Cynodonichthys isthmensis (Garman 1895)

Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D. & Matamoros, Wilfredo A., 2023, Continental fishes of Nicaragua: diversity, distribution and conservation status; with an annotated and illustrated checklist of species and an identification guide to families, Zootaxa 5376 (1), pp. 1-89 : 58

Cynodonichthys isthmensis (Garman 1895) ( Fig. 9D ). Isthmian Rivulus; Olomina, Alumina, Olomina Saltona, Killi, Saltón, Killi del Istmo

Vouchers: UCR 0266-004 (5), 0361-004 (1), 0447-008 (2), 0459-003 (3), 0474-001 (3), 0475-001 (8), 1052-007 (9) and 1058-001 (21); other collections: IBUNAM 13843 (1), 13844 (1), 13845 (1), KU 18700 (1). Distribution: Central America; from southern Honduras to eastern Costa Rica, Atlantic and Pacific drainages; ( Nicaragua) Co, UI, WK, Pr, GM, KP, Es, BF, IM, To, Sa, SJ, RF and LN (Atlantic); 15–700 masl; Sec, Pot. Occurrence and conservation status: Nat; LC (2020), population trend unknown. Literature: Astorqui (1975: 156, as Rivulus isthmensis isthmensis —synonym; brief description, including illustrations and an identification key, and information on distribution and ecology), Villa (1982: 143, as R. isthmensis isthmensis —synonym; detailed description, including illustrations and an identification key, and information on distribution and ecology), Bussing (1998: 176, as R. isthmensis isthmensis —synonym; brief description, including illustrations and an identification key, and information on distribution, with a map, and ecology), González-Alemán (2006: 95, as Rivulus hildebrandt (Myers 1927) —misspelled and misidentification; brief description, including an illustration, and information on distribution and ecology), van den Berghe (2015: 37, as Rivulus rubripunctatus (Bussing 1980) —misidentification; listed, including an illustration and information on distribution and ecology) and Angulo (2021: 53; listed, including information on distribution).

Figures

FIGURE 9. Continental fishes of Nicaragua, part 4; (A) Parachromis managuensis (Cichlidae), Tributary of the Sarapiquí River (Sa), photo by Arturo Angulo, November 11, 2018; (B) Vieja maculicauda (Cichlidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Luis Fernando López, April 13, 2020; (C) Atherinella hubbsi (Atherinopsidae), Tributary of the Sarapiquí River (Sa), photo by Arturo Angulo, November 11, 2018; (D) Cynodonichthys isthmensis (Rivulidae), UCR 00475-001, La Gateada, Econdido River (Es), collected on April 19, 1970; (E) Alfaro cultratus (Poeciliidae), Tributary of the Sarapiquí River (Sa), photo by Arturo Angulo, November 11, 2018; (F) Belonesox belizanus (Poeciliidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Eric P. van den Berghe, November-December 2013; (G) Brachyrhaphis holdridgei (Poeciliidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Eric P. van den Berghe, April 8, 2014; (H) Priapichthys annectens (Poeciliidae), Tributary of the Sarapiquí River (Sa), photo by Arturo Angulo, November 11, 2018; (I) Anableps dowii (Anablepidae), Golfo de Fonseca, Pacífico de Nicaragua (PN), photo by Eric P. van den Berghe, November 16, 2019; (J) Tylosurus crocodilus (Belonidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Eric P. van den Berghe, November-December 2013; (K) Hyporhamphus unifasciatus (Hemiramphidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Eric P. van den Berghe, November-December 2013; (L) Dajaus monticola (Mugilidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Eric P. van den Berghe, April 5, 2014; (M) Joturus pichardi (Mugilidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Eric P. van den Berghe, April 5, 2014; (N) Gobiesox cephalus (Gobiesocidae), Tributary of the Escondido River (Es), photo by Alex Gallardo, June 11, 2019; (O) Lutjanus argentiventris (Lutjanidae), Punta Gorda, Blue Fields-Punta Gorda (BF), photo by Eric P. van den Berghe, April 23, 2014.