The pages which follow list most of the papers presented at the 1998 meetings. Some abstracts were communicated after the initial deadline and have not yet been added to this list. Certain special characters transmitted electronically are not faithfully retained, and those corrections are being made. All corrections should be in place by the end of September.
Constructive critique is welcomed.
Jr. Steroid hormones and uterine gland formation in the Atlantic stingray, Dasyatis sabina . Testosterone and 17- estradiol concentrations have been correlated with ovulation, embryonic nutrition and parturition in various elasmobranch species. In this study, we test the hypothesis that variations in serum concentrations of sex steroid hormones correlate with reproductive changes occurring during gestation in the Atlantic stingray, Dasyatis sabina . To test this hypothesis, blood and uterine samples were collected from rays during the non-reproductive and reproductive seasons. Histological analysis revealed that the uterus became glandular and highly vascular early in the reproductive season, when females were carrying uterine encapsulated eggs.