American Terrestrial Leech - Encyclopedia of Alabama

8 Animals That Suck (Blood)

Pathogens, Free Full-Text

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

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

A New Species of Blood-Sucking Leech Found In North America for First Time Since 1975 - Interesting Engineering

Insects, Free Full-Text

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Leeches in the extreme: Morphological, physiological, and behavioral adaptations to inhospitable habitats - ScienceDirect

Smithsonian Insider – Discovery in Smithsonian collection broadens understanding of rare North American leech

Measuring protected-area effectiveness using vertebrate distributions from leech iDNA

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Leeches - Encyclopedia of Arkansas

Water, Free Full-Text

Leeches - Encyclopedia of Arkansas