(full paper is archived in the Miller Library)
Title: Excretory products of Tegula funebralis and Tegula brunnea
Student Author(s): Leonard, Yolanda I.
Location: Final Papers Biology 175H
Date: June 1963
Keywords: black turban snail
Abstract: 1) Test were performed on the snails, Tegula funebralis and T. brunnea, to determine the nature and quantity of their excretory products and the organs of excretion. 2) Standard colorimetric assays were used on homogenates prepared from the ctenidium, digestive gland, right and left kidneys. Total non-protein nitrogen, ammonia, urea, and uric acid were determined. 3) Uric acid was observed to be the major excretory product of these snails. It accounted for 11.8% to 76.6% of the total non-protein nitrogen in the right kidneys, the only organ where this waste product was detectable. Only slight traces of ammonia were found in the digestive gland, and no urea was present in the tissues tested.
Notes: Published 1964, Veliger 6(suppl.): 28-30