RT Journal Article SR Electronic(1) A1 Oren, Aharon A1 Schink, BernhardYR 2016 T1 Formation of names of genera of prokaryotes that end on -oides or -opsis. A proposal for addenda to Rule 65(2) and Appendix 9 of the International Code of Nomenclature of Prokaryotes JF International Journal of Systematic and Evolutionary Microbiology, VO 66 IS 6 SP 2452 OP 2453 DO https://doi.org/10.1099/ijsem.0.001031 PB Microbiology Society, SN 1466-5034, AB In view of the current confusion about the correct gender of genus names ending on –oides, and possible confusion in the future for genus names ending on –opsis, we propose non-retroactive addenda to Rule 65(2) and Appendix 9 of the International Code of Nomenclature of Prokaryotes so that new genera to be formed by adding the ending –oides to the stem of an existing genus name or another (Neo-) Latin word must be treated as neuter and genus names ending on –opsis are to be treated as feminine., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.001031