Killi-Data Series 2016-2017 [24 pages, as a print, ISBN 979-10-93353-04-3, and as a PDF document, ISBN 979-10-93353-05-0]
Killi-Data Series 2016-2017, 13-23, 9 figs.
Miscellaneous comments on Haplochilus marnoi and bifasciatus Steindachner, 1881, with lectotype designations, on the identity of Rivulus rachovii Ahl, 1925 with suggested revalidation, and on the ICZN availability or not of two synonymized taxa.
Abstract: The author discusses 3 systematic and nomenclatural cases emerged from recent knowledge. First, Haplochilus marnoi Steindachner, 1881 is restudied along the history of its discovery and collection, together with Haplochilus bifasciatus Steindachner, 1881, their common type locality is localized according to an old map of year 1881 and writings by the discoverer Ernst Marno and lectotypes for both are designated following a brief stay in Vienna Museum premises, as a first step to a possible future revalidation of the former, once live collections will have been succeeded not too far from fixed type locality. Second, the analysis of published data on Rivulus rachovii Ahl, 1925 and of the published description of Atlantirivulus paranaguensis Costa, 2011 show that they may correspond to the same species due to an error in transcription of the type locality of the former, suggesting a possible synonymization of the latter. Finally following recent molecular evidence that Aphanius dispar is represented by several biological distinct species, the nomenclatural availability of Cyprinodon darrorensis Gianferrari, 1933 is reviewed and appears doubtful, according to the compulsory diagnosis in prevailing ICZN rules since 1931, likewise Haplochilus carlislei Horst, 1934 among published descriptions during the years 1931 to 1934.