Abstracts of papers presented at the 93rd meeting of the American Association of Anatomists a t Omaha under the sponsorship of the University of Nebraska School of Medicine, April 26, 27, 28, 29, 30, and May 1, 1980.

The abstracts are listed in alphabetical sequence by senior author as follows: scientific papers from platform, poster presentation, or motion picture demonstration; special sessions on history and stereoprojection; and papers by title.

Names of authors who are guests of the Association are marked with an asterisk. In addition, the letter “G” following the number of the paper and the term “sponsored by” is used to denote a graduate student presentation by an individual in hislher terminal year of graduate study, sponsored by hislher major professor.