Type specimens of the species of Cycloramphus Tschudi, 1838 (Anura, Cycloramphidae) in the collections of the Museu Nacional, Rio de Janeiro, Brazil Author Caramaschi, Ulisses 0000-0003-1534-1038 Universidade Federal do Rio de Janeiro, Museu Nacional, Departamento de Vertebrados, Quinta da Boa Vista, São Cristóvão, 20940 - 040 Rio de Janeiro, RJ, Brasil & E-mail: ulisses @ acd. ufrj. br; https: // orcid. org / 0000 - 0003 - 1534 - 1038 ulisses@acd.ufrj.br Author Pombal Jr, José P. 0000-0003-4900-630X Universidade Federal do Rio de Janeiro, Museu Nacional, Departamento de Vertebrados, Quinta da Boa Vista, São Cristóvão, 20940 - 040 Rio de Janeiro, RJ, Brasil & E-mail: pombal @ acd. ufrj. br; https: // orcid. org / 0000 - 0003 - 4900 - 630 X pombal@acd.ufrj.br text Zootaxa 2023 2023-09-01 5339 5 465 480 http://dx.doi.org/10.11646/zootaxa.5339.5.4 journal article 265696 10.11646/zootaxa.5339.5.4 6b49d78a-4150-4918-8ff0-e1332ad0e7de 1175-5326 8309439 E52F7463-561D-415A-9A37-74CD18F6FB65 Zachaenus carvalhoi Izecksohn, 1983 Zachaenus carvalhoi Izecksohn, 1983 “1982”: 7, figs. 1–2. Current name. Cycloramphus carvalhoi ( Izecksohn, 1983 ) — Dubois et al. 2021: 178 , by implication. Paratype . MNRJ 4169 , adult male, collected at the type locality by O.L. Peixoto , C.A.G. Cruz , and E. Izecksohn , in 28–29 October 1981 . Type locality. “Santa Tereza, Estado do Espírito Santo , Brasil”. Here updated for Municipality of Santa Teresa ( 19 o 56’S , 40 o 36’W ; Datum WGS 84; 90– 1.040 m a.s.l. ), State of Espírito Santo , Brazil . Remarks. The genus Zachaenus Cope, 1866 was synonymized with Cycloramphus Tschudi, 1838 by Dubois et al. (2021: 686) . However, Dubois et al. (2021) failed to observe that, in proposing the synonymy, two valid species names were now secondary homonyms, viz ., Cycloramphus carvalhoi ( Izecksohn, 1983 “1982”) and Cycloramphus carvalhoi Heyer, 1983 , as pointed out by Segalla et al. (2021: 124) . Since Cycloramphus carvalhoi ( Izecksohn, 1983 “1982”) has priority as the senior homonym, the species described by Heyer (1983) required a nomen novum (see below).