INDEX 



573 



Prionodon, 28 



prionomus, Rhinodoras, 190 



Pristella, 255, 329; aubynei, 35, 68, 79, 92, 114, 330; 



riddlei, 33, 68, 79, 88, 92, 330, 331 

 Pristigaster cayanus, 71 

 Pristis pectinatus, 28 

 Prochilodinae, 96, 99, 270 

 Proehilodus, 42, 253; argenteus, 271; binotatus, 20, 



67; brama, 67; insignis, 20, 67; laticeps, 67; 



lineatus, 271; niaripicru, 67, 78, 104, 114, 271; 



nigricans, 270; rubrotsniatus, 20, 28, 67, 78, 96, 



270, 271 

 productus, Engraulis, 449 

 profunda, Mcenkhausia, 68, 79, 114, 321 

 proiips, Arius, 136; Bagrus, 23; Netuma, 136; 



Sciadeichthys, 23, 64, 75, 106, 110, 135, 136, 137; 



Selenaspis, 139; Tachisurus, 137 

 proteropodes, Silurida?, 214 

 protractila, Bivibranchia, 67, 78, 114, 259 

 Psectrogaster, 253; ciliata, 268 

 Pseudanthicus fordi, 66; serratus, 66 

 Pseudancistrus, Key to the Guiana species of, 233 

 Pseudancistrus, 222; barbatus, 17, 66, 77, 113, 233; 



depressus, 66; giintheri, 66, 233, 235; guttatus, 



233; nigrescens, 54, 66, 77, 91, 92, 96, 114, 233, 234 

 Pseudarioides, 171; albicans, 173; clarias, 172 

 Pseudauchenipterus, 132; cajruleus, 91; guppyi, 201; 



nodosus, 24, 65, 77, 200, 201 

 Pseudageneiosus brevifilis, 205; davalla, 205 

 Pseudocallophysus ctenodus, 148 

 Pseudodoras niger, 189 

 Pseudohemiodon platycephalus, 243 

 Pseudohypophthalmus fimbriates, 209 

 Pseudopimelodus, 130; acanthochira, 152; albo- 



marginatus, 64, 75, 92, 95, 113, 152, 153; bufonius, 



152; raninus, 64, 75, 152, 154; villosus, 23, 64, 95, 



113, 151, 152 

 Pseudoplatystoma, 43, 132; fasciatum, 18, 23, 65, 



76, 183; tigrinum, 65 

 Pseudorhamdia, 171; ascita, 173; lateristriga, 167; 



ornata, 175; piscatrix, 173 

 psittacus, Batrachops, 528; Chelichthys, 28, 529; 



Cichlasoma, 72; Colomesus, 2S, 73, 84, 529; 



Tetrodon, 529 

 Pterengraulis atherinoides, 71 

 Pterodoras granulosus, 184, 185 

 pteroides, Characidium, 68, 78, 89, 107, 114, 288, 292 

 Pterophyllum, 483, 520; altum, 73; scalare, 73, 83, 



521 

 Pterygoplichthys, 221; duodecimalis, 77, 227; multi- 



radiatus, 15, 66, 77, 228 

 pulcher, Microglanis, 155 



punctata, Chromys, 492; Hopliosoma, 219, 220 

 punctatum, Hypostoma, 17 



punctatus, Auchenipterus, 199; Ca>notropus, 273; 

 Cataphractus, 220; Chelichthys, 28; Cbilodus, 25, 

 67, 78, 88, 89, 104, 273; Corydoras, 57, 66, 77, 89, 

 96, 219, 220; Labrus, 495; Serrasalmo, 19, 386 



punctifer, Platystoma, 183 



punctulata, Acara, 29, 511; Crenicara, 29, 43, 72, 83, 

 89,511 



punctulatus, Batrachops, 72, 83, 93, 512; Platyne- 

 matichthys, 65 



Punkay, 353 



pusillus, Aphyocharax, 312 



putaol, Gymnotus, 425 



Pygidiidop, Key to the Guiana genera of, 210 



Pygidiidae, 84, 85, 86, 89, 91, 92, 96, 99, 119, 210 



Pygidiina?, 96, 99, 210, 211 



Pygidium, Key to the Guiana species, 212 



Pygidium, 87, 210, 211; conradi, 66, 77, 91, 92, 96, 

 114, 212; fuscum, 212; gracilior, 66, 77, 92, 96, 

 100, 101, 114, 212, 213; guianense, 66, 77, 92, 96, 

 100, 101, 114, 212;tcenia, 66 



Pygocentrus, Key to the Guiana species of, 3S3 



Pygocentrus, 256; bidorsalis, 385; bilineatus, 69, 81, 

 114, 3S3, 395; bimaculatus, 92; nattered, 69; niger, 

 19, 26, 69, 81, 383, 384; nigricans, 26; piraya, 16, 



25, 26, 69, 81, 93, 383, 384; scapularis, 69, 81, 383, 

 385; stagnatilis, 69 



Pygopristis, 256 (Cf. Err. et Corr); denticulatus, 19, 



26, 27, 81, 385; fumarius, 27, 385, 386 

 Pyrrhulina, 254, 278; filamentosa, 67, 78, 88, 89, 96, 



100, 101, 104,279 

 Pyrrhulininae, 96, 99, 278 



quadrimaculatus, Hemiodus, 67, 78, 93, 96, 275; 



Pimelodus, 171 

 quadriscutis, Arius, 138; Netuma, 138 

 Quavina quavina, 83 

 quelen, Pimelodus, 163; Rhamdia, 65, 76, 92, 96, 



100, 101, 104, 162, 163, 166 



raninus, Batrachoglanis, 151, 154, 155; Pimelodus, 

 23, 151, 152, 154; Pseudopimelodus, 64, 75, 152, 

 154 



rastrifer, Stellifer, 83, 473; Stelliferus, 72, 474 



Rays, Whip-tailed, 116 



regalis, Cynoscion, 466; Johnius, 466 



Regan, Dr. C. T., 3 



Reganella, 222 



regia, Victoria, 32 



reinhardti, Stegophilus, 213 



reticulata, Crenicichla, 512; Pcecilia, 458 



reticulatus, Acanthophacelus, 71, 82, 92, 457, 458; 

 Batrachops, 512; Girardinus, 458 



Retroculus, 500 



retrospina, Brachychalcinus, 374 



