Helobdella elongata (Castle, 1900)

Oceguera-Figueroa, Alejandro, Kvist, Sebastian, Watson, Sara C., Sankar, Dominic F., Overstreet, Robin M. & Siddall, Mark E., 2010, Leech Collections from Washington State, with the Description of Two New Species of Placobdella (Annelida: Glossiphoniidae), American Museum Novitates 2010 (3701), pp. 1-16 : 10

Helobdella elongata (Castle, 1900)

Figure 15

The absence of a chitinous nuchal scute as well as the presence of an unpigmented, nonpapillated, and subcylindrical body all correspond to the description of H. elongata . Washington specimens lacked obvious eyespots, a characteristic noticed for some individuals of this species elsewhere ( Klemm, 1982). Found on the underside of submerged rocks and wood.

Figures

FIGURES 14–19. Glossiphoniids found in Washington in this study; dorsal and ventral views, left and right respectively. 14. Glossiphonia elegans. 15. Helobdella elongata. 16. H. modesta. 17. Helobdella papillata. 18. Placobdella montifera. 19. Theromyzon cf. rude. Scale bars = 5 mm.