558 



MEMOIRS OF THE CARNEGIE MUSEUM 



bicirrhosus, Plecostomus, 226 



bicolor, Phractocephalus, 178 



bidorsalis, Pygocentras, 385 



bifasciatus, Hyphessobryeon, 108; Parodon, 67, 78, 



104, 114, 274 

 bifurcus, Acanthophacelus, 38, 71, 82, 115, 457, 459 

 bilineatus, Dorichthys, 462; Hasemania, 108, cf. 



Err. et Corrig.; Pygocentras, 69, 81, 114, 383, 385 

 biloba, Corvina, 475; Pachypops, 475 

 bimaculata, Cichla, 495; Cichlasoma, 22; Heros, 



495; Nannacara, 72, 83, 98, 115, 488; Perca, 495; 



Sciajna, 494, 495 

 bimaeulatum, Cichlasoma, 21, 33, 72, 83, 88, 105, 



494, 495 

 bimaculatus, Astyanax, 101, 359; Charax, 359; 



Heros, 495; Labrus, 495; Poecilurichthys, 26, 33, 



69, 80, 88, 97, 98, 356, 359, 361; Pygocentras, 92; 



Salmo, 359 

 binotatus, Prochilodus, 20, 67 

 Biotodoma, 483, 501; cupido, 72, 83, 89, 98 

 biseriatus, Plecostomus, 227 

 Bivibranchia, 112, 113, 253, 259; protractila, 67, 78, 



114, 259 

 Bivibranchiinffi, 253, 258 

 bleekeri, Apionichthys, 527 

 blennioides, Characidium, 67, 78, 91, 96, 114, 288, 



290 

 blochii, Doras, 188; Paramutana, 173; Pimelodus, 



171 

 Bodianus stellifer, 473 

 Boggiana, 512 

 bono, Pomotis, 21, 492 

 borellii, Nannocharax, 288 

 Boulenger, Dr. G. A., 3 

 boulengeri, Plecostomus, 224 



bovallii, Pcecilocharax, 68, 79, 93, 96, 100, 114, 310 

 Bovallius, Dr. Edwin, 3, 43, 45, 55 

 brachiale, Baiostoma, 526 

 brachiurus, Gymnotus, 425 

 brachyurus, Carapus, 425 

 Braehycalcininse, 97, 99 

 Brachyehalcinus retrospina, 374 

 Brachyglanis, 113, 130; frenata, 54, 64, 75, 91, 92, 



95, 113; melas, 64, 75, 113, 156, 157; phalacra, 54, 



64, 76, 91, 92, 95, 156, 157 

 Brachyplatystoma, 131; vaillanti, 18, 65, 76, 180 

 brachypomus, Chalcinus, 376, 377 

 Brachyrhamphichthys, 432; artedi, 434; breviros- 



tris, 433; muelleri, 434 

 brama, Prochilodus, 67 

 branchicoke, Silurida;, 210 

 branneri, Pcecilia, 458 

 brasiliensis, Erythrinus, 416; Macrodon, 25; Mugil, 



71, S2; Plecostomus, 222, 224 



Brauer, Dr. A., 3 



braueri, Hemiancistrus, 24, 66, 77, 114, 230, 232 



brevi cauda, Erythrinus, 412 



Breviceps bagre, 133 



breviceps, Evorthodus, 73, 84, 92, 525; Rivulus, 53, 

 71, 82, 93, 97, 115, 452, 453 



brevifilis, Ageneiosus, 18, 28, 35, 66, 77, 91, 92, 204, 

 205; Pseudageneiosus, 205 



Breviglanis melas, 157; phalacra, 157 



brevior, Auchenipterus, 66, 77, 92, 96, 113, 202; 

 Chasmocephalus, 162; Chasmocranus, 54, 64, 76, 

 91, 92, 96, 107, 113, 160, 162 



brevirostris, Brachyrhamphichthys, 433; Hypo- 

 pomus, 70, 81, 97, 98, 100, 101, 105, 433; Rhamph- 

 ichthys, 433 



brevis, Centropomus, 482 



brevoortii, 355, 360; Pcecilurichthys, 355, 360; 

 Tetragonopterus, 360 



British Guiana, Alluvial belt of, 5; Boundary 

 surveys, 14; Coast lands, 9; Forest lands and 

 residuary deposits, 11; General account of the 

 expedition to, 30; General geology of, 9; General 

 physical and topographical features of, 5; Geo- 

 graphical distribution of freshwater fishes, 60; 

 Ichthyological position, 62; Mountain ranges, 8; 

 Rivers, 7; Sand and clay belt, 6; Systematic 

 account of the freshwater fishes, 116; Works 

 (early) on fishes, 15 



British Guiana freshwater fishes: changes of color 

 with age, 109; Ecological combinations of species, 

 87; Method of preserving, 58; Mutation, 107; 

 Mutilation, 111; New genera and species, 113; 

 Sexual dimorphism, 112; Summary of families, 

 86; Uimatural natural history, 106; Utilization of 

 different structures to attain the same end, 110 



Brown, C. B., 11, 13, 14 



browni, Mcenkhausia, 68, 79, 91, 93, 97, 100, 101, 

 107, 114, 321, 324 



brunnea, Loricaria, 15, 111 



brunnescens, Doras, 17, 188 



brunneus, Loricariichthys, 15, 67, 77, 88, 96, 245, 

 247, 249, 250, 483, 484 



Brycon, Key to the Guiana species of, 370 



Brycon, 256; falcatus, 18, 26, 69, 80, 97, 370-372; 

 longiceps, 69; lucidus, 69; macrolepidotus, 26, 373; 

 pesu, 26, 369; schomburgkii, 26, 371, 372; sieben- 

 thate, 69, 80, 114,370,372 



Bryconamericus, 256; exodon, 348; hyphesson, 69, 

 80, 93, 97; 114, 349, stramineus, 349 



Bryconinae, 97, 98, 99, 256, 370 



Bryconodon orthotcenia, 370 



bufonius, Pseudopimelodus, 151, 152 



Bunocephalichthys hypsiurus, 64 



Bunoeephalus, Key to the species of, 125 



