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 macros])ila, 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 



piseatrix, 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 



platycephalus, Pseudohemiodon, 243 



Platydoras costatus, 184, 186 



Platygaster africanus, 445; flavipinnis, 446; mucro- 

 natus, 447 



Platynematichthys punctulatus, 65 



platyrhynchos, Hemisorubim, 23, 65, 181; Platy- 

 stoma, 181 



platyrhynchus, Hemisorubim, 181; Platystoma, 23 



Platystaeus, 120, 124; aspredo, 123; cotylephorus, 

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

 nematophorus, 64; tibicen, 122; verrucosus, 125 



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

 planiceps, 18; platyrhynchos, 23, 181; punctifer 

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

 vaillanti, 18, 180 



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

 Lorieariichthys, 89; Oxyloricaria, 251 



platyura, Loricaria, 24, 248, 249 ; Lorieariichthys, 24 



platyurus, Lorieariichthys, 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, 45S; reticulata, 458; vivi- 



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

 Pceciliida;, 84-86, 91-93, 97, 99, 112, 451, 455 

 Poeciliidsc, Key to the Guiana genera of, 451 

 Pceciliina", 451 

 Poecilobrycon, 113, 254, 2S7; auratus, 284, 285; 



erythrurus, 67, 79, 88, 91, 96, 107, 114, 284, 285; 



harrisoni, 37, 67, 78, 114, 283, 284; ocellatus, 67, 



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



79, 88, 89, 107, 2S3, 2S6; unifasciatus, 2S4, 286 

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



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



Pcecilosomatops etheostoma, 288 



Pcecilurichthys, 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, 361; poly- 

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

 91, 93, 97, 114, 356, 361 



poecilus, Microglanis, 64, 75, 92, 113, 155 



Polyeentridse, 84, 86, 88, 522 



Polycentrus schomburgki, 22, 73, 83, 88, 522 



polygramma, Doras, 188 



polylepis, Pcecilurichthys, 69, 80, 89, 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; 

 tseniata, 461 



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

 116; hystrix, 21, 28, 64, 75, 89, 117; motoro, 64; 

 reticularis, 64 



Potamotrygoninse, Key to the Guiana genera of, 116 



potaroensis, ^Equidens, 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 



