572 



MEMOIRS OF THE CARNEGIE MUSEUM 



Pinirampus, 130; pirinampu, 18, 75, 149; typus, 149 



pinnatus, Deuterodon, 54, 69, 80, 90, 91, 93, 97, 

 114, 363, 365 



Pipe-fishes, 462 



piperata, Tympanopleura, 66, 77, 92, 113, 203 



Piramutana macrospila, 173 



piranha, Serrasalmo, 19, 384 



pirarucu, Sudis, 451 



piraya, Pygocentrus, 19, 25, 26, 69, 81, 93, 383, 384; 

 Serrasalmo, 383, 384 



pirinampu, Pimelodus, 18; Pinirampus, 18, 149; 

 Pirinampus, 64 



Pirinampus pirinampu, 64 



pirinampus, Pimelodus, 149 



piscatrix, Pseudorhamdia, 173 



pisonis, Eleotris, 524 



Pithecocharax, 294; trimaculatus, 296 



Plagioscion, 465; auratus, 72, 83, 472; heterolepis, 72; 

 squamosissimus, 20, 72, S3, 471, 472; surinamensis, 

 72 



planiceps, Platystoma, 18; Sorubimichthys, 65 



Platax scalaris, 521 



Plataxoides dumerilii, 521 



platycephalum, Megalonema, 64, 75, 95, 113, 150 



Platycephalus undecimalis, 481 



platyeephalus, Pseudohemiodon, 243 



Platydoras eostatus, 184, 186 



Platygaster africanus, 445; flavipinnis, 446; mue.ro- 

 natus, 447 



Platynematichthys punctulatus, 65 



platyrhynchos, Hemisorubim, 23, 65, 1S1; Platy- 

 stoma, 181 



platyrhynchus, Hemisorubim, 181; Platystoma, 23 



Platystacus, 120, 124; aspredo, 123; cotylephorus, 

 64, 75, 124, 125; filamentosus, 121; tevis, 123 

 nematophorus, 64; tibicen, 122; verrucosus, 125 



Platystoma, 179, 182; arfine, 180; fasciatum, 183 

 planiceps, 18; platyrhynchos, 23, 181; punctifer 

 183; tigrinum, 18, 23, 1S3; truncatum, 183 

 vaillanti, 18, 180 



platystoma, Harttia, 67, 78, 251; Loricaria, 251 

 Loricariichthys, 89; Oxyloricaria, 251 



platyura, Loricaria, 24, 248, 249 ; Loricariichthys, 24 



platyurus, Loricariichthys, 67, 77, 93, 96, 245, 248 



plazaii, Vandellia, 66 



Plecostominse, 54, 96, 99, 221 



Plecostomus, Key to the Guiana species of, 223 



Plecostomus, 103, 221; annae, 227; barbatus, 233; 

 bicirrhosus, 226; biseriatus, 227; brasiliensis, 222 

 224; boulengeri, 224; commersonii, 226; emargi- 

 natus, 17, 28, 66, 77, 226; flavus, 223; guttatus, 

 233, 235; hemiurus, 66, 88, 91, 96, 104, 114, 224, 

 225; horridus, 227; plecostomus, 17,28, 66,77,91, 

 222, 223, 225; scopularius, 227; seminudus, 224; 



tenuicauda, 227; verres, 24, 66, 226; villarsi, 227; 

 virescens, 227; watwata, 15, 32, 77, 107, 225 



plecostomus, Hypostoma, 17; Hypostomus, 28, 222, 

 225; Loricaria, 223; Plecostomus, 66 



Plectognathi, 119, 528 



Pleuronectes fuscus subrotundus glaber, 526; line- 

 atus, 526 



plicatus, Anostomus, 68, 79, 91, 96, 114, 294, 296 



Pcecilia, 451; branneri, 458; reticulata, 458; vivi- 

 para, 25, 32, 71, 82, 92, 456, 458, 459 



Pceciliidfe, 84-86, 91-93, 97, 99, 112, 451, 455 



Pceciliida;, Key to the Guiana genera of, 451 



Pceciliinse, 451 



Pcecilobrycon, 113, 254, 287; auratus, 284, 2S5; 

 erythrurus, 67, 79, 88, 91, 96, 107, 114, 2S4, 285; 

 harrisoni, 37, 67, 78, 114, 283, 2S4; ocellatus, 67, 

 79, 88, 91, 96, 107, 114, 284, 286; trifasciatus, 67, 

 79, 88, 89, 107, 283, 286; unifasciatus, 284, 286 



Pcecilocharax, 107, 112, 113, 253, 255; bimacnlatum, 

 105; bovallii, 68, 79, 93, 96, 100, 103, 114, 310 



Pceeilosomatops etheostoma, 288 



Poeeilurichthys, 256; abramis, 69, 358; abramoides, 

 54, 80, 89, 91, 97, 114, 355, 357, 361, 362; anterior, 

 358; bimaculatus, 26, 33, 69, 88, 97, 100, 356, 359, 

 361; bovalii, 101; brevoortii, 355, 360; hemi- 

 grammus unilineatus, 332; orthodus, 301; poly- 

 lepis, 69, 80, 89, 97, 355, 356; potaroensis, 69, SO, 

 91,93,97, 114,356,361 



pcecilus, Microglanis, 64, 75, 92, 113, 155 



Polycentridae, 84, 86, 88, 522 



Polycentrus schomburgki, 22, 73, 83, SS, 522 



polygramma, Doras, 188 



polylepis, Poeeilurichthys, 69, 80, S9, 97, 355, 356; 

 Tetragonopterus, 356 



Pomotis bono, 21, 492; catesbei, 22; fasciatus, 21 



Popta, C. M. L., 3 



Poptella longipinnis, 69 



Porchina, 307 



Porotergus, 113, 423; gimbeli, 70, 82, 115, 441; 

 gymnotus, 54, 57, 71, 93, 97, 114, 440, 441 



porphyreus, Ageneiosus, 66 



Potamorrhaphis guianensis, 20, 71, 82, 89, 97, 461; 

 taeniata, 461 



Potamotrygon, 111, 116; d'orbignyi, 64; humboldtii, 

 116; hystrix, 21, 28, 64, 75, S9, 117; motoro, 64; 

 reticulatus, 64 



Potamotrygoninas, Key to the Guiana genera of, 116 



potaroensis, jEquidens, 54, 72, 83, 93, 98, 100, 101, 

 105, 106, 115, 487, 490; Astyanax, 361; Deuter- 

 odon, 54, 69, 80, 91, 93, 97, 114, 363; Myoglanis, 

 54, 64, 75, 91, 92, 95, 113, 159; Pcecilurichthys, 69, 

 80,91,93,97, 114,356,361 



Potaro River and Guiana Plateau, Ichthyic fauna 

 of, 94 



