CHARACIDAE, Latreille, 1825

Sánchez, Alberto J., Álvarez-Pliego, Nicolás, Espinosa-Pérez, Héctor, Florido, Rosa, Macossay-Cortez, Alberto, Barba, Everardo, Salcedo, Miguel Ángel & Garrido-Mora, Arturo, 2019, Species richness of urban and rural fish assemblages in the Grijalva Basin floodplain, southern Gulf of Mexico, Cybium 43 (3), pp. 239-254 : 252

CHARACIDAE

1a. Maxillary teeth in 3-4 series....................................................... Brycon guatemalensis ( Fig. 2.5 ) 1b. Maxillary teeth in 1 or 2 series.........................2

2a. One series of premaxillary teeth; and black spot on the anterobasal area of the dorsal fin....................................................... Hyphessobrycon compressus ( Fig. 3.3 )

2b. Two series of premaxillary teeth; lower limb gill rakers in first arch 9......................... Astyanax finitimus ( Fig. 4.3 )

Figures

Figure 2. – Fish distributed in the Vil- lahermosa city and rural areas in the Grijalva floodplain. 1 – Atractosteus tropicus, 2 – Megalops atlanticus, 3 – Ctenopharyngodon idella, 4 – Cypri- nus carpio, 5 – Brycon guatemalensis, and 6 – Petenia splendida.

Figure 3. – Fish distributed in the Villahermosa city and rural areas in the Grijalva floodplain. 1 – Anchoa mitchilli, 2 – Brevoortia gunteri, 3 – Hyphessobrycon compressus, 4 – Batrachoides goldmani, 5 – Dormitator maculatus, 6 – Eleotris amblyopsis, 7 – Gobiomorus dormi- tor, 8 – Oreochromis aureus, 9 – Rocio octofasciata, 10 – Thorichthys helleri, 11 – T. meeki, 12 – T. pasionis, 13 – Trichromis salvini, 14 – Atherinella alvarezi, 15 – Cynodonichthys tenuis, 16 – Belonesox belizanus, 17 – Carlhubbsia kidderi, 18 – Gambusia sexradiata, 19 – G. yucatana, 20 – Pseudoxiphophorus bimaculatus, 21 – Heterophallus echeagarayi, 22 – Phallichthys fairweatheri, 23 – Poecilia kykesis, 24 – P. mexicana. 25 – Xiphophorus maculatus, 26 – Achirus lineatus, and 27 – Microphis lineatus.

Figure 4. – Fish distributed in the Villahermosa city and rural areas in the Grijalva floodplain. 1 – Dorosoma anale, 2 – D. petenense, 3 – Astyanax finitimus, 4 – Pterygoplichthys spp., 5 – Cathorops aguadulce, 6 – Rhamdia guatemalensis, 7 – Cincelichthys pearsei, 8 – Cribro- heros robertsoni, 9 – Mayaheros urophthalmus, 10 – Oreochromis niloticus. 11 – Oscura heterospila, 12 – Parachromis friedrichsthalii, 13 – Parachromis managuensis, 14 – Vieja bifasciata, 15 – V. melanurus, 16 – Hyporhamphus mexicanus, 17 – Strongylura hubbsi, 18 – Ophisternon aenigmaticum, 19 – Centropomus undecimalis, 20 – Diapterus auratus, and 21 – Eugerres mexicanus.