| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Streptomyces ziwulingensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces zinciresistens | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces zhihengii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces zhaozhouensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces zaomyceticus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces zagrosensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yunnanensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces youssoufiensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yokosukanensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yogyakartensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yerevanensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yeochonensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yatensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yanii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yangpuensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yanglinensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces yaanensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xylanilyticus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xishensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xinghaiensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xiangtanensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xiamenensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xanthophaeus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xantholiticus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces xanthochromogenes | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces wuyuanensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces werraensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces wellingtoniae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces wedmorensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Streptomyces vitaminophilus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |