American Terrestrial Leech - Encyclopedia of Alabama

Classification and Checklist of Leeches (Phylum Annelida: Class Clitellata: Order Hirudinida) in North America north of Mexico – Mark J. Wetzel

Insects, Free Full-Text

Rare leech, now a newly named species, was discovered in an Alloway Township yard

Are there leeches in Alabama? - Quora

e-WV Invertebrates

Freshwater Invertebrates - Encyclopedia of Alabama

A new species of Haemopis (Annelida: Hirudinea): Evolution of North American terrestrial leeches - ScienceDirect

Piscicola, leech genus

Land leech, annelid