Retraction to " Protocatechuic acid attenuates cerebral aneurysm formation and progression by inhibiting TNF-alpha / Nrf- 2 / NF-kB-mediated inflammatory mechanisms in experimental rats ". Author Xiao, Gang Author Zhang, Mei Author Peng, Xing Author Jiang, Guangyuan text Mammalia 2019 Warsaw, Poland 83 3 227 236 http://dx.doi.org/10.1515/biol-2022-0808 journal article 10.1515/mammalia-2018-0049 1864-1547 10832949 Ctenomys dorsalis Thomas 1900 Holotype “Female. Original Number 255. Collected 7th May, 1900” by John Graham Kerr ( Thomas 1900:285 ) ( Figures 1 and 2 ). The specimen is housed at the British Museum [Natural History Museum, London]. The date of collection was questioned by Contreras and Roig (1992) , who suggested that J. G. Kerr had captured this species during his travels in 1889–1891 or 1896–1897. Contreras and Roig (1992) argued that the time period between the date of collection (7th May, 1900) and publication (before the year 1900 ended) was too short for the specimen to have made the trip from Paraguay to London. An additional fact is that J. G. Kerr was in London throughout 1900. Type locality Imprecisely as “Northern Chaco of Paraguay ” by Thomas (1900:285) in the original description; Contreras and Roig (1992) , based on the itineraries of its collector, J. G. Kerr, suggested that its type locality is presumably located at the Department of Presidente Hayes (see discussion below) ( Figure 3 ).