 75
Pericardium, 79
Periostracum, 22
Periwinkles, 126, 136
Phagocytes (amoebocytes, leucocytes),
255, 256
60, 61, 62, 65, 68, 111, 156, 157
ineffectiveness of, 63
Phagocytosis, 60, 61, 63, 64, 71, 72, 75,
76, 133, 141
Phoresis, 4, 7, 8, 17, 56
Phosphatases, 87
Phosphorylative transport, 83
Phototaxis, 28, 37, 42, 47, 48, 288, 289,
Planula larva, 18
Plasma, molluscan, 40, 41, 43, 57, 58,
59, 61, 75, 76, 78, 79, 88, 89, 98,
107, 237
electrophoresis of, 75
172, 173, 174
330
Plasmodia, 162, 163, 165, 167, 169, 171,
Plerocercoid, 257, 259, 260
Polychaetes, 19, 23, 49, 73, 273, 274,
275, 278
Polyclads, 200-202
Poriferans, 276
Post-mortem changes, 129
Precipitins, 74, 75
Predation, 4, 8, 9, 49, 199, 260, 263
Predatory molluscs, 12
Pre-hard stages of Pinnotheres, 317,
330
Prezoeae, 329
Primite, 152
Polyps, 21
Procercoid, 257
Proline, 89
Properdin, 75
Proteins, 81, 88, 89, 97, 98
Proteolytic enzymes, in sea water, 43
Protozoa, 84, 97, 135-197,
Public health, 10, 12, 136, 239, 255
Puerto Rico, 20, 65, 199
Puget Sound, 20, 51, 100, 130, 259 291,
Pumping of oysters, 271
Pustules on oysters, 198
Pyramidellids, detached from hosts,
276, 281
Pyruvic acid, 81
334
Q
Quahaug, southern, 135
Quahaugs, 135, 238, 270, 294
R
Rabbits, 14
Rats, 14, 122, 245, 270
Rays, 265, 268
Rediae, 82, 83, 86, 89, 104, 106, 109,
110, 111, 113, 116, 127, 202, 237,
242, 245, 246, 248, 253
microvilli of, 83
Reducing sugars, 82
Regeneration, hepatopancreatic cells,
Reproductive rate of Hexamita, 140
Reproductive system, site of paraResistance, 54, 55
acquired, 55, 76
behavioral, 55, 132
genetical, 55
innate, 55
mechanical, 55, 132
physiological, 55, 115
Resorption of parasites, 70
Respiratory rate, parasitized snails, 105
Reticulum, 70, 103
Rhabdocoels, 202, 254
Rhode Island, 118, 182, 208, 209, 227,
Rhombogens, 8
107, 110
sitization, 108, 119
228, 272, 300, 301, 325, 335
SUBJECT INDEX
Parasitoids, 49
Parenchyma, trematodes, 86
Pathogenesis
influence of mechanical factors, 108,
influence of physiological factors,
Pathology, 95, 103, 104, 105, 113, 117,
111, 117
108, 110, 111, 117
128, 129
trematode-caused, 105, 117
Pearl formation, 73, 213, 214, 223, 224,
Penshell, 46
Penetration glands, miracidial, 57
Penis, reduction of, 123, 124
Pericardial fluid, molluscan, 75
Pericardium, 79
Periostracum, 22
Periwinkles, 126, 136
Phagocytes (amoebocytes, leucocytes),
255, 256
60, 61, 62, 65, 68, 111, 156, 157
ineffectiveness of, 63
Phagocytosis, 60, 61, 63, 64, 71, 72, 75,
76, 133, 141
Phoresis, 4, 7, 8, 17, 56
Phosphatases, 87
Phosphorylative transport, 83
Phototaxis, 28, 37, 42, 47, 48, 288, 289,
Planula larva, 18
Plasma, molluscan, 40, 41, 43, 57, 58,
59, 61, 75, 76, 78, 79, 88, 89, 98,
107, 237
electrophoresis of, 75
172, 173, 174
330
Plasmodia, 162, 163, 165, 167, 169, 171,
Plerocercoid, 257, 259, 260
Polychaetes, 19, 23, 49, 73, 273, 274,
275, 278
Polyclads, 200-202
Poriferans, 276
Post-mortem changes, 129
Precipitins, 74, 75
Predation, 4, 8, 9, 49, 199, 260, 263
Predatory molluscs, 12
Pre-hard stages of Pinnotheres, 317,
330
Prezoeae, 329
Primite, 152
Polyps, 21
Procercoid, 257
Proline, 89
Properdin, 75
Proteins, 81, 88, 89, 97, 98
Proteolytic enzymes, in sea water, 43
Protozoa, 84, 97, 135-197,
Public health, 10, 12, 136, 239, 255
Puerto Rico, 20, 65, 199
Puget Sound, 20, 51, 100, 130, 259 291,
Pumping of oysters, 271
Pustules on oysters, 198
Pyramidellids, detached from hosts,
276, 281
Pyruvic acid, 81
334
Q
Quahaug, southern, 135
Quahaugs, 135, 238, 270, 294
R
Rabbits, 14
Rats, 14, 122, 245, 270
Rays, 265, 268
Rediae, 82, 83, 86, 89, 104, 106, 109,
110, 111, 113, 116, 127, 202, 237,
242, 245, 246, 248, 253
microvilli of, 83
Reducing sugars, 82
Regeneration, hepatopancreatic cells,
Reproductive rate of Hexamita, 140
Reproductive system, site of paraResistance, 54, 55
acquired, 55, 76
behavioral, 55, 132
genetical, 55
innate, 55
mechanical, 55, 132
physiological, 55, 115
Resorption of parasites, 70
Respiratory rate, parasitized snails, 105
Reticulum, 70, 103
Rhabdocoels, 202, 254
Rhode Island, 118, 182, 208, 209, 227,
Rhombogens, 8
107, 110
sitization, 108, 119
228, 272, 300, 301, 325, 335