Checklist / Glossiphoniidae / Theromyzon / Theromyzon trizonare
Theromyzon trizonare
· Glossiphoniidae
External morphology
No striped pattern, olive green with irregularly distributed cream-yellow or brown maculations on dorsal side, dorsal part of posterior sucker with 7-8 radiating brownish stripes, 3 annuli between gonopores, two female pores opening to the exterior
Internal morphology
atrial cornua at terminal ends of paired male ducts
Habitat & range
- Habitat
- Freshwater
- Region
- North America
- Recorded from
- Ontario, Saskatchewan and Alberta Canada
Original description
Davies, R. W.; Oosthuizen, J. H. (1993). A new species of duck leech from North America formerly confused with Theromyzon rude (Rhynchobdellida: Glossiphoniidae). Canadian Journal of Zoology. 71(4): 770-775.