Table 1.

Distance matrix of 16S rRNA gene identities (in %) for all members of the candidate family Tenuibacteraceae (1–13) and the type species of Holosporaceae (14) and Rickettsiaceae (15).

	1	2	3	4	5	6	7	8	9	10	11	12	13	14
1	100
2	99.8	100
3	99.8	99.7	100
4	99.5	99.3	99.3	100
5	89.6	89.5	89.7	88.9	100
6	88.0	87.8	87.9	87.3	88.5	100
7	88.6	88.4	88.5	87.3	88.3	87.4	100
8	88.8	88.7	88.9	88.2	88.5	87.7	95.1	100
9	85.5	85.4	85.5	85.0	85.7	84.6	85.4	85.7	100
10	85.1	85.1	85.2	84.1	85.3	83.8	84.5	84.7	85.4	100
11	85.3	85.1	85.1	83.8	85.0	83.3	84.7	84.8	85.3	93.3	100
12	84.6	84.6	84.6	84.4	84.1	81.5	84.1	84.3	85.3	84.4	84.5	100
13	82.4	82.3	82.4	82.4	83.5	80.9	82.9	82.7	84.8	84.6	84.9	84.0	100
14	81.8	81.6	81.7	82.1	80.5	80.6	80.2	81.3	82.7	81.7	81.5	82.0	81.6	100
15	80.6	80.6	80.7	79.4	82.2	79.8	80.8	83.5	81.9	81.9	81.6	81.9	81.8	83.4

Dark gray shading, Cand. Tenuibacter priapulorum; light gray shading, other members of Tenuibacteraceae; no shading, outgroup. 1, Cand. T. priapulorum 2011; 2, Cand. T. priapulorum 2007; 3, Cand. T. priapulorum 2008; 4, Cand. T. priapulorum 2004; 5, D. magna uncultured bacterium; 6, Cand. Hepatincola porcellionum; 7, E. imperialis uncultured gut bacterium; 8, D. opuntiae uncultured bacterium; 9, S. maritima uncultured bacterium; 10, E. sinensis uncultured gut bacterium DQ856522; 11, N. frasassianus uncultured bacterium; 12, T. putrecentiae uncultured bacterium; 13, E. sinensis uncultured gut bacterium DQ856561; 14, Holospora obtusa; 15, Rickettsia prowazekii.