484 
humilis, Pimelodus 
94, 95 
Rhamdia 43, 51, 58, 94, 96 
Hydroeyon 274 
argenteus 259 
brevidens. 260 
falcirostris 275 
microlepis 276 
scomberoides 273 
Hydrocyninae 274 
Hydroeynus 274 
maculatus 274 
scomberoides . oe woo 
HYDROLICUS 259, 272 
copel 45, 273 
pectoralis 45, 49, 273 
scomberoides 45, 48, 49, 56, 273 
Hygrogonus ocellatus 391 
HY PHESSOBRYCON 51, 60, 230 
ellisi eee 220 
innesi . 45, 231 
loretoensis 45, 231 
peruvianus 45, 231 
robustulus 45, 230 
HYPODORAS 129 
forficulatus .44, 129 
HYPOPHTHALMIDAE 62, 140 
HYPOPHTHALMUS 137, 140 
edentatus 44, 47, 49, 54, 140 
edentulus : Sah 141 
nuchalis 121 
perporosus 141 
HYPOPOMUS 313, 314 
brevirostris . 46, 50, 57, 314 
HYPOPTOPOMA .... 200 
bilobatum ae 200 
carinatum 47, 55, 201 
carinatus. . Zl 
gulare .. 44, 200 
joberti 47, 55, 200 
thoracatum 44, 47, 49, 55, 200 
HY POPTOPOMATINAE 199 
hyposticta, Acara 391 
hypostoma, Curimata 
45, 48, 49, 52, 60, 296, 297 
tae hastata 48, 297, 298 
Hypostomatina 181 
HY POSTOMATINAE 182, 283 
HYPOSTOMUS 
183, 184, 185, 187, 188, 191 
aurantiacus 189 
bufonius 65, 197 
calamita : 65 
cirrhosus 196, 199 
commersonii 185 
duodecimalis : 187 
emarginatus 44,47, 49, 54, 184 
erinaceus . 195 
guacarl 184, 185 
multiradiatus 188 
nigricans 189 
pardalis . 188 
phrixosoma 47, 185 
INDEX 
pictus ; 191 
plecostomus ...50, 54, 59, 184 
punctatus 185 
temminckii 198 
vicinus. . ore 189 
hypsauchen, Metynnis 49, 55, 246 
Myletes ; 246 
hypselonotus, Abramites . : 308 
Leporinus 46, 49, 57, 308 
hystrix, Acanthicus 49, 54, 189 
Potamotrygon 46, 48, 53, 83 
Trygon 83 
I 
IGUANODECTES. . . 254 
tenuis , - ..45, 56, 255 
IGUANODECTINAE 254 
ILISHA 334 
abnormis 334 
altamazonica 46, 58, 334 
deaurata 46, 334 
iquitensis 16, 334 
immaculatus, Serrasalmo 240 
IMPARFINIS 96 
bolivianus 50, 53, 59, 97 
piperatus : 96 
imperialis, Acara (Heros) 390 
Esox 382 
Uaru 390 
incae, Orestias 
52, 61, 353, 354, 355, 356, 357 
Pygidium 65 
Trichomycterus. . 153 
innesi, Hyphessobrycon 45, 231 
inornata, Orestias 368 
insidiosus, Stegophilus . 144 
insigne, Cichlasoma . 898 
insignis, Heros 397 
Heros (Heros) 398 
Mesonauta S08 
Prochilodus 46, 57, 310, 311 
Uarus 398 
intermedius, Centromochlus 118 
Stegophilus 158 
ipanquianus, Acrobrycon 
44, 52, 60, 65, 218, 219, 225 
Astyanax 218 
Hemibrycon 216 
Tetragonopterus 218 
iquitensis, Brycon siebenthah 254 
Chalceus macrolepidotus 277 
Chalcinus elongatus 262 
rotundatus 262 
Enegraulis 332 
Holobrycon 260 
Tlisha 46, 334 
Plagioscion auratus 387 
squamosissimum , 386 
iridopsis, Serrasalmo 241 
irwini, Megalodoras 44, 53, 12. 
isacanthus, Auchenipterus. . 120 
Trachycorystes 
ISOSPONDYLI 
ispt.. 
itapicuruensis, Apareiodon 
J 
jamesi, Moenkhausia 
jeanesianus, Liposareus 
Pterygoplichthys 
jelskui, Hemibrycon 
49, 50, 51, 60, 216, ¢ 
Tetragonopterus 
jivaro, Pimelodus 
joanna, Crenicichla 
joberti, Hypoptopoma 
Otocinelus. .. 
johanna, Crenicichla 
46, 48, 50, 
43, 
47, £ 
Crenicichla brasiliensis 
Crenicichla johanna 
Johnius amazonicus 
jordani, Elopomorphus 
juruense, Brachyplatystoma 
Platystoma 
jurupari, Geophagus 
44, 53, 
46, 48, 50, 58, 
jussiei, Orestias 
52, 61, 349, 352, 354, 356, 
jussicul, Orestias 
I 
kneri, Curimata 
Pygidium.. 
Trichomycterus 
knerii, Acestra 
Anacyrtus 
Bunocephalus 
Cynopotamus 
Eucynopotamus 
Farlowella 
Pygidium 
Trichomycterus 
KNODUS 
breviceps 
megalops 
meridae 
moenkhausil 
konopickyi, Loricaria 
Rhineloricaria . 
kutschin 
L 
labialis, Astroblepus 
labrina, Cichla 
Labrus punctatus 
bimaculatus 
lacustris, Astyanax . 
LAEMOLYTA 
taeniata 
laeta, Pyrrhulina. 
laetus, Holotaxis 
295 
157 
157 
214 
48, 50, 53, 
50, 56, 
50, 55, 
51, 54, 
51, 
44, 55, 
50, 59, 
259 
84 
259 
259 
214 
157 
157 
, 234 
), 284 
235 
234 
234 
204 
204 
155 
166 
. 404 
45, 49, 
45, 
395 
396 
220 
302 
302 
264 
. 264 
