ends during starts during death granular gland xenopus_anatomy UBERON:3010602 eriksegerdell A surface structure principally responsible for the production of noxious or toxic secretion with an effect on numerous species of vertebrates. The glands are almost uniformly distributed, on both ventral and dorsal skin. poison gland 2015-05-16T15:11:53Z XAO:0005023 skin gland NF stage 23