Theromyzon, Philippi, 1867

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 : 11

Theromyzon , cf. rude (Baird, 1869)

Figure 19

The presence of four pairs of eyespots arranged in parallel, two annuli between gonopores, cylindrical male atrium and weakly developed atrial cornua agree with the description of Theromyzon rude (see Oosthuizen and Davies, 1993). The type locality of T. rude is in the Northwest at Great Bear Lake, Canada. Sawyer (1986) considered this species common in the western United States and Canada. A major revision of the genus, including their phylogenetic relationships has yet to be attempted. Found on the underside of submerged rocks and wood.

Arhynchobdellida Blanchard, 1894 Erpobdellidae Blanchard, 1894

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.