574 



MEMOIRS OF THE CARNEGIE MUSEUM 



Rhamdella, 131; eriarcha, 167; foina, 24, 05, 76, 92, 



167; notata, 65 

 Rhamdia, Key to the Guiana species of, 162 

 Rhamdia, 131; arekaima, 2, 18, 28, 65, 76, 162, 168; 



holomelas, 29, 35, 65, 162, 166; laukidi, 2, 65, 76; 



multiradiatus, 65, 166; quelen, 65, 76, 92, 96, 100, 



101, 104, 162, 163, 166; sebse, 23, 24, 65, 76, 88, 



89, 106, 162, 164, 165 

 Rhamdiaglanis, 131 

 Rhamphichthys, 43, 423, 436; artedi, 434; brevi- 



rostris, 433; elegans, 432; marmoratus, 70; 



rostratus, 27, 70, 82, 97; schneideri, 435; schom- 



burgkii, 435 

 Rhamphosternarchus, 437 

 Rhaphiodon vulpinus, 70 

 Rhinelepis, 229 

 RUinodoras niger, 189, 190; prionomus, 190; teffe- 



anus, 190 

 Rhinosardinia, 113, 444; serrata, 71, 82, 92, 115, 445 

 Rhizophora mangle, 6 

 rhombeus, Gerres, 22; Salmo, 380, 382; Serrasalmo, 



27, 69, 81, 97, 110 

 rhomboidalis, Myletes, 392; Myleus, 89, 393; 



Myloplus, 27, 70, 81, 90, 91, 97, 109, 110, 391, 392; 



Otolithus, 466 

 riddlei, Hemigrammus, 340; Holopristis, 329, 330; 



Hyphessobrycon, 43, 69, 80, 338, 340; Pristella, 



33, 68, 79, 88, 92, 330, 331 

 rigidus, Pimelodus, 173 

 Rineloricaria, 244; lima, 244 

 Rivulus, Key to the Guiana species of, 452 

 Rivulus, 52, 103, 112, 451; breviceps, 53, 71, 82, 93, 



97, 115, 452, 453; cylindraceus, 452; frenatus, 43^ 



82, 115, 453, 455; geayi, 71; holmia;, 71, 82, 93, 



97, 100, 101, 115, 452, 453; lanceolatus, 43, 71, 



82, 115, 453, 455; micropus, 71; obscurus, 71; 



stagnatus, 71, 82, 115, 453, 454; urophthalmus, 71 ; 



waimacui, 53, 71, 82, 91, 93, 97, 115, 452, 454 

 robalito, Centropomus, 4S2 

 rubella, Sciama, 473 

 robinii, Hypostomus, 223 

 robustus, Auchenipterus, 199; Cha>tobranchus, 484; 



Trachycorystes, 199 

 rodwayi, Hemigrammus, 33, 68, 79, 88, 92, 114, 332, 



334 

 Rceboides, 257; affinis, 70; guatemalensis, 398; 



microlepis, 70, 398; thurni, 70, 81, 114, 399 

 ronchus, Bairdiella, 72 

 rosaceus, Hyphessobrycon, 43, 69, 80, 89, 114, 338, 



339 

 rosse, Joinvillia, 363 

 rostratus, Acaropsis, 486; Carapus, 435; Centrar- 



chus, 21; Gymnotus, 435; Rhamphichthys, 27, 70, 



82, 97, 435 



rotundatus, Chalceus, 18, 26, 377; Chalcinus, 18, 

 69, 81, 107, 377 



rubella, Scia>na, 20 



rubripinnis, Myletes, 27, 391; Myleus, 391; Mylo- 

 plus, 27, 70, 81, 97, 391 



rubro-ocellatus, CychJa, 20 



rubrota>niatus, Prochilodus, 20, 28, 67, 78, 96, 270, 

 271 



rufipes, Tetragonopterus, 319 



rugispinis, Arius, 147; Galeichthys, 147; Hexane- 

 matichthys, 64, 75, 110, 147 ; Tachisutus, 147 



rupununi, Charax, 70, 81, 93, 107, 114, 402; Cychla. 

 20 



rutilans, Cychla, 518 



rutiloides, Curimatus, 268 



saccifera, Manicaria, 6 



sachsi, Sternarchogiton, 70 



Sageniehthys ancylodon, 71, 83, 469 



saliens, Chorinemus, 22 



Salminus hilarii, 70 



Salmo anostomus, 294: argent inus, 316; aureus, 3S0; 

 bimaculatus, 359; cyprionoides, 263; edentulus, 

 263; falcatus, 406, 407; fasciatus, 307; friderici, 

 302; gateropelecus, 3S0; gibbosus, 400; mela- 

 nurus, 343, 346; rhombeus, 380, 382 



salmoneus, Anostomus, 294; Cyprinus, 420; Ery- 

 thrinus, 421; Hetererythrinus, 420 



salvus, Erythrinus, 419 



sanguinolentus, Carapus, 427 



Sardinella, 445 



Satanoperca, 505; jurupari, 505; leucostieta, 505; 

 macrolepis, 505 



Saurauwari, 187 



saurus, Elops, 27 



sawa, Tetragonopterus, 319 



Saw-fish, 15 



saxatilis, Crenicichla, 20, 23, 72, 83, 89, 106, 513; 

 Perca, 513; Spams, 513 



scaber, Centropomus, 4S2 



scabra, Trinectes, 526 



scabriceps, Agmus, 128 



scalare, Pterophyllum, 73, 83, 521 



sealaris, Platax, 521; Pterophyllum, 521 



scapularis, Pygocentrus, 69, 81, 383, 385; Serra- 

 salmo, 385 



Scarus pavonius, 514 



Schizodon, 254; fasciatus, 20, 25, 68, 79, 93, 96, 295, 

 297 



Schizodontopsis, 254; laticeps, 68, 79, 93, 114, 299; 

 tseniatus, 298 



schmardse, Tetragonopterus, 340 



schneideri, Rhamphichthys, 435 



Schomburgk, Richard, 16, 21; Robert, 2, 15 



