Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species in the genus Ernstichthys: [ 5 ] records

anduzei, Ernstichthys Fernández-Yépez [A.] 1953:5, Fig. 1 [Novedades Cientificas, Contribuciones Ocasionales del Museo de Historia Natural La Salle, Serie Zoológica No. 11; ref. 1322] Río Salinas, northeast of El Baúl, Estado Cojedes, Venezuela. Holotype (unique): MHNLS 28 [not MHNLS 7779]. Type catalog: Lasso et al. 1997:44 [ref. 23639], Ferraris 2007:60 [ref. 29155]. •Valid as Ernstichthys anduzei Fernández-Yépez 1953 -- (Mees 1988:91 [ref. 6401], Burgess 1989:304 [ref. 12860], Friel in Reis et al. 2003:264 [ref. 27061], Ferraris 2007:60 [ref. 29155], Aguilera et al. 2025:531 [ref. 42359]). Current status: Valid as Ernstichthys anduzei Fernández-Yépez 1953. Aspredinidae: Hoplomyzontinae. Distribution: South America: Orinoco River basin, Venezuela. Habitat: freshwater.

casalinuovoi, Ernstichthys Aguilera [G.], Terán [G. E.], Méndez-López [A.], Montes [M. M.] & Carvalho [T. P.] 2025:528, Figs. 1-3A, 4-7 [Ichthyology & Herpetology v. 113 (no. 3); ref. 42359] San Lorenzo River, tributary to San Francisco River, Bermejo River basin, Ledesma Department, Jujuy Province, Argentina, 23°49'45.5"S, 64°39'5.5"W. Holotype: CI-FML 8098. Paratypes: CFA, CI-FML. •Valid as Ernstichthys casalinuovoi Aguilera, Terán, Méndez-López, Montes & Carvalho 2025. Current status: Valid as Ernstichthys casalinuovoi Aguilera, Terán, Méndez-López, Montes & Carvalho 2025. Aspredinidae: Hoplomyzontinae. Distribution: South America: Bermejo River basin, Jujuy Province, Argentina. Habitat: freshwater.

intonsus, Ernstichthys Stewart [D. J.] 1985:16, Figs. 1f, 3, 9. [Fieldiana Zoology (New Series) No. 25; ref. 5239] Río Napo at Añangu, Napo Province, 0°30.8'S, 76°24.0'W, Ecuador. Holotype (unique): FMNH 94603. Type catalog: Ibarra & Stewart 1987:35 [ref. 12367], Ferraris 2007:60 [ref. 29155]. •Valid as Ernstichthys intonsus Stewart 1985 -- (Mees 1988:91 [ref. 6401], Burgess 1989:304 [ref. 12860], Friel in Reis et al. 2003:264 [ref. 27061], Ferraris 2007:60 [ref. 29155], Barriga Salazar 2014:110 [ref. 35745], Aguilera et al. 2025:531 [ref. 42359]). Current status: Valid as Ernstichthys intonsus Stewart 1985. Aspredinidae: Hoplomyzontinae. Distribution: South America: Napo River basin, Ecuador. Habitat: freshwater.

megistus, Hoplomyzon Orcés V. [G.] 1961:3, Figs. 1-2 [Ciencia y Naturaleza (Quito) v. 4 (no. 1); ref. 6358] Small river off of the Río Chicherota, Río Bobonaza system, Province Pastaza, eastern Ecuador. Holotype: Author's coll. 4305 (whereabouts unknown). Paratypes: Univ. Cent. Ecuador 270 (1). Type catalog: Ferraris 2007:60 [ref. 29155]. •Valid as Hoplomyzon megistus Orcés V. 1961 -- (Ovchynnyk 1967:36 [ref. 37559]). •Valid as Ernstichthys megistus (Orcés V. 1961) -- (Burgess 1989:304 [ref. 12860], Friel in Reis et al. 2003:264 [ref. 27061], Ferraris 2007:60 [ref. 29155], Barriga Salazar 2014:110 [ref. 35745], Aguilera et al. 2025:531 [ref. 42359]). Current status: Valid as Ernstichthys megistus (Orcés V. 1961). Aspredinidae: Hoplomyzontinae. Distribution: South America: Bobonaza and Marañón River basins (Ecuador and Peru). Habitat: freshwater.

taquari, Ernstichthys Dagosta [F. C. P.] & de Pinna [M. C. C.] 2021:9, Figs. 4-6 [Papéis Avulsos de Zoologia (São Paulo) v. 61: e20216147; ref. 38286] Rio Taquarizinho, tributary to Rio Taquari, Rio Paraguay drainage, Alcinópolis, Mato Grosso do Sul, Brazil, 18°12'14.8"S, 53°34'11.3"W, elevation 363 meters. Holotype: MZUSP 125825. Paratypes: MZUSP 125826 (2). •Valid as Ernstichthys taquari Dagosta & de Pinna 2021 -- (Aguilera et al. 2025:531 [ref. 42359]). Current status: Valid as Ernstichthys taquari Dagosta & de Pinna 2021. Aspredinidae: Hoplomyzontinae. Distribution: South America: upper Rio Taquari drainage, Rio Paraguay basin, Mato Grosso do Sul, Brazil. Habitat: freshwater.