INDEX 



577 



temminckianus, Sciadeichthys, 64 



temporale, Cichlasoma, 72 



tenuicauda, Pleeostomus, 227 



tenuis, Chorimyctenis, 288; Iguanodectes, 68, 79, 

 88, 89, 96, 314, 316 



teres, Macrodon, 416 



Tetrabranchus mieropthalmus, 442 



Tetragonopterinae, 96, 99, 108, 255 



Tetragonopterus, Key to the Guiana species of, 319 



Tetragonopterus, 376; affinis, 345; agassui, 322; 

 argenteus, 26, 68, 79, 93, 96, 318, 319; artedii, 320; 

 bartletti, 360; brevoorti, 360; caudomaculatus, 

 346, 360; chalceus, 68, 96, 319, 320; chrysargyreus, 

 323; colletti, 328; compressus, 374; copei, 329; 

 dichrourus, 326; gracilis, 340; grandisquamis, 323, 

 325; gronovii, 359; hauxwellianus, 362; hemi- 

 grammus unilineatus, 333; iacuhiensis, 360; 

 lacustris, 360; latus, 19, 393; lepidurus, 326; 

 linnaei, 359; maculatus, 26; maculatus lacustris, 

 360; melanurus, 26, 346; oligolepis, 321; orbicu- 

 laris, 374; orbignianus, 360; orientalis, 360; 

 ortoni, 320; polylepis, 356; rufipes, 319; sawa, 319; 

 schmardse, 340; schomburgkii, 19, 320, 391; 

 spilurus, 363; taeniatus, 26, 321, 322; unilineatus, 

 333; xinguensis, 320 



tetramerus, Acara, 23; ^Equidens, 21, 23, 72, 83, 89, 

 487, 491, 492; Astronotus, 492 



Tetraodontida;, 84-86, 528 



Tetrodon psittacus, 529 



tetropthahnus, Anableps, 25, 455 



thayeri, Geophagus, 500 



Theraps irregularis, 494 



thoracatum, Hoplosternum, 17, 24, 66, 77, 88, 104, 

 216, 218, 219 



thoracatus, Callichthys, 21S 



Thoracocharax stellatus, 69 



thrissoides, Engraulis, 27, 449; Megalops, 444 



thurni, Rceboides, 70, 81, 114, 399 



Thysanocara cirrhosus, 237 



tibicen, Aspredinichthys, 24, 64, 75, 121, 122; 

 Aspredo, 24, 121, 123; Platystacus, 122 



Tiger-fish, 182 



tigrinum, Hemiplatystoma, 182; Platystoma, 18, 

 23, 183; Pseudoplatystoma, 65 



timucu, Bclone, 461 



toe-roe, Apseudobranchus, 466; Otolithus, 22, 466 



Tometes trilobatus, 393 



Tomeurina?, 452, 459 



Tomeurus, 112, 113, 452; gracilis, 71, 82, 92, 115, 460 



torquatus, Myloplus, 70 



Trachelyopterus coriaceus, 65 



Trachycorystes, Key to the species of, 198 



Trachycorystes, 132; ceratophysus, 65; galeatus, 24, 

 65, 77, 91, 104, 198, 199; glaber, 65, 77, 198; 



obscurus, 29, 65, 77, 111, 198, 200; robustus, 199; 



typus, 198 

 trachystetha, Steindachnerina, 263 

 trahira, Erythrinus, 415; Macrodon, 25, 413, 415 

 transversalis, Synbranchus, 443 

 Trichomycteridae, 210 

 trichomycteriformes, Siluroidci, 210 

 Trichomycterus fuscum, 212; nigricans, 211 

 tricolor, Polycentrus, 522 

 trifasciata, Cichla, 509; Cychla, 20 

 trifasciatus, Nannostomus, 282, 284; Poccilobrycon, 



67, 79, 88, 89, 107, 283, 286 

 trifilis, Micropogon, 22, 474; Pachypops, 72, 474 

 trilobatus, Myletes, 394; Tometes, 393 

 trimaculatus, Anostomus, 68, 79, 295, 297; Pithe- 



cocharax, 296; Schizodon, 295 

 Trinectes scabra, 526 

 Triportheus flavus, 376 

 Triurobrycon lundii, 370 

 truncatum, Platystoma, 183 

 Trutta dentata, 316 

 Trygon aiereba, 118; garrapa, 21, 28, 117; henlei, 



117; hystrix, 21, 116; muelleri, 117; orbicularis, 



21, 28; strongylopterus, 21, 28, 118 

 tudes, Sphyrna, 28 

 Tumany, 300 



tumifrons, Sternopygus, 430 

 Tylobronchus, 113, 253, 271; maculosus, 67, 78, 96, 



114, 272 

 Tylosurus almeida, 23, 71, 461; guianensis, 23, 461; 



microps, 71 

 Tympanopleura, 113, 132; piperata, 66, 77, 92, 113, 



203 

 typus, Loricariichthys, 67; Pinirampus, 149; Trachy- 

 corystes, 198 



Uaru centrarchoides, 497 



ucayalensis, Ageneiosus, 205; Chromys, 484 



Umbrina furnieri, 478 



undecimalis, Centropomus, 22, 72, 83, 481, 482; 



Macrocephalus, 481; Oxylabrax, 4S1; Platy- 



cephalus, 481; Sciaena, 481 

 undecim-radiatus, Centropomus, 482 

 undulata, Perca, 478 



undulatus, Micropogon, 47S; Serrasalmo, 19 

 Unibranchapertura grisea, 443; immaculata, 443; 



lineata, 443; marmorata, 442, 443 

 unicolor, Apionichthys, 73, 84, 527 

 unifasciatus, Pcccilobrycon, 286 

 unilineatus, Hemigrammus, 68, 79, 92; Pcecilurich- 



thys, 332 ; Tetragonopterus, 333 

 unimaculatus, Hemiodus, 25, 275, 277 

 uniocellata, Chromys, 492 

 unita'niata, Piabucina, 67 



