INDEX 



abnormis, Ilisha, 446 



Abraham, E. A. V., 3 



abramis, Poecilurichthys, 69, 358 



Abramites hypselonotus, 299 



abramoides, Astyanax, 111, 357, 362; Pcecilurich- 



thys, 54, 69, SO, 89, 91, 97, 114, 355, 357, 361, 362 

 Acanthicus hy.strix, 17, 24, 66, 241 

 Acanthoeharax, 110, 113, 258; microlepis, 70, 81, 97, 



114, 404, 405 

 acanthocheira, Pseudopimelodus, 151, 152 

 Acantliodoras cataphractus, 184, 188 

 Acantliophacelus, 452: bifuicus, 38, 71, 82, 115; 



melanzonus, 32, 71, 82, 92, 115, 457; reticulatus, 



71, 82, 92, 457, 458 

 Acara, see Acaropsis. 

 Acaropsis, 483, 485; bimaculata, 495; ehromys, 499; 



cogiiatus, 485; dimerus, 492; geayi, 493; gronovii, 



495; heckelii, 23, 500; festiva, 498; spuria, 497; 



margarita, 22, 495; inarginata, 495; maronii, 489; 



nassa, 22, 485; pallidas, 492; punctulata, 29, 488, 



51 1 ; punctata, 495; subocularis, 500, 502; tetra- 



merus, 23, 487, 491; unicolor, 486; viridis, 492; 



vittata, 489 

 Acarichthys, 113, 483; heckeli, 83, 89, 500; heckelii, 



23, 72 

 Acentronichthys, 131, 160; leptos, 131; surinam- 



ensis, 64 

 Acestra acus, 252 



Acestrorhamphinse, 258, see Err. el Corr. 

 AcestrorhjTichinae, 97, 99, 406 

 Acestrorhynchus, Key to the Guiana species of, 407 

 Aeestrorhynchus falcatus, 26, 29, 70, 81, 89, 91, 97, 



406, 407; falcirostris, 20, 70, 81, 407, 410; micro- 

 lepis, 20, 26, 70, 81, 88, 97, 407-409; nasutus, 43, 



70, 81, 114,407,411 

 Acharnes speciosus, 22, 510, 511 

 Aehiridae, 99 

 Achiropsis, 526 

 Achirus, 525; fasciatus, 526; lineatus, 73, 84, 98; 



maculipinnis, 527 

 acipenserina, Loricaria, 250 

 acipenserinus, Hemiodon, 250; Hemiodontichthys, 



43, 67, 78, 88, 250; Leptodoras, 191; Oxydoras, 191 

 Acnodon, 257; oHgoeanthus, 70, 81, 388 

 acoupa, Apseudobranchus, 466; Cestreus, 467; 



Cheilodipterus, 466; Cynoscion, 71, 83, 466 

 acus, Acestra, 252; Farlowella, 252 



acuta, Loricaria, 24, 245 



acutidens, Curimatus, 303 



Adontosternarchus, 424 



adspersa, Parapetenia, 494 



adspersus, Pachypops, 477 



/I'lluriclithys bagre, 133; eydouxii, 134; gronovii, 



133; marinus, 134 

 ^quideus. Key to the Guiana species of, 487 

 ^quidens, 107, 483, 500; geayi, 72, 83, 89, 91, 98, 



105, 487, 493, 500; guianensis, 72; maronii, 72, 83, 



92, 487, 489; potaroensis, 54, 72, 83, 91, 93, 98, 

 100, 101, 105, 106, 115, 487, 490; tetramerus, 21, 

 23, 72, 83, 89, 487, 491, 492; vittatus, 106, 487, 

 489, 490 



a'quidens, Atractorcion, 466 



affine, Platystoma, 180 



affinis, Amblydoras, 184; Centropomus, 482; Crea- 

 tochanes, 69, 80, 90, 91, 97, 100, 101, 105, 107, 

 344, 345; Cynocharax, 398; Doras, 65; Leporinus, 

 68; Rteboides, 70; Tetragonopterus, 345 



africanus, Platygaster, 445 



Agamyxis pectinifrons, 184 



Agassiz, Louis, vii 



agassizii, Pimelodus, 168; Tetragonopterus, 322; 

 Vastres, 451 



Ageneiosinffi, 99, 132, 205 



Ageneiosus, Key to the Guiana species of, 204 



Ageneiosus, 132; armatus, 66, 204; axillaris, 66; 

 brevifilis, 18, 28, 35, 66, 77, 91, 92, 204, 205; 

 dentatus, 60, 205; dawalla, 205; guianensis, 37, 

 66, 77, 113, 204; inermis, 66, 205; marmoratus, 66, 

 77, 96, 114, 204, 206; porphyreus, 66; seba;, 205; 

 ucayalensis, 205 



Agmus, 113, 120; lyriformis, 64, 75, 88, 113, 128; 

 scabriceps, 128 



Agoniates, 255; halecinus, 26, 68, 79, 317 



Agonostomus monticola, 463 



Agoniatinae, 255, 317 



aiereba, Trygon, 118 



Ailurichthys bagre, 133; marinus, 134 



Aimara, 413 



albescens, Glanidium, 197 



albicans, Pseudariodes, 173; Sciadeichthys, 64 



albidus, Callichthys, 2, 7; Pimelodus, 145 



albifrons, Gynmotus, 438, 439; Sternarchus, 70, 82, 



93, 97, 438-440 

 albomaculatus, Doras, 65 



555 



