Protocheirodon vari, , Castro, 2007

Toledo-Piza, Mônica, Baena, Eduardo G., Dagosta, Fernando C. P., Menezes, Naércio A., Ândrade, Marcelo, Benini, Ricardo C., Bertaco, Vinicius A., Birindelli, José Luís O., Boden, Gert, Buckup, Paulo A., Camelier, Priscila, Carvalho, Fernando R., Castro, Ricardo M. C., Chuctaya, Junior, Decru, Eva, Derijst, Eddy, Dillman, Casey B., Ferreira, Katiane M., Merxem, Dimitri G., Giovannetti, Victor, Hirschmann, Alice, Jégu, Michel, Jerep, Fernando C., Langeani, Francisco, Lima, Flávio C. T., Lucena, Carlos A. S., Lucena, Zilda Margarete S., Malabarba, Luiz R., Malabarba, Maria Cláudia S. L., Marinho, Manoela M. F., Mathubara, Kleber, Mattox, George M. T., Melo, Bruno F., Moelants, Tuur, Moreira, Cristiano R., Musschoot, Tobias, Netto-Ferreira, André L., Ota, Rafaela P., T. Oyakawa, Osvaldo, Pavanelli, Carla S., Reis, Roberto E., Santos, Osmar, Serra, Jane Piton, Silva, Gabriel S. C., Silva-Oliveira, Cárlison, Souza-Lima, Rosana, Vari, Richard P. & Zanata, Angela M., 2024, Checklist of the species of the Order Characiformes (Teleostei: Ostariophysi), Neotropical Ichthyology (e 230086) 22 (1), pp. 1-548 : 289-291

RP Vari

Chilodinae Eigenmann, 1903:144. Type genus: Chilodus Müller, Troschel, 1844 . Additional comments: The Chilodontinae Eigenmann, 1910 is in homonymy with two other family-group names: Chilodontidae Macalister, 1876 (Ciliophora) and Chilodontinae Wenz, 1938 (Mollusca, Gastropoda). Herbert, Bouchet (2011) proposed the removal of the homonymy between these names in placing the unused name Chilodontidae Macalister, 1876 on the Official Index; placing the name Chilodontinae Eigenmann, 1910, as emended by Fowler (1950), on the Official List; and the emendeding of Chilodontinae Wenz to Chilodontainae Wenz, 1938 to help preserve the spelling of Chilodontinae Eigenmann 1910. However, the proposal is controversial. Geiger (2011) argues that Fowler’s (1950) emendation of Chilod- to Chilodont- is unjustified. The author advocates the reversion of the fish family name to the original Chilodidae Eigenmann, 1910 , retaining the molluscan Chilodontidae Wenz, 1938 , and placing the unused protistan Chilodontidae Macalister, 1876 on the Official Index.

CAENOTROPUS Günther, 1864

Microdus Kner, 1858a:77 . Type species: Microdus labyrinthicus Kner, 1858 . Type by monotypy. Gender: Masculine. Additional comments: Preoccupied by Microdus Nees, 1812 , in Hymenoptera and Microdus Emmons, 1857 , in fossil fishes.

Caenotropus Günther, 1864:297 . Type species: Microdus labyrinthicus Kner, 1858 . Type by being a replacement name. Gender: Masculine. Additional comments: Replacement for Microdus Kner, 1859 , preoccupied by Microdus Nees, 1812 in Hymenoptera and Microdus Emmons, 1857 in fishes. Type species subsequently designated by Eigenmann, 1910:424 (type species designation ruled by ICZN Opinion 1150, 1980.

Tylobronchus Eigenmann, 1912a:253 , 271. Type species: Tylobronchus maculosus Eigenmann, 1912 . Type by monotypy. Gender: Masculine.

Caenotropus labyrinthicus (Kner, 1858)

Microdus labyrinthicus Kner, 1858a:77 . Type locality: Rio Branco und Barra do Rio negro. [Lectotype locality: Barra do Rio Negro, Brazil. Type locality mentioned only in more detailed description of Kner (1859)]. Lectotype: NMW 69289.1 (139 mm SL). [Designated by Vari et al. (1995:24)].

Chilodus labyrinthicus rupununi Fowler, 1914a:230 , fig. 2. Type locality: Rupununi River , Britsh Guiana. [ Guyana]. Holotype: ANSP 39316 [not 39306].

