Checklist / Glossiphoniidae / Helobdella / Helobdella robusta
Helobdella robusta
· Glossiphoniidae
External morphology
Dorsum with 5 narrow longitudinal stripes which extend unbroken along the body, white spots on every annulus concentrated in the regions between stripes, brown chromatophores grouped on the dorsal surface in a reliable pattern of narrow longitudinal stripes which extend unbroken throughout most of the body's length, papillae smaller than width of annulus, white pigment spots may occur on every annulus (instead of just the central annulus as in H. austinensis
Internal morphology
5 pairs of crop caeca which are bilobed and smooth
Habitat & range
- Habitat
- Freshwater
- Region
- North America
- Recorded from
- USA, Canada
Biology
California
Original description
Shankland, Marty; Bissen, Shirley T.; Weisblat, David A. (1992). Description of the Californian leech Helobdella robusta sp.nov., and comparison with Helobdella triserialis on the basis of morphology, embryology, and experimental breeding. Canadian Journal of Zoology. 70(6): 1258-1263.