Mizuki Sasaki, Osamu Miura, and Minoru Nakao honor Ryan by naming a newly described species of trematode after him: Philophthalmis hechingeri. Ryan had first recognized the redia and cercaria stages of this species from their first intermediate host snail in Japan in 2003. In 2007, he provided a description of those stages and gave it a provisional name (the latter … Read More
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