INDEX 



565 



193-195; leporhinus, 65, 76, 87, 92, 96, 113, 193, 



195; micropcEUs, 65, 76, 91, 113, 193, 195; micro- 



stomus, 65, 76, 113, 192, 193; notospilus, 65, 76, 



92, 113, 193, 195; orestes, 193; stenopeltis, 192; 



wilderi, 193 

 Hemigranimus, Key to the Guiana species of, 331 

 Hemigrammus, 4, 112, 255, 330; analis, 80, 114, 332, 



337; cylindricus, 68, 80, 89, 97, 114, 332, 333; 



elegans, 331; erythrozonus, 68, 79, 93, 97, 114, 



332, 333; gracilis, 340; iota, 43, 68, 79, 89, 114, 



332, 336; micropterus, 69; ocellifcr, 68, 79, 89, 



332, 335; orthus, 80, 89, 114, 332, 336; riddlei, 



340; rodwayi, 33, 68, 79, 88, 92, 332, 334; iinili- 



neatus, 68, 79, 92, 331-333 

 heniigrammus, Asiplionichthys, 70, 81, 109, 114, 



403; Phenacocliarax, 43 

 heniiliopterus, Phractoceplialus, 18, 28, 65, 76, 178; 



Silurus, 178 

 Hemiodina>, 96, 98, 99 

 Hemiodon acipenserinus, 251 

 Hemiodontichthys, 222; acipenserinus, 43, 67, 78, 



88, 250 

 Hemiodontinae, 254, 274 

 Hemiodopsis niicrolepis, 275 

 Hemiodus, Key to the Guiana species of, 275 

 'V Hemiodus, 254; crenidens, 275; gracihs, 276, 277; 

 ^ immaculatus, 67; maculofasciata, 67; maculo- 



fasciatus, 88, 89; microcephalus, 277; notatus, 277; 



Pellegrini, 91; quadrimaculatus, 67, 78, 93, 96, 



275; semitisniatus, 57, 67, 78, 275, 276; uni- 



maculatus, 25, 275, 277 

 hemiphractus, CaUichthys, 216 

 Hemiplatystoma, 182; tigrinum, 182 

 Hemisorubim, 131; platyrhynchos, 23, 65, 181; 



platyrhynchus, 181 

 hemiurus, Plecostomus, 66, 88, 91, 96, 104, 106, 114, 



224, 225, 227 

 henlei, Carcharias, 28; Trygon, 117 

 Heptapterus, 130, 160; coUetti, 130; eigenmanni, 



130; mustelinus, 130; surinamensis, 131 

 Heros bimaculata, 495; bimaculatus, 495; cory- 



phceus, 497; fasciatus, 497; festivus, 498; insignis, 



498; modestus, 497; severum, 494; spurius, 497 

 herzbergi, Arius, 139; Bagrus, 139; Galeichthys, 



139; Netuma, 139; Selanaspis, 23, 64, 75, 110, 139; 



Silurus, 139; Tachisurus, 139, 142 

 Hetererythrinus salmoneus, 420 

 Heterocharax, 110, 113, 258; macrolepis, 70, 81, 114, 



405, 406 

 heterodontus, Astatheros, 494 

 Heterognathi, 118, 253 

 Heterogramma, 483; corumba>, 507; ortmanni, 72, 



83, 89, 90, 98, 100, 101, 115, 506; steijidaclmeri, 



2, 72, 83, 89, 98, 105, 508 



heterolepis, Plagioscion, 72 



heteropleurus, Pimelodus, 65, 76, 92, 113, 171, 172 



Heterosomata, 119, 525 



hexadactylus, Silurus, 125 



Hexanematichthys, 129; hymenorhinus, 140; mus- 



teUnus, 64; phrygiatus, 64; rugispinis, 64, 75, 110, 



147; surinamensis, 64 

 hiari, 51 



liilarii, Salminus, 70 

 histrix, Acantliicus, 17; Trygon, 21 

 Holland, W. J., vii 

 holmiaj, Rivulus, 71, 82, 93, 97, 100, 101, 115, 452, 



453 

 Holobrycon, 256; pesu, 26, 69, SO, 89, 90, 97, 369 

 holomelas, Pimelodus, 29, 166; Rhaindia, 35, 65, 



162, 166 

 Holopristis riddlei, 329, 330; ocelUfer, 335 

 Holotaxis, 278 



Hoplarchus peutacanthus, 494 

 Hoplerythrinus, 258; unitieniatus, 25, 70, 81, 89, 97, 



100, 101, 105,418,419 

 HopUas, 253, 258, 412; macrophthalmus, 20, 25, 70, 



81, 97, 105, 413, 418; malabaricus, 20, 25, 70, 81, 



88, 89, 91, 97, 100, 101, 105, 414, 415; microph- 



thalmus, 413 

 Hopliosoma punctata, 219, 220 

 hoplogenys, Ancistrus, 66, 77, 237, 239, 241; Cha;to- 



stomus, 239; Xenocara, 239 

 Hoplosternum, Key to the Guiana species, 216 

 Hoplosternum, 214; loevigatum, 216, 217; littorale, 



15, 66, 77, 88, 91, 216, 217; longifilis, 218; stevardii, 



217; thoracatum, 17, 24, 66, 77, 88, 104, 216, 218, 



219 

 horridus, Hypostomus, 227; Plecostomus, 227 

 Houri, 418 

 humboldtii, Pastinaca, 116; Potamotrygon, 116; 



Sternopygus, 429 

 humeralis, Cynopotamus, 70 

 Huri, 20 



Hydrocyninffi, 258, 411 

 Hydrocynus, 258; cuvieri, 19, 26, 70, 81, 411; Lucius, 



411; scomberoides, 396 

 Hydrocyon argenteus, 403; armatus, 20, 410; 



falcirostris, 410; niicrolepis, 20, 408; scomberoides, 



396 

 Hydrolycus, 396; scomberoides, 26, 70, 81, 254, 257, 



317, 396 

 Hydroscion armatus, 396 

 hymenorhinus, Hexanematichthys, 140 

 Hyphessobrycon, Key to the Guiana species of, 338 

 Hyphessobrycon, 4, 112, 255; belotti, 69; bifasciatus, 



108; compressus, 338; eos, 69, 80, 93, 97, 114, 339, 



341; graciUs, 43, 69, SO, 89, 109, 338, 340; liitkcni, 



108; minimus, 35, 69, 80, 92, 114, 338, 341; 



