%0 Journal Article %A Vela, Ana I. %A Casas-Díaz, Encarna %A Lavín, Santiago %A Domínguez, Lucas %A Fernández-Garayzábal, Jose F. %T Streptococcus pharyngis sp. nov., a novel streptococcal species isolated from the respiratory tract of wild rabbits %D 2015 %J International Journal of Systematic and Evolutionary Microbiology, %V 65 %N Pt_9 %P 2903-2907 %@ 1466-5034 %R https://doi.org/10.1099/ijs.0.000351 %I Microbiology Society, %X Four isolates of an unknown Gram-stain-positive, catalase-negative coccus-shaped organism, isolated from the pharynx of four wild rabbits, were characterized by phenotypic and molecular genetic methods. The micro-organisms were tentatively assigned to the genus Streptococcus based on cellular morphological and biochemical criteria, although the organisms did not appear to correspond to any species with a validly published name. Comparative 16S rRNA gene sequencing confirmed their identification as members of the genus Streptococcus, being most closely related phylogenetically to Streptococcus porcorum 682-03T (96.9  % 16S rRNA gene sequence similarity). Analysis of rpoB and sodA gene sequences showed divergence values between the novel species and S. porcorum 682-03T (the closest phylogenetic relative determined from 16S rRNA gene sequences) of 18.1 and 23.9  %, respectively. The novel bacterial isolate could be distinguished from the type strain of S. porcorum by several biochemical characteristics, such as the production of glycyl-tryptophan arylamidase and α-chymotrypsin, and the non-acidification of different sugars. Based on both phenotypic and phylogenetic findings, it is proposed that the unknown bacterium be assigned to a novel species of the genus Streptococcus, and named Streptococcus pharyngis sp. nov. The type strain is DICM10-00796BT ( = CECT 8754T = CCUG 66496T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.000351