Nasal leeches

Information and Technology Report



Bloodsucking leeches of the genus Theromyzon sp. are the only leeches in North America known to feed directly in the nasal passages, trachea, and beneath the nictitating membrane of the eyes of migratory birds. Three species of nasal leeches have been reported from North America, T. rude, T. tessulatum, and T. biannulatum. Other genera of leeches feed on the exposed surfaces of waterfowl.

Publication type Report
Publication Subtype Federal Government Series
Title Nasal leeches
Series title Information and Technology Report
Year Published 1999
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) National Wildlife Health Center
Description 4 p.
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title Field manual of wildlife diseases: General field procedures and diseases of birds
First page 245
Last page 248
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