(full paper is archived in the Miller Library)
Title: Chemoreception by Tegula funebralis (Mollusca: Gastropoda)
Student Author(s): Burke, William Romney
Location: Final Papers Biology 175H
Date: June 1963
Keywords: black turban snail
Abstract: Tegula funebralis has both gustatory and olfactory sense sites. The side of the foot, the head tentacles, and the epipodial structures serve as contact chemoreceptive sites. Extirpation or scraping of these structures does not alter the overall sensitivity to Pisaster ochraceus. Scraping the bottom of the foot, cutting the border between the side and bottom of the foot, removal of the epipodial fringe (on the left side of the foot), removal of up to half of the ctenidium do not noticeably alter chemoreception. The osphradium functions as an olfactory organ and is capable of detecting the presence of an extract containing 2.6 X 10^-5 parts by weight of tube feet from Pisaster ochraceus. The osphradium, when stimulated, seems to cause the animals to be more sensitive to stimulations of the head tentacles and epipodial structures. Removal of part of the osphradium does not result in appreciable change of chemoreceptive abilities of T. funebralis.
Notes: Published 1964, Veliger 6(suppl.): 17-20