INDEX 



569 



Mieroglanis, 113, 130; parahybce, 155; poecilus, 64, 



75,92, 113, 155;pulcher, 155 

 microlepidotus, Cynoscion, 71 

 microlepis, Acanthocharax, 70, 81, 97, 114, 404, 405 



Acestrorhynchus, 20, 26, 70, 81, 88, 97, 407-409; 



Anableps, 25, 71, 82, 455; Epicyrtus, 398; Hemio- 



dopsis, 275; Hydrocyon, 20, 408; Rceboides, 70, 



398; Xiphorhamphus, 26, 408 

 micropoeus, Hemidoras, 65, 76, 91, 113, 193, 195 

 microphis cuneatus, 462 

 Micropogon, 466; argenteus, 478; furnieri, 22, 72, 



83, 478; lineatus, 22, 478; trifilis, 22, 474; undu- 



latus, 478 

 microps, Eigenmannia, 429; Microps, 83; Nebris, 



72, 470, 471; Otolithus, 467; Tylosurus, 71 

 micropterus, Hemigrammus, 69 

 micropthalmus, Tetrabranchus, 442 

 micropus, Rivulus, 71 

 microstictus, Phcnacogaster, 69, 97, 107, 114, 366, 



368 

 microstoma, Astyanax, 360 

 microstomus, Hemidoras, 65, 76, 113, 192, 193 

 minimus. Hyphessobrycon, 35, 69, 80, 92, 114, 338, 



341; Nannostomus, 67, 78, 96, 114, 282, 283 

 minor, Hyphessobrycon, 57, 69, 80, 93, 114, 338, 339 

 minutus, Archicheir, 38, 67, 79, 108, 114, 287; 



Hemicetopsis, 54, 66, 77, 91, 92, 96, 114, 211 

 Mitchell, J. B., 3 

 modestus, Heros, 497 

 Mcenkhausia, 255; browni, 68, 79, 91, 93, 97, 100, 



101, 107, 114, 321, 324; chrysargyrea, 68, 79, 90, 



97, 321-323; colletti, 68, 79, 88, 90, 91, 321, 



328; cotinho, 68, 79, 97, 320, 321, 327; dichroura, 



321, 326; grandisquamis, 68, 79, 97, 107, 321, 



323; lepidura, 68, 79, 88, 90, 97, 112, 321, 326; 



megalops, 43, 68, 79, 321, 325; oligolepis, 26, 6S, 



79, 93, 97, 100, 101, 105, 321, 322, 325; ovalis, 



68; profunda, 68, 79, 107, 114, 321; shideleri, 



68, 79, 97, 114, 321, 325 

 monacantha, Corvina, 473; Scisena, 473 

 monitor, Zathorax, 184 



Monochir lineatus, 526; maculipinnis, 22, 527 

 Monochirus maculipinnis, 526 

 monticola, Agonostomus, 463 

 mora, Dimorphandra, 6 



morawhanna;, Curimatus, 67, 78, 91, 114, 263, 266 

 morocoto, Myletes, 19 

 motoro, Tseniura, 28, 117 

 mueronatus, Astyanax, 69, 80, 93, 97, 114, 350, 354; 



Gnathobolus, 447; Odontognathus, 71, 82, 446, 



447; Platygaster, 447 

 muelleri, Leporinus, 68 

 Mugil, Key to the Guiana species of, 464 

 Mugil, 74; brasiliensis, 71, 82, 464, 465; cephalus, 71, 



463; curema, 22, 71, 83, 464; guentheri, 464; 



incilis, 71, 82, 464; lebranchus, 464; liza, 22, 464; 



petrosus, 464 

 Mugilidae, 74, 84, 86, 463 

 muelleri, Brachyrhamphichthys, 434; Creagrutus, 



347; Hypopomus, 433, 434; Pimelodus, 165; 



Rhamphichthys, 433, 434; Sternarchorhynchus, 



437, 438; Trygon, 117 

 Mullets, 15, 463 

 multidens, Astyanax, 351 

 multiradiatus, Hypostomus, 15, 22S; Liposarcus, 



228; Notoglanis, 162; Pimelodus, 166; Pterygo- 



pliehthys, 15, 66, 228; Rhamdia, 65, 166 

 multispinosa, Crenicichla, 72 

 Mura'iia lumbricus, 443 

 muricus, Doras, 185 

 musculus, Pimelodus, 165 

 mustelinus, Heptapterus, 64, 130 

 Mutation in British Guiana freshwater fishes, 107 

 mutator, Astyanax, 69, SO, 93, 97, 100, 101, 114, 350, 



353 

 Mylesinus, 257; macropterus, 387; schomburgki, 70, 



81,387,388 

 Myletes asterias, 27, 390, 392; cartabac, 19; dio- 



dyxodon, 394; divaricatus, 394; ellipticus, 392; 



filosus, 394; hypsauchen, 27; latus, 27, 393; macu- 



latus, 390; morocoto, 19; pacu, 19, 21, 28, 393; 



palometa, 19, 391; rhomboidalis, 392; rubripinnis, 



27, 391; schomburgkii, 27, 394; setiger, 394; 



trilobatus, 394 

 Myleus, 112, 257; asterias, 392; ellipticus, 392; 



oligocanthus, 388; pacu, 19, 27, 70, 97, 393; 



rhomboidalis, 89, 393; rubripinnis, 391; setiger, 



27, 393 

 Mylinse, 97, 99, 256, 386 

 Myloplus, 112, 257; asterias, 27, 38, 70, 81, 390, 392 



discoideus, 70; kneri, 70; pacu, 81, 90, 109, 110 



rhomboidalis, 27, 70, 81, 90, 91, 97, 109, 110 



rubripinnis, 27, 70, 81, 97, 391; schomburgki, 70, 



391 ; torquatus, 70 

 Mylosoma aureum, 70 

 Myoglanis, 130; potaroensis, 54, 64, 75, 92, 95, 113, 



159 

 Mystus ascita, 173; carolinensis, 133, 134 



Nannaeara, 483; anomala, 72, 83, 92, 488; bimacu- 

 lata, 72, 83, 93 (Cf. Err. et Corr.), 98, 115, 488 



Nannocharax borellii, 288 



Nannostomatinffi, 96, 98, 99, 108, 254, 281 



Nannostomus, 253, 254; anomalus, 283; auratus, 

 283; beckfordi, 2, 67, 78, 281; marginatus, 67, 78, 

 88, 114, 281; minimus, 67, 78, 91, 93, 96, 114, 283; 

 simplex, 35, 67, 78, 114, 283; trifasciatus, 282, 284 



nassa, Acara, 22; Acaropsis, 22, 72, 83, 485 



