The distribution and fine structure of the integumentary papillae of the cercaria of Himasthla secunda (Nicoll).
D000818:Animals; D007814:Larva / Q000166:cytology; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D009411:Nerve Endings; D012835:Silver Nitrate; D012867:Skin / Q000166:cytology; D012908:Snails; D014200:Trematoda / Q000166:cytology*
D012835:Silver Nitrate