occurs only in Proverbs 30:15 (Heb. 'alukah); the generic name for any blood-sucking annelid. There are various species in the marshes and pools of Palestine. That here referred to, the Hoemopis, is remarkable for the coarseness of its bite, and is therefore not used for medical purposes. They are spoken of in the East with feelings of aversion and horror, because of their propensity to fasten on the tongue and nostrils of horses when they come to drink out of the pools. The medicinal leech (Hirudo medicinalis), besides other species of leeches, are common in the waters of Syria.
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.
[N] indicates this entry was also found in Nave's Topical Bible
Bibliography InformationEaston, Matthew George. "Entry for Horse-leech". "Easton's Bible Dictionary".