Species that contain: Rivulus and tenuis [ 4 ] records

godmani, Rivulus Regan [C. T.] 1907:65 [Annals and Magazine of Natural History (Series 7) v. 19 (no. 109) (art. 6); ref. 15174] Guatemala. Lectotype: BMNH 1885.5.24.39-40 (female). Paralectotypes: BMNH 1885.5.24.39-40 (1). Originally as godmanni with collector as Godman. Emended by Regan 1907:81-83, Pl. 10 (fig. 5) [ref. 3629] to godmani, also spelled godmani by Regan 1912:499 [ref. 3648]. Lectotype selected in Huber 1992:218 [ref. 20639]. •Synonym of Rivulus tenuis (Meek 1904) -- (Huber 1992:218 [ref. 20639], Lazara 2001:285 [ref. 25711], Costa in Reis et al. 2003:539 [ref. 27061], Miller 2006:208 [ref. 28615]). •Valid as Cynodonichthys godmani (Regan 1907) -- (Costa 2011:242 [ref. 31655]). •Valid as Rivulus godmani Regan 1907 -- (Collier 2016:42 [ref. 35018]). Current status: Valid as Cynodonichthys godmani (Regan 1907). Rivulidae: Rivulinae. Distribution: Middle America: Guatemala and Mexico. Habitat: freshwater.

hendrichsi, Rivulus Álvarez [J.] & Carranza [J.] 1952:281, Figs. 1-2 [Ciencia (Mexico City) v. 11 (nos 10-12) 1951; ref. 12633] Salto de Agua, Chiapas, southeastern Mexico. Holotype: IBUNAM (number unknown). Paratypes: (22) UMMZ 163237 (2), CAS-SU 17487 (2). Type catalog: Böhlke 1953:54 [ref. 12291], Huber 1992 [ref. 20639]. •Synonym of Rivulus tenuis (Meek 1904) -- (Huber 1992:233 [ref. 20639], Lazara 2001:285 [ref. 25711], Costa in Reis et al. 2003:539 [ref. 27061], Miller 2006:208 [ref. 28615]). •Valid as Cynodonichthys hendrichsi (Álvarez & Carranza 1952) -- (Costa 2011:242 [ref. 31655]). •Synonym of Cynodonichthys tenuis Meek 1904. Current status: Synonym of Cynodonichthys tenuis Meek 1904. Rivulidae: Rivulinae. Habitat: freshwater.

myersi, Rivulus Hubbs [C. L.] 1936:210, Pl. 2 (figs. 1-2) [Carnegie Institution of Washington Publications No. 457 (art. 17); ref. 2247] 3 kilometers south of Progreso, Yucatán, Mexico. Holotype: UMMZ 102140. Paratypes: UMMZ 102141 (1). Type catalog: Huber 1992 [ref. 20639]. •Valid as Rivulus myersi Hubbs 1936 -- (Castro-Aguirre et al. 1999:216 [ref. 24550]). •Synonym of Rivulus tenuis (Meek 1904) -- (Huber 1992:330 [ref. 20639], Lazara 2001:285 [ref. 25711], Costa in Reis et al. 2003:539 [ref. 27061]). •Valid as Cynodonichthys myersi (Hubbs 1936) -- (Costa 2011:242 [ref. 31655]). •Synonym of Cynodonichthys tenuis Meek 1904. Current status: Synonym of Cynodonichthys tenuis Meek 1904. Rivulidae: Rivulinae. Habitat: freshwater.

tenuis, Cynodonichthys Meek [S. E.] 1904:101, Fig. 27 [Field Columbian Museum, Zoölogical Series v. 5; ref. 2958] El Hule, Oaxaca, Mexico. Holotype (unique): FMNH 4643. Type catalog: Ibarra & Stewart 1987:30 [ref. 12367]. •Valid as Cynodonichthys tenuis Meek 1904 -- (Costa 2011:242 [ref. 31655]). •Valid as Rivulus tenuis (Meek 1904) -- (Huber 1992:428 [ref. 20639], Espinosa Pérez et al. 1993:38 [ref. 22290], Greenfield & Thomerson 1997:98 [ref. 22947], Murphy & Collier 1997:797 [ref. 25585], Lazara 2001:284 [ref. 25711], Costa in Reis et al. 2003:539 [ref. 27061], Nelson et al. 2004:101 [ref. 27807], Miller 2006:208 [ref. 28615], Costa 2006:139 [ref. 28875] in subgenus Cynodonichthys, Scharpf 2007:11 [ref. 30398], Matamoros et al. 2009:12 [ref. 31241], Page et al. 2013:103 [ref. 32708], Collier 2016:41 [ref. 35018]). •Valid as Cynodonichthys tenuis Meek 1904 -- (Costa 2011:242 [ref. 31655], Lozano-Vilano & De la Maza-Benignos 2016:5 [ref. 35401], Page et al. 2023:140 [ref. 40505], Quintana 2024:7 [ref. 41186]). Current status: Valid as Cynodonichthys tenuis Meek 1904. Rivulidae: Rivulinae. Distribution: Southern North America, central America: Atlantic Slope river basins (Belize, Guatemala, Honduras and Mexico). Habitat: freshwater.