488 
ORESTIATINAE 346 
Orestiinae 346 
orestis, Oxydoras 135 
ornata, Pimelodus. ... 103 
ornatus, Pimelodus 
48, 50, 53, 59, 103 
oroyae, Pygidium 51, 59. 754, 156 
orthaecanthus, Opsodoras 
44, 47, 134, 135 
orthosternarchus . . 318 
ortoni, Sorubimichthys dl 
ortonianus, Prochilodus 46, 310 
ortonii, Orestias 371 
Tetragonopterus 237 
osgoodi, Bryconamericus 
49, 51, 60, 225 
OSTEOGASTER 181 
splendens......... 44, 54, 187 
OSTEOGLOSSIDAE 335, 336 
OSTEOGLOSSUM. RAG Soeriee epr! 
bicirrhosum. . .46, 48, 50, 58, 335 
osteoglossum, Maius 338 
Ostracion tetraodon. . 409 
OTHONOCHEIRODUS .64, 215 
eigenmanni.. 51, 60, 215 
OTOCINCLUS. . . 201 
affinis. . 202 
joberti 200 
macrospilus .. 44, 201 
vestitus ..44, 201 
ovalis, Moenkhausia 45,49, 234 
Tetragonopterus . 234 
owenil, Orestias 
52, 61, 352,354, 356, 371, 376 
Oxalis . 30 
oxydoras. .. 130, 132 
acipenserinus 136 
humeralis. . 134 
nattereri... 131 
niger... 130 
orestis 135 
stiibelii 135 
oxyloricaria 211, 212 
brevirostris 212 
guentheri 213 
rostrata ; 213 
oxyrhynchus, Sternarchorhynchus 
46, 50, 57, 318, 319 
Sternarchus 318 
P 
pachacuti, Bryconamericus 
52, 60, 224 
Pachyurus squamosissimus. 386 
paco, pacu 
250, ¢ 
pacu, Myleus : 247 
paiche arg, 24, c00s-005 
paipayensis, Hemigrammus 
50, 60, 230 
paleatus, Callichthys. . 175 
Corydoras. . 44, 54, 175 
INDEX 
palometa, palometo 
207, 250, 251, 252, 359 
pana 239, 242, 243 
PANAQUE... tax 186 
dentex..... 49, 186 
pantherinus, Rhamphichthys.... 328 
PARAGONIATES...... : ... 870 
alburnus ; 45, 50, 56, 270 
Parahemiodon chanjoo 204 
spixil mE 200) 
typus 204 
parallelus, Opsodoras 44, 134 
PARANCISTRUS. 188, 190 
aurantiacus 47, 189 
nigricans ; 189 
pardalis, Hypostomus 188 
Liposarcus : 188 
Plecostomus (Liposarcus) 188 
Pterygoplichthys 188 
pardus, Trichomycterus : . 153 
PAREIODON tae Ole lOO. 
microps 44,157, 158 
PARIOLIUS 150 
armillatus 44, 150 
parma, Myletes 251 
Myleus 251 
Myloplus 252 
PARODON 285 
buckleyi 50, 286 
piracicabae . . 286 
suborbitalis 285 
PARODONTINAE 285 
parvus, Rhamdia 51 
Pastinaca humboldtii 83 
pauciradiata, Anacyrtis. . 256 
Charax 15, 50, 256 
Paullinia pinnata _ 30 
payshi 339 
pectinatus, Astyanax 219 
Hemibrycon . 219 
Phenacogaster. 44, 55, 219 
Tetragonopterus 219 
pectinifrons, Agamyxis 44, 126 
Doras . mins . 126 
pectoralis, Cynodon eee) 
Hydrolicus 45, 49, 273 
pectorosus, Gasteropelecus 269 
Thoracocharax 45, 48, 269 
peje-perro. . 259, 272 
pejerrey 25, 357 
pellegrini, Plecostomus. . 5 olfsB} 
Pellegrinina AE 
heterolepis 277 
Pellona 334 
altamazonica . 334 
pentlandi, Orestias....52, 61, 71, 349, 
350, 351, 352, 354, 356, 357, 359, 360 
Pimelodus 96 
Rhamdia ee oe A 5ON OG: 
Trichomycterus 153 
perat eerie 239, 242 
Perea saxatilis. . . 404 
bimaculata. . ; 396 
perporosus, Hypophthalmus. . 141 
peruana, Piabina 226 
Pimelodella.... 47, 101 
peruanus, Aplocheilus. . 346 
Arges fe : Aap 166 
Astroblepus.... ..50, 51, 59, 166 
Bryconamericus. 225 
Chasmocranus 43, 91 
Creagrutus .. 49, 51, 52, 60, 226 
Cyclopium oreo. ts 
Duopalatinus ..47, 107 
Rivulus. .. . 60, 346 
PERUGIA SAicatt Bee lh 
agassiZil .44, 47, 48, 53, 117 
perugiae, Centromochlus .50, 118 
peruvianus, Hyphessobrycon. 45, 231 
petleyi, Loricaria 47, 208 
Rhine lONiCaMlalan see eae 208 
PHENACOGASTER. . 219 
bairdi . » 219 
bondi. 232 
pectinatus 44, 55, 219 
phoenicopterus, Astyanax. 224 
Bryconamericus....... 45, 224 
Tetragonopterus 224 
PHRACTOCEPHALUS): aadas atuaaine 110 
bicolor . 110 
hemiliopterus 438, 53, 110 
phrixosoma, Hypostomus 47, 185 
Plecostomus . 185 
PHY SOPYRIS 3. osc cota nee eo eee 129 
Lyra. . : 44, 129 
Piabina peruana 226 
Prd bucanieivs x2 eases ae ae 255 
argentina ; eae 
PIABUCINA J2tO, 200 20O eto 
elongata. . 50, 51, 278 
erythrinoides . Reena Phe} 
unitaeniata. . 50, 56, 278 
PIABUCUS aoa te) 
dentatus 45, 56, 255 
piabuques, les . 257 
PIARCTUS : ' Joyo Rienea ne 40h 
nigripinnis. . 45, 56, 247, 248 
pictus, Ancistrus (Lasiancistrus) 191 
BaGTrus:;viceein one anh errs 111 
Hypostomus pees, wep 
Lasiancistrus AT LOL 
Leporinus.... nec Pe US 
Pimelodus 43, 47, 48, 53, 102, 104 
Trichomycterus...... 153 
Pimelodas lateristriga. . Tee 99, 
PIMELODELLA... . .65, 98, 107 
boliviana...... 47, 53, 100 
buekleyi. . 43, 48, 50, 53, 99 
cristata, cristatus 43, 48, 53, 100 
cyanostigma 43, 101 
gracilis . . 60, 53, 59, 102 
hartil 101 
Iharitiwelllipeveentne sce cee eee 47, 99 
hasemani.... ..43, 48, 53, 100 
