Espèces décrites (53):
- Agonostoma globiceps Günther, 1874, synonym
- Heros trimaculatus Günther, 1867 (Amphilophus), valid
- Heros macracanthus Günther, 1864 (Astatheros), valid
- Tetragonopterus aeneus Günther, 1860 (Astyanax), valid
- Atherinichthys guatemalensis Günther, 1864 (Atherinella), valid
- Gobius transandeanus Günther, 1861 (Awaous), valid
- Ceratichthys sallaei Günther, 1868 (Aztecula), valid
- Centropomus brevis Günther, 1864, synonym
- Centropomus medius Günther, 1864 (Centropomus), valid
- Centropomus nigrescens Günther, 1864 (Centropomus), valid
- Mugil proboscideus Günther, 1861 (Chaenomugil), valid
- Characodon lateralis Günther, 1866 (Characodon), valid
- Heros intermedius Günther, 1862 (Chuco), valid
- Citharichthys spilopterus Günther, 1862 (Citharichthys), valid
- Heros nigrofasciatus Günther, 1867 (Cryptoheros), valid
- Heros spilurus Günther, 1862 (Cryptoheros), valid
- Gerres axillaris Günther, 1864 (Diapterus), valid
- Meletta petenense Günther, 1867 (Dorosoma), valid
- Eleotris longiceps Günther, 1864, synonym
- Cyprinodon carpio Günther, 1866 (Floridichthys), valid
- Fundulus pachycephalus Günther, 1866, synonym
- Lembus maculatus Günther, 1859 (Gobiomorus), valid
- Gobius mexicanus Günther, 1861, synonym
- Hemichromis guttatus Günther, 1862 (Hemichromis), valid
- Heros angulifer Günther, 1862, synonym
- Heros parma Günther, 1862, synonym
- Leuciscus boucardi Günther, 1868 (Hybopsis), valid
- Ceratichthys cumingii Günther, 1868 (Hybopsis), valid
- Amiurus meridionalis Günther, 1864 (Ictalurus), valid
- Sclerognathus meridionalis Günther, 1868 (Ictiobus), valid
- Leuciscus zunnensis Günther, 1868, synonym
- Limnurgus variegatus Günther, 1866, synonym
- Heros urophthalmus Günther, 1862 (Mayaheros), valid
- Meletta libertatis Günther, 1867 (Opisthonema), valid
- Heros managuensis Günther, 1866 (Parachromis), valid
- Chromis nebulifera Günther, 1860 (Paraneetroplus), valid
- Petenia splendida Günther, 1862 (Petenia), valid
- Poecilia chisoyensis Günther, 1866, synonym
- Mollienesia petenensis Günther, 1866 (Poecilia), valid
- Poecilia spilurus Günther, 1866, synonym
- Girardinus pleurospilus Günther, 1866 (Poeciliopsis), valid
- Pristipoma leuciscus Günther, 1864 (Pomadasys), valid
- Fundulus labialis Günther, 1866 (Profundulus), valid
- Fundulus punctatus Günther, 1866 (Profundulus), valid
- Mollienesia jonesii Günther, 1874 (Pseudoxiphophorus), valid
- Pimelodus guatemalensis Günther, 1864 (Rhamdia), valid
- Theraps irregularis Günther, 1862 (Theraps), valid
- Heros salvini Günther, 1862 (Trichromis), valid
- Solea fonsecensis Günther, 1862 (Trinectes), valid
- Chromis fenestrata Günther, 1860 (Vieja), valid
- Heros guttulatus Günther, 1864 (Vieja), valid
- Heros melanurus Günther, 1862 (Vieja), valid
- Platypoecilus maculatus Günther, 1866 (Xiphophorus), valid
Genres décrits (5):
- Characodon Günther, 1866, valid
- Lophogobius Günther, 1873, valid
- Petenia Günther, 1862, valid
- Roeboides Günther, 1864, valid
- Theraps Günther, 1862, valid