| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Williamsia maris | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Williamsia marianensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Williamsia limnetica | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Williamsia herbipolensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Williamsia faeni | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Williamsia deligens | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Williamsia aurantiaca | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Williamsia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wigglesworthia glossinidia T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wigglesworthia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenzhouxiangella sediminis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenzhouxiangella marina T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenzhouxiangella limi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenzhouxiangella | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenzhouxiangellaceae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenyingzhuangia marina T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenyingzhuangia heitensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenyingzhuangia gracilariae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenyingzhuangia fucanilytica | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenyingzhuangia aestuarii | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenyingzhuangia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenxinia saemankumensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenxinia marina T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Wenxinia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Weizmannia ginsengihumi | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Weizmannia coagulans T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Weizmannia acidiproducens | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Weizmannia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Weissella viridescens T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Weissella uvarum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |