Laurent Falquet and Joerg Jores contributed equally as co-last authors.ABSTRACT Mycoplasma feriruminatoris is a fast-growing and genetically tractable mycoplasma species. We sequenced the Swiss strain IVB14/OD_0535, isolated from an Alpine ibex. This strain has a circular genome of 1,027,435 bp with a GϩC content of 24.3%. It encodes 835 open reading frames (ORFs), 2 rRNA operons, and 30 tRNAs.M ycoplasma feriruminatoris is phylogenetically closely related to the Mycoplasma mycoides cluster (1), which encompasses the etiological agents of contagious bovine (CBPP) and caprine pleuropneumonia (CCPP), two of the most severe diseases affecting cattle and goats, respectively. To date, the mode of infection and pathogenicity of M. feriruminatoris toward wild and domestic ruminants are still unclear.M. feriruminatoris strain IVB14/OD_0535 was isolated in 2014 from the liver, spleen, and kidney of a 2-month-old Alpine ibex (Capra ibex) which died of septicemia at the Tierpark Dählhölzli (Bern, Switzerland). The organs were cultured at 37°C on tryptone soy agar (TSA-SB; Becton, Dickinson) supplemented with 5% (vol/vol) sheep blood. Mycoplasma-like colonies were subcultivated on mycoplasma agar (MS; Mycoplasma Experience Ltd.), filter cloned three consecutive times, and identified as Mycoplasma feriruminatoris using matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry (Microflex LT/SH system; Bruker).Genomic DNA was extracted using phenol-chloroform extraction and isopropanol precipitation (2). The quality and quantity of the genomic DNA were assessed on agarose gel and using the Qubit fluorometer (Invitrogen). High-molecular-weight DNA was sheared in a Covaris g-TUBE (Covaris) to obtain 10-kb fragments. DNA was used to prepare a barcoded SMRTbell library with the PacBio SMRTbell template prep kit v.