16. Histological Analyses of Integumentary Features within Zigzag Salamanders, Plethodon dorsalis (Amphibia: Plethodontidae)

Breanna Davis University of Indianapolis, Katie Rust University of Indianapolis, Mikia Davis University of Indianapolis
Faculty Sponsor(s): Kevin Gribbins University of Indianapolis
Studies conducted on the integument of Plethodontidae have shown mucous, granular, and modified composite multicellular glands in the skin. In amphibians, data on the morphology of skin glands is limited to a handful of studies between aquatic and terrestrial salamanders or their larvae. This study focuses on comparing the integumentary glands on the ventral and dorsal surfaces of the Zigzag salamander, Plethodon dorsalis, to those found on the Northern Two-Lined Salamander, Eurycea bislineata, and the Spotted-tail Salamander, Eurycea lucifuga. The purpose of this comparative study is to investigate the histological diversity of integumentary glands found on the ventral and dorsal surfaces of salamanders, as all three species in this study are found in the same family, Plethodontidae. We hypothesize that the plethodontid salamanders will have similar morphology to that of other lungless salamanders, though distribution of these gland types may be different between species. The preliminary results of this study will then be used to do a family comparison to analyze potential similarities and differences in integumentary features among terrestrial adult. In later studies, we would like to look at zigzag embryos as they develop within the egg to see if there are any developmental changes to skin glands that we can observe.
Biology
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Irwin Library 3rd Floor