List of Freshwater Fishes reported from Guatemala
n = 169
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Table 1: 166 species currently present in the country/island (endemic, native, introduced, reintroduced);
Table 2: 1 species possibly present in the country/island (stray, questionable);
Table 3: 2 species demonstrated to be absent in the country/island (extirpated, not established, misidentification, error).
Table 4: 169 species reported from the country/island altogether.
Table : 169 .
     
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Family Species Author Info Occurrence Common names Abundance Max length Maturity Remark Photo
Achiridae Achirus mazatlanus (Steindachner, 1869) Fr, Br, M native   22.50 cm TL male/unsexed   
Poeciliidae Alfaro huberi (Fowler, 1923) Fr native   5.00 cm TL male/unsexed ;7.00 cm female   
Cichlidae Amatitlania nigrofasciata (Günther, 1867) Fr native  Serica (Spanish)  10.00 cm SL male/unsexed  Type locality, Lake Amatitlán (apparently not Lake Atitlán), BMNH 1865.4.19.76 (lectotype of Amatitlania nigrofasciata, 6.4 cm SL). Known from the Pacific slope, Rio Suchiate; from the Atlantic slope in Río Jutiapa (Ref. 74403). Also Ref. 6466, 1739. 
Cichlidae Amphilophus margaritifer (Günther, 1862) Fr endemic  scarce (very unlikely) 12.70 cm SL male/unsexed  Known from Lake Peten. 
Anablepidae Anableps dowii Gill, 1861 Fr native   22.00 cm TL male/unsexed ;34.00 cm TL female   
Engraulidae Anchoa belizensis (Thomerson & Greenfield, 1975) Fr native   5.80 cm SL male/unsexed  Reported from Rio Dulce and Lake Yzabel (Ref. 189). 
Engraulidae Anchoa curta (Jordan & Gilbert, 1882) Fr, Br, M native   8.90 cm TL male/unsexed   
Engraulidae Anchoa parva (Meek & Hildebrand, 1923) Fr, Br, M native   9.10 cm TL male/unsexed   
Anguillidae Anguilla rostrata (Lesueur, 1817) Fr, Br, M native   152 cm TL male/unsexed ;122 cm TL female   
Sciaenidae Aplodinotus grunniens Rafinesque, 1819 Fr native  common (usually seen) 95.00 cm TL male/unsexed  Known from the Usumacinta River (Ref. 36888). 
Ariidae Ariopsis assimilis (Günther, 1864) Fr, Br native   35.00 cm TL male/unsexed  Also Ref. 58022. 
Ariidae Ariopsis seemanni (Günther, 1864) Fr, Br, M native   39.50 cm TL male/unsexed   
Cichlidae Astatheros macracanthus (Günther, 1864) Fr native   25.00 cm SL male/unsexed  Found in Rio Motagua. Known also from the Rio Lempa to the Rio Paz. Also Ref. 12251. 
Characidae Astyanax aeneus (Günther, 1860) Fr native   7.50 cm SL male/unsexed ;12.00 cm SL female   
Characidae Astyanax bacalarensis Schmitter-Soto, 2017 Fr native   9.48 cm SL male/unsexed  Found in Mopán (Ref. 118583).  No picture yet.
Characidae Astyanax baileyi (Rosen, 1972) Fr native   6.85 cm SL male/unsexed  Found in the Usumacinta River basin (Ref. 38376). 
Characidae Astyanax cubilhuitz Schmitter-Soto, 2017 Fr native  Cubilhuitz tetra (Spanish), Sardinita del Cubilhuitz (Spanish)  5.30 cm SL male/unsexed  Known from Río Dolores, a stream near Cubilhuitz isolated by a subterranean segment, Alta Verapaz (Ref. 118583).  No picture yet.
Characidae Astyanax dorioni (Rosen, 1970) Fr native   19.30 cm SL male/unsexed  Found in the Usumacinta River basin (Ref. 38376).  No picture yet.
Characidae Astyanax fasciatus (Cuvier, 1819) Fr native   17.10 cm TL male/unsexed   
Atherinopsidae Atherinella argentea Chernoff, 1986 Fr, Br, M native   11.10 cm SL male/unsexed   
Atherinopsidae Atherinella guatemalensis (Günther, 1864) Fr, Br, M native   7.50 cm SL male/unsexed  Ranges eastward to Salína de Acapán (Ref. 9273). 
Atherinopsidae Atherinella guija (Hildebrand, 1925) Fr native    Occurrence in country (Dyer, pers. comm).  No picture yet.
Atherinopsidae Atherinella meeki (Miller, 1907) Fr native    Type locality, Río Montagua, east coast of Guatemala (Ref. 26282).  No picture yet.
