Magnified image of Caecilian's Mucous Gland Connective Tissue (image) Utah State University Share Print E-Mail Caption Magnified image of connective tissue matrix forming honeycomb structure surrounding glands on the head of Caecilian, Siphonops annulatus. Scientists from Utah State University in the United States and Brazil's Butantan Institute report skin gland concentrations adapted to different evolutionary pressures in the head and posterior regions of the amphibian. Credit Carlos Jared, Butantan Institute Usage Restrictions Credit author Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.