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

Species in the genus Petitella: [ 3 ] records

bleheri, Hemigrammus Géry [J.] & Mahnert [V.] 1986:41, Fig. [Tropical Fish Hobbyist v. 34 (no. 11); ref. 8088] Middle Rio Negro basin, Brazil (probably near Rio Jufaris). Holotype: MZUSP 37369. Paratypes: MHNG 2179.87 (1), 2179.91 (1), 2179.90 and 2239.51 (5), 2239.52 (1). Type catalog: Oyakawa 1996:467 [ref. 23140]. •Valid as Hemigrammus bleheri Géry & Mahnert 1986 -- (Taphorn 1992:224 [ref. 23654], Lima & Oyakawa in Reis et al. 2003:131 [ref. 27061], Carvalho et al. 2010:253 [ref. 30862], Mirande 2010:508 [ref. 31006], DoNascimiento et al. 2017:48 [ref. 35633]). •Valid as Petitella bleheri (Géry & Mahnert 1986) -- (Bittencourt et al. 2020:7 [ref. 37634], Lima 2024:248 [ref. 40817]). Current status: Valid as Petitella bleheri (Géry & Mahnert 1986). Acestrorhamphidae: Megalamphodinae. Distribution: South America: Negro and Meta River drainages, Brazil and Colombia. Habitat: freshwater.

georgiae, Petitella Géry [J.] & Boutière [H.] 1964:474, Fig. 1 [Vie et Milieu Suppl. No. 17; ref. 1599] Lagunas village, lower Río Huallago, Loreto District, Peru. Holotype: MHNG 2150.28 [ex Géry coll. M.314,1]. Paratypes: ANSP 139710 (6); MHNG 2150.28 (1), 2150.29-64 (37), 2150.6588 (31); MNHN 1980-1447 (2); ZFMK 1419 (1); ZSM 26332 (3). Type catalog: Busse 1984:218 [ref. 28342], Böhlke 1984:47 [ref. 13621], Weber 1998:8 [ref. 32707], Herder et al. 2010:118 [ref. 31087], Neumann 2011:247 [ref. 31652]. •Valid as Petitella georgiae Géry & Boutière 1964 -- (Ortega & Vari 1986:9 [ref. 9708], Lima in Reis et al. 2003:153 [ref. 27061], DoNascimiento et al. 2017:52 [ref. 35633], Bittencourt et al. 2020:7 [ref. 37634], Meza-Vargas et al. 2021:19 [ref. 39298], Lima 2024:249 [ref. 40817]). Current status: Valid as Petitella georgiae Géry & Boutière 1964. Acestrorhamphidae: Megalamphodinae. Distribution: South America: Amazon River basin (Brazil, Colombia and Peru). Habitat: freshwater.

rhodostomus, Hemigrammus Ahl [E.] 1924:405, fig. [Wochenschrift für Aquarien- und Terrarienkunde v. 21 (no. 18); ref. 15433] Rio Tapajoz, near Santarem, Pará, Brazil. Lectotype: ZMB 22626 [apparently not 22616]. Paralectotypes: USNM 273367 [ex ZMB 22626] (2); ?ZMB 20804 (1), 32434 (3). Types mentioned: Paepke 1995:92 [ref. 21847], Zarske & Géry 1995:111, Fig. 7 [ref. 22674] but as 22616. Lectotype selected by Zarske & Géry 1995:112 [ref. 22674]. Type locality described in more detail by Ramsperger 1924:810 [ref. 35915]. The specific name is an adjective. •Valid as Hemigrammus rhodostomus Ahl 1924 -- (Taphorn 1992:224 [ref. 23654], Zarske & Géry 1995:118 [ref. 22674], Lima & Oyakawa in Reis et al. 2003:133 [ref. 27061], Bertaco & Carvalho 2005:147 [ref. 28675], Marinho et al. 2008:59 [ref. 29547], Carvalho et al. 2010:253 [ref. 30862], DoNascimiento et al. 2017:49 [ref. 35633]). •Valid as Petitella rhodostoma (Ahl 1924) -- (Bittencourt et al. 2020:7 [ref. 37634], Lima 2024:249 [ref. 40817]). Current status: Valid as Petitella rhodostoma (Ahl 1924). Acestrorhamphidae: Megalamphodinae. Distribution: South America: Amazon and Orinoco river basins, Brazil, Colombia and Venezuela. Habitat: freshwater.