Lepisosteidae Atractosteus tropicus Gill, 1863 Fr native   125 cm TL male/unsexed   
Gobiidae Awaous banana (Valenciennes, 1837) Fr native   30.00 cm SL male/unsexed ;24.38 cm SL female  Known from Escuintla, Santa Rosa, Izabal and Zacapa. 
Batrachoididae Batrachoides goldmani Evermann & Goldsborough, 1902 Fr native   21.60 cm SL male/unsexed  Recorded from El Petén and Alta Verapaz (Ref. 30719). 
Batrachoididae Batrachoides waltersi Collette & Russo, 1981 Fr, Br, M native   29.20 cm SL male/unsexed   
Poeciliidae Belonesox belizanus Kner, 1860 Fr native   20.00 cm TL male/unsexed ;15.00 cm TL female   
Poeciliidae Brachyrhaphis hartwegi Rosen & Bailey, 1963 Fr native   3.50 cm TL male/unsexed ;5.00 cm female   
Bryconidae Brycon guatemalensis Regan, 1908 Fr native   59.00 cm TL male/unsexed  Occurs in the Grijalva River (Ref. 6858). 
Carcharhinidae Carcharhinus leucas (Müller & Henle, 1839) Fr, Br, M native   360 cm TL male/unsexed ;400 cm TL female  Found in Lake Ysabel.  
Poeciliidae Carlhubbsia kidderi (Hubbs, 1936) Fr native   5.00 cm TL male/unsexed ;6.00 cm female  Found in Alta Vera Paz. 
Poeciliidae Carlhubbsia stuarti Rosen & Bailey, 1959 Fr native   5.50 cm SL male/unsexed ;4.50 cm female  Known from the Rio Polochic system and Lake Izabal. Also Ref. 42936. 
Ariidae Cathorops aguadulce (Meek, 1904) Fr native   22.70 cm SL male/unsexed  Known from Izabal Lake (Ref. 58032). Materials examined from the río Usumacinta and Izabal Lake basins, formerly considered as Cathorops aguadulce, are treated as Cathorops kailolae by Marceniuk & Betancur-R., 2008 (Ref. 75004).  No picture yet.
Ariidae Cathorops fuerthii (Steindachner, 1876) Fr, Br, M native   28.00 cm TL male/unsexed   
Ariidae Cathorops kailolae Marceniuk & Betancur-R., 2008 Fr native  Kailola's sea catfish (English), Bagre de Kailola (Spanish)  25.40 cm SL male/unsexed  Known from lago Izabal basin and rio Usumacinta basin (Ref. 75004). 
Ariidae Cathorops melanopus (Günther, 1864) Fr native   23.00 cm TL male/unsexed  Known from the Rio Motagua (Ref. 6868, 75004). 
Ariidae Cathorops steindachneri (Gilbert & Starks, 1904) Fr, Br, M native   36.00 cm TL male/unsexed   
Centropomidae Centropomus ensiferus Poey, 1860 Fr, Br, M native   36.19 cm TL male/unsexed   
Centropomidae Centropomus nigrescens Günther, 1864 Fr, Br, M native   123 cm TL male/unsexed   
Centropomidae Centropomus parallelus Poey, 1860 Fr, Br, M native   72.00 cm TL male/unsexed   
Centropomidae Centropomus pectinatus Poey, 1860 Fr, Br, M native   56.00 cm TL male/unsexed   
Cichlidae Chiapaheros grammodes (Taylor & Miller, 1980) Fr native   20.30 cm SL male/unsexed  Known from the Rio Lagartero, Huehuetenango. Also Ref. 7335, 36377. 
Cichlidae Cichlasoma trimaculatum (Günther, 1867) Fr native   36.50 cm SL male/unsexed ;25.00 cm TL female  Also Ref. 1739. 
Cichlidae Cincelichthys bocourti (Vaillant & Pellegrin, 1902) Fr native   20.00 cm SL male/unsexed  Known from the Lago de Izabal and the lower Rio Polochic. Also Ref. 42936. 
Cichlidae Cincelichthys pearsei (Hubbs, 1936) Fr native   20.00 cm SL male/unsexed   
Cyclopsettidae Citharichthys gilberti Jenkins & Evermann, 1889 Fr, Br, M native   27.00 cm TL male/unsexed  In range Ref. 11482. 
Cichlidae Cribroheros longimanus (Günther, 1867) Fr native  Viejito (Spanish), Red breast cichlid (English), Viejitos (Spanish)  13.50 cm SL male/unsexed  Found in Rio Nahualte. 
Cichlidae Cribroheros robertsoni (Regan, 1905) Fr native   19.00 cm SL male/unsexed  Occurs in the Lago Peten basin. 
Cichlidae Cryptoheros cutteri (Fowler, 1932) Fr native   11.20 cm SL male/unsexed  Known from Ríos Achuelo, Matasano, and others (Ref. 74403). 
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