montium, Rivulus Hildebrand [S. F.] 1938:319, Fig. 9 [Field Museum of Natural History, Publications, Zoölogical Series v. 22 (no. 4); ref. 12363] Hillside trickle between Río Boquerón and Río Pequeni, Chagres basin, Panama. Holotype: MCZ 34880. Paratypes: FMNH 36661-62 (2), MCZ 61984 [ex MCZ 34880] (2), USNM 109119 (2). Additional material: (22) MCZ 34656 (6 or 8), USNM 78871 (9). Type catalog: Ibarra & Stewart 1987:76 [ref. 12367], Huber 1992 [ref. 20639]. •Possible synonym of Rivulus brunneus Meek & Hildebrand 1913 -- (Huber 1992:136 [ref. 20639], Etzel & Berkenkamp 1992:30 [ref. 32437]). •Valid as Rivulus montium Hildebrand 1938 -- (Berkenkamp & Etzel 1997:125 [ref. 23735], Lazara 2001:281 [ref. 25711], Costa in Reis et al. 2003:538 [ref. 27061], Costa 2006:139 [ref. 28875] in subgenus Cynodonichthys). •Valid as Cynodonichthys montium (Hildebrand 1938) -- (Costa 2011:242 [ref. 31655]). Current status: Valid as Cynodonichthys montium (Hildebrand 1938). Rivulidae: Rivulinae. Distribution: Central America: Atlantic river basins (Panama). Habitat: freshwater.