| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Ardenticatenia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticiflavibacter luteus T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticiflavibacter | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticibacterium luteifluviistationis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticibacterium | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticibacter tournemirensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticibacter svalbardensis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticibacter pallidicorallinus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticibacter eurypsychrophilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcticibacter | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter venerupis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter trophiarum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter thereius | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter suis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter skirrowii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter pacificus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter nitrofigilis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter mytili | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter molluscorum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter marinus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter lanthieri | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter lacus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter halophilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter faecis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter ellisii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter ebronensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter defluvii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter cryaerophilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter cloacae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Arcobacter cibarius | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |