Studies on Echinostomatidae (Trematoda) in Malaya. XIV. Body Gland Cells in Cercariae of Echinostoma audyi Lie and Umathevy, and E. lindoense Sandground and Bonne

Publisher Website
Google Scholar
Abstract
Cercariae of E. audyi and E. lindoense have, in addition to cystogenous and penetration gland cells, other gland cells that open on the body surfaces, These gland cells may be demonstrated by their intense staining with Nile blue sulfate, neutral red, and Bismarck brown. They also stain with brilliant cresyl blue, crystal violet, thionin, and toluidine blue. These para-esophageal gland cells, whose function is unknown, are absent in cercariae of E. malayanum. E. hvstricosum. Echinoparyphium dunni. and Hypoderaeum dingeri. but present in cercariae of an Echinostoma with 37 collar spines, obtained from a Brazilian Biomphalaria glabrata. Cercariae of E. audyi and E. lindoense. though closely related, are easily differentiated by the distribution of these para-esophageal gland cells and their outlets.