Erpobdella parva

External morphology

Size of adults raninging between 25-30mm. Grayish brown color interrupted by transverse rows of yellow pigmentation spots on each annulus with a variable middorsal stripe, genital pores separated by 2.5-4 annuli, male gonopores elevated on ring, 4 pairs of eyes, uniform dorsal coloration.

Internal morphology

atrium with simply curved cornua; preatrial loops present

Habitat & range

Habitat

Freshwater

Region

North America

Recorded from

Canada, USA