506 



CALIFORNIA ACADEMY OF SCIENCES. 



rivnlatum 327,330 sicyephorus It 



rivulatus 326, 3:50 Siluridffi !', ii* 



robinii (Hypostomus) 412 Siluridse anomalopteraa :<11 



(Plecostoraus) 400, 412 J Siluroidei 28 



robustus (Auchenipterus) 281 : Siluroides 28,351 



(Trachycorystes) 274,281 ! Sorubim 101,207,212 



rostrata 362,366 j Sorubimichthys 101,214 



rousseauxii (Bagrus) 198 spatula (Platystoma) 214,217 



(Brachyplatystoma) ...195198 (Sorubimichthys) 215,217 



rugtspinis (Arius) 83 spectrum... 22 



(Galeichthys) 83 spiniger....". 403 



(Tachisurus) 48, 83 spinosissimus (Doras) 223, 235 



sabalo 348 (Plecostomus) 397, 400 



salvini 475 spinosus (Chretostomus) 418 



sapipoca 128 (Hemiancistrus) 418 



sapo (Pimelodus) 130 (Hypostomus) 418 



(Rbamdia) 120,131 spixii (Arius) 88 



scabriceps (Bunocephalus) 14,15 (Hypophthalmus) 313 



(Plecostomus commersonii) (Loricaria) 363, 372 



397, 405 (Pimelodus) 88 



scaphirhynchus (Ancistrus) 419 (Tachisurus) 49,88 



(Chaetostomus) 439 splendens (Callichthys) 468 



(Hemiancistrus) 419 (Corydoras) 465,468 



schomburgkii (Chaetostomus) 420 squalinum 400 



(Hemiancistrus) 420 squalus 26 



(Rhamdia) 118,122 stannii 442 



Sciadeichthys 29, 42, 43, 190 stegelichii 124 



Sciadeoides 190, 191 Stegophilinse 11,317,341 



Sciades 42,100,190 Stegopbilus 317,342 



Scleromystax 450 Pteindachneri 267,268 



scolapacina. 358 Steindachneria 100,202 



scopularius 400 stenopeltis (Corydoras) 255 



serophus 430 (Doras) 250,255 



sebse (Ageneiosus) 309 ; (Hemidoras) 252,255,256 



(Pimelodus) 123, 126, 128 (Oxydoras) 255 



(Rhamdia) 119,123 stigrnaticus 445,446 



seemanni (Arius) 78 striatulus (Aucheuipterus) 277 



(Galeichthys) 78 (Trachycorystes) 274, 277 



(Tacbisurus) 47,78 stricticassis (Arius) 68 



Selenaspis 42,45 (Tachisurus'graiidicassis) 46,68 



sellonis 127 strigilata 368 



seminudus , 338, 409 strigosa 417 



semiscutatus (Brochis) 464 stiibellii (Hemidoras) 252,257 



(Corydoras) 464 (Loricaria) 363, 370 



sericeus 443 (Oxydoras) 257 



serratus (Ohielostomus) 417 sturio (Platystoma) ...218 



(Hemiancistrus) 417 j (Ptatystomatichthys) 218 



(Hypostoraus) 417 j Sturisoma 360, 362 



(Pseudacanthicus) 417 Stygogenes 349 



petifera 382 subcarmatus ...403 



setosus (Chictostonuis) 435 subulatus 456 



(Pseudancistrus) . 4;>5 suloatus 458 



nex-cirrbis 22 suriuameusis (Acentronichthys). . .145, 146 



sextentaculatus 127 (Arius) 81 



sicuephorus (Aspredo) 24 (Galeichthys) 81 



tl'latystacus) 21,24 (Heptapterus) 146 



