572 



MEMOIRS OF THE CARNEGIE MUSEUM 



Pinirampus, 130; pirinampu, IS, 75, 149; tj'pus, 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 



piraruc'u, Sudis, 451 



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

 Serrasalmo, 383, 384 



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

 Pirinampus, 64 



Pirinampus pirinampu, 64 



pirinampus, Pimelodus, 149 



piscatrix, Pseudorhamdia, 173 



pisonis, Eleotris, 524 



Pitheeocharax, 294; trimaculatus, 296 



Plagioscion, 465; auratus, 72, S3, 472; heterolepis, 72; 

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

 72 



planiceps, Platystoma, IS; Sorubimichthys, 65 



Platax scalaris, 521 



Plataxoides dumerilii, 521 



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



Platycephalus undecimaUs, 481 



platypephalus, Pseudohemiodon, 243 



Platydoras costatus, 1S4, 186 



Platygaster africanus, 445; flavipinnis, 446; mucro- 

 natus, 447 



Platynematichthys punctulatus, 65 



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

 stoma, 181 



platyrhynchus, Hemisorubim, ISl; Platystoma, 23 



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

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

 nematophorus, 64; tibieen, 122; verrucosus, 125 



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

 planiceps, IS; platyrhynchos, 23, 181; punctifer, 

 183; tigrinum, 18, 23, 183; truncatum, 183 

 vaillanti, 18, ISO 



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; anna;, 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, Hj-jiostoma, 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 

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



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

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

 PoeeihidiE, Key to the Guiana genera of, 451 

 Pcecihinw, 451 

 Pcecilobrycon, 113, 254, 287; 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, 283, 286; unifasciatus, 284, 286 

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



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

 Pcpcilosomatops etheostoma, 288 

 Poecilurichthys, 256; abramis, 69, 358; abramoides, 



54, SO, 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, SO, 



91, 93, 97, 114, 356, 361 

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

 Polycentrida>, 84, 86, 88, 522 

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

 polygramma, Doras, 188 

 polylepis, Poecilurichthys, 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; 



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

 porphyreus, Ageneiosus, 66 

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



tseniata, 461 

 Potamotrygon, HI, 116; d'orbignji, 64; humboldtii, 



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



reticulatus, 64 

 PotamotrygoniniE, Key to the Guiana genera of, 116 

 potaroensis, yEquidens, 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 



