Established
| Common name (English) | |
|---|---|
| Herdmania momus | Brown Sea Squirt |
| Hermetia illucens | black soldier fly |
| Herpetogramma licarsisalis | Grass webworm, Tropical grass webworm |
| Heterotheca subaxillaris subaxillaris | Camphor daisy |
| Himantura uarnak | Honeycomb stingray |
| Hyalomma aegyptium | Tortoise tick |
| Hyalomma anatolicum | |
| Hyalopterus pruni | Mealy plum aphid |
| Hydroides dianthus | |
| Hydroides elegans | Calcareous tube worm |
| Hydroides heterocera | |
| Hypnea spinella | |
| Hypophthalmichthys molitrix | Silver carp |
| Hypselodoris infucata | |
| Icerya purchasi | Cottony cushion scale |
| Icerya seychellarum | Iceplant scale; Seychelles scale |
| Ictalurus punctatus | Channel catfish |
| Iris florentina | |
| Iris germanica | |
| Josephiella microcarpae |