Hyalella montezuma

{{Short description|Species of crustacean}}

{{Speciesbox

|status = G1

|status_system = TNC

|status_ref = {{cite web | url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.840713/Hyalella_montezuma| title=NatureServe Explorer 2.0 }}

| taxon = Hyalella montezuma

| authority = Cole & Watkins, 1977

}}

Hyalella montezuma is a pelagic amphipod. It lives in Montezuma Well, an oasis in central Arizona. It is the only food of the endemic leech Motobdella montezuma.{{cite journal |last1=Blinn |first1=Dean W. |last2=Davies |first2=Ronald W. |last3=Dehdashti |first3=Behrooz |title=Specialized pelagic feeding by Erpobdella montezuma (Hirudinea) |journal=Holarctic Ecology |date=1987 |volume=10 |issue=3 |pages=235–240 |jstor=3682581 }}