- Volume 39, Issue 4, 1989

The type strain of Streptococcus mitis Andrewes and Horder 1906, 712 is strain NCTC 3165. This strain was arbitrarily designated as the type strain on the 1980 Approved Lists of Bacterial Names before adequate documentation of its characteristics. It is not an authentic strain of Andrewes and Horder; subsequent examination has indicated that it almost certainly is not representative of the species described by these authors, nor is it representative of strains widely recognized as S. mitis. We propose replacement of strain NCTC 3165 with strain NCTC 12261 as the type strain of S. mitis.