calabazas, Notropis Lyons [J.] & Mercado-Silva [N.] 2004:869, Fig. 2 [Copeia 2004 (no. 4); ref. 28048] Río Calabazas above Mexican highway 69 bridge at Plazuela, 15 kilometers south-southeast of the city of Río Verde, San Luis Potosí, Mexico, 21.791°N, 99.924'W. Holotype: ENCB IPN P5721. Paratypes: ENCB IPN 5722 (5); TU 196422 (3); UNAM-CNPE 3511 (1); UMMZ 242082 (3); UWZM 11693 (1), 11694 (4). •Valid as Notropis calabazas Lyons & Mercado-Silva 2004 -- (Scharpf 2005:28 [ref. 28940], Domínguez-Domínguez et al. 2009:161 [ref. 30768], Page et al. 2013:74 [ref. 32708]). •Valid as Aztecula calabazas (Lyons & Mercado-Silva 2004) -- (Stout et al. 2022:15 [ref. 39738], Page et al. 2023:67 [ref. 40505]). Current status: Valid as Aztecula calabazas (Lyons & Mercado-Silva 2004). Leuciscidae: Pogonichthyinae. Distribution: Southern North America: San Luis Potosí (Mexico). Habitat: freshwater.