Distribution: 307, 308, 309, 310, 311, 314, 315, 316, 321, 322, 323, 324, 325 ( Vari et al., 1995; Sidlauskas, Vari , 2008; Torrente-Vilara et al., 2013).

Caenotropus maculosus (Eigenmann, 1912)

Tylobronchus maculosus Eigenmann, 1912a:272 , Pl. 35 (fig. 3). Type locality: Creek below Potaro Landing. [ Guyana]. Holotype: FMNH 53449 .

Distribution: 310, 311 ( Vari et al., 1995; Sidlauskas, Vari , 2008).

Caenotropus mestomorgmatos Vari, Castro, Raredon, 1995

Caenotropus mestomorgmatos Vari, Castro, Raredon, 1995:14 , figs. 9–10. Type locality: Venezuela, Estado Amazonas, Río Iguapo, tributary of Río Orinoco , Río Orinoco basin, 3°09’N, 65°28’W. Holotype: MBUCV-V-21750.

Distribution: 308, 314, 316 ( Vari et al., 1995; Sidlauskas, Vari , 2008; Melo et al., 2014).

Caenotropus schizodon Scharcansky , Lucena, 2007

Caenotropus schizodon Scharcansky , Lucena, 2007:60, figs. 1–3. Type locality: Brazil, Mato Grosso, Rio Arinos , Porto dos Gaúchos, 11°31’51”S, 57°25’08”W. Holotype: MCP 29971 .

Distribution: 316, 322, 324 (Scharcansky, Lucena, 2007; Melo et al., 2014).

Remarks: Possible morphotype of Caenotropus labyrinthicus (Melo et al., 2014) .

CHILODUS Müller, Troschel, 1844

Chilodus Müller, Troschel, 1844:85 . Type species: Chilodus punctatus Müller, Troschel, 1844 . Type by monotypy. Gender : Masculine. Additional comments: Name on Official List (ICZN Opinion 1150, 1980).

Chilodus fritillus Vari, Ortega, 1997

Chilodus fritillus Vari, Ortega, 1997:72 , fig. 1. Type locality: Peru. Madre de Dios, Provincia Tambopata, Río Palma Real , oxbow lagoon, 12°45’S, 69°03’W, elevation 192 meters. Holotype: MUSM 7223 .

Distribution: 318 ( Vari, Ortega, 1997 ).

Chilodus gracilis Isbrücker, Nijssen, 1988

Chilodus gracilis Isbrücker, Nijssen, 1988:54 , fig. 5. Type locality: Brazil, Est. Amazonas, right bank tributary to Rio Uaupés at Trovão (about 20 kilometers upstream of mouth of Rio Uaupés). Holotype: IRSNB 760 .

Distribution: 311, 314, 316, 321 (Isbrücker, Nijssen, 1988; Melo et al., 2014).

Chilodus punctatus Müller, Troschel, 1844

Chilodus punctatus Müller, Troschel, 1844:85 . Type locality: lacu Amucu Guianae. [ Lake Amucu , upper Essequibo river system, Guyana]. Lectotype: ZMB 23599 . [Designated by Isbrücker, Nijssen (1988:48)].

Citharinus chilodus Valenciennes, in Cuvier, Valenciennes, 1850:103 . Type locality: lacu Amucu Guianae. [ Guyana]. Lectotype: ZMB 23599. Not treated by Vari et al. (1995), Isbrucker, Nijssen (1988) or Vari, Raredon (2003) . Treated in Fricke et al, 2022 as an apparently unneeded new name for and objective synonym of Chilodus punctatus Müller, Henle, 1844 .

Distribution: 307, 310, 311, 315, 316, 318, 323, 324 ( Vari et al., 1995; Sidlauskas, Vari , 2008; Torrente-Vilara et al., 2013; Melo et al., 2014).

Chilodus zunevei Puyo, 1946

Chilodus zunevei Puyo, 1946:183 [1], fig. 1. Type locality: Région des plateaux des Guyanes située dans le terretoire de l’Inini à environ trois cent cinquante kilomètres à vol d’oiseau de l’Ile de Cayene, sur les contreforte des Monts Tumuc-Humac; ils furant recueilles dans une crique inconnue que se déverse dans l’Itany. [ French Guiana]. Syntypes: (2, apparently never deposited in a museum, whereabouts unknown).

Distribution: 311 (Isbrücker, Nijssen, 1988; Melo et al., 2014).