narrow-mouthed

ovariolobularis in its molluscan hosts, Stenothyra toucheana and Oncomelania hupensis, and the lymphatic cellular reaction of snail host to this parasite.

本文报告外睾吸虫早期幼虫在钉螺及窄口螺的奇特发育形式及贝类宿主的反应情况。