Acanthurus monroviae Steindachner, 1876 (original description)
Aprion microdon Steindachner, 1876 accepted as Pristipomoides sieboldii (Bleeker, 1855) (original description)
Artedius pugetensis Steindachner, 1876 accepted as Chitonotus pugetensis (Steindachner, 1876) (original description)
Balistes polylepis Steindachner, 1876 (original description)
Bembrops Steindachner, 1876 (original description)
Bembrops caudimacula Steindachner, 1876 (original description)
Blennius paytensis Steindachner, 1876 accepted as Hypsoblennius paytensis (Steindachner, 1876) (original description)
Blennius striatus Steindachner, 1876 accepted as Hypsoblennius striatus (Steindachner, 1876) (original description)
Callichthys adspersus Steindachner, 1876 accepted as Dianema longibarbis Cope, 1872 (original description)
Clinus ocellatus Steindachner, 1876 accepted as Starksia ocellata (Steindachner, 1876) (original description)
Corydoras agassizii Steindachner, 1876 (original description)
Corydoras elegans Steindachner, 1876 (original description)
Corydoras eques Steindachner, 1876 (original description)
Corydoras nattereri Steindachner, 1876 (original description)
Cremnobates fasciatus Steindachner, 1876 accepted as Paraclinus fasciatus (Steindachner, 1876) (original description)
Cremnobates marmoratus Steindachner, 1876 accepted as Paraclinus marmoratus (Steindachner, 1876) (original description)
Curimata knerii Steindachner, 1876 (original description)
Curimatus bimaculatus Steindachner, 1876 accepted as Steindachnerina bimaculata (Steindachner, 1876) (original description)
Curimatus knerii Steindachner, 1876 accepted as Curimata knerii Steindachner, 1876 (original description)
Curimatus macrolepis Steindachner, 1876 accepted as Curimatopsis macrolepis (Steindachner, 1876) (original description)
Curimatus pristigaster Steindachner, 1876 accepted as Potamorhina pristigaster (Steindachner, 1876) (original description)
Cynolebias Steindachner, 1876 (original description)
Cynolebias porosus Steindachner, 1876 (original description)
Geophagus crassilabris Steindachner, 1876 (original description)
Gobiosoma multifasciatum Steindachner, 1876 accepted as Tigrigobius multifasciatus (Steindachner, 1876) (original description)
Gobius diadema Steindachner, 1876 accepted as Istigobius diadema (Steindachner, 1876) (original description)
Hippoglossina Steindachner, 1876 (original description)
Hippoglossina macrops Steindachner, 1876 (original description)
Hypsagonus swanii Steindachner, 1876 accepted as Bothragonus swanii (Steindachner, 1876) (original description)
Leporinus agassizii Steindachner, 1876 (original description)
Leporinus muelleri Steindachner, 1876 accepted as Leporinus moralesi Fowler, 1942 (original description)
Leporinus nattereri Steindachner, 1876 (original description)
Leporinus trifasciatus Steindachner, 1876 accepted as Megaleporinus trifasciatus (Steindachner, 1876) (original description)
Lophiosilurus Steindachner, 1876 (original description)
Lophiosilurus alexandri Steindachner, 1876 (original description)
Luetkenia insignis Steindachner, 1876 accepted as Stichonodon insignis (Steindachner, 1876) (original description)
Muraena panamensis Steindachner, 1876 accepted as Gymnothorax panamensis (Steindachner, 1876) (original description)
Nannostomus anomalus Steindachner, 1876 accepted as Nannostomus beckfordi Günther, 1872 (original description)
Nannostomus eques Steindachner, 1876 (original description)
Nannostomus trifasciatus Steindachner, 1876 (original description)
Nannostomus unifasciatus Steindachner, 1876 (original description)
Paragoniates Steindachner, 1876 (original description)
Paragoniates alburnus Steindachner, 1876 (original description)
Petroscirtes elegans Steindachner, 1876 accepted as Omobranchus elegans (Steindachner, 1876) (original description)
Pimelodina Steindachner, 1876 (original description)
Pimelodina flavipinnis Steindachner, 1876 (original description)
Pimelodus pictus Steindachner, 1876 (original description)
Platycephalus ransonnetii Steindachner, 1876 accepted as Elates ransonnettii (Steindachner, 1876) (original description)
Platycephalus ransonnettii Steindachner, 1876 accepted as Elates ransonnettii (Steindachner, 1876) (original description)
Pristigaster panamensis Steindachner, 1876 accepted as Odontognathus panamensis (Steindachner, 1876) (original description)
Rivulus poeyi Steindachner, 1876 accepted as Anablepsoides urophthalmus (Günther, 1866) (original description)
Salarias gigas Steindachner, 1876 accepted as Scartichthys gigas (Steindachner, 1876) (original description)
Sargus kotschyi Steindachner, 1876 accepted as Diplodus kotschyi (Steindachner, 1876) (original description)
Seriola mazatlana Steindachner, 1876 accepted as Seriola lalandi Valenciennes, 1833 (original description)
Siphagonus barbatus Steindachner, 1876 accepted as Pallasina barbata (Steindachner, 1876) (original description)
Solea nattereri Steindachner, 1876 accepted as Apionichthys nattereri (Steindachner, 1876) (original description)
Solea panamensis Steindachner, 1876 accepted as Trinectes fonsecensis (Günther, 1862) (original description)
Tetragonopterus multiradiatus Steindachner, 1876 accepted as Ctenobrycon multiradiatus (Steindachner, 1876) (original description)
Tetragonopterus tabatingae Steindachner, 1876 accepted as Phenacogaster pectinata (Cope, 1870) (original description)
Tetrodon fuerthii Steindachner, 1876 accepted as Sphoeroides trichocephalus (Cope, 1870) (original description)
Thalassophryne amazonica Steindachner, 1876 (original description)
Thalassophryne nattereri Steindachner, 1876 (original description)
Thalassophryne punctata Steindachner, 1876 (original description)
Uranoscopus sexspinosus Steindachner, 1876 accepted as Astroscopus sexspinosus (Steindachner, 1876) (original description)
Xiphostoma longipinne Steindachner, 1876 accepted as Boulengerella cuvieri (Spix & Agassiz, 1829) (original description)