Nomenclatural priority of the diatom name Fryxelliella sepulvedana over Fryxelliella pacifica (Triceratiaceae, Bacillariophyta)

Abstract

In 2008 two new species belonging to the genus Fryxelliella were described: F. sepulvedana and F. pacifica. They were based on material collected in the Pacific Ocean and were both different from Fryxelliella floridana, the type species of the genus. Examination of holotype and additional material for F. sepulvedana and F. pacifica was carried out. Comparisons confirmed that F. sepulvedana and F. pacifica are both the same species. Only one valid name can be assigned to any taxon and reasons are given to demonstrate that the valid name should be Fryxelliella sepulvedana.

Morphological, taxonomic and nomenclatural analysis of species ofOdontella,TrieresandZygoceros(Triceratiaceae, Bacillariophyta) from Anegada Bay (Province of Buenos Aires, Argentina)

“…Sims.] Fryxelliella has circular valve, with three short elevations each bearing a small ocellus, rimoportulae evenly spaced between a pair of ocelli with short external tubes, and a sipho marginalis (Prasad & Nienow 2008, Meave del Castillo et al 2008, Aké-Castillo et al 2014. Zygoceros differs from Fryxelliella in having two short elevations with small ocelli, rimoportulae adjacent to the elevations, and by lacking a sipho marginalis.…”

Comments on the priority of Fryxelliella pacifica over Fryxelliella sepulvedana (Eupodiscaceae, Bacillariophyta)

“…There exists, however, different opinions concerning the priority of the two names, particularly Fryxelliella sepulvedana over F. pacifica (Aké-Castillo et al, 2014). The question as to which of the two names has priority is complex as the nominal date of publication is the same for both venues of publication, Phycological Research and Iheringia.…”