part of ends during starts during epidermis death ionocyte FORE cell XAO:0004085 mitochondria-rich cell CL:0005006 IC PSC Specialized epithelial cells involved in the maintenance of osmotic homeostasis. They are characterized by abundant mitochondria and ion transporters. In Xenopus there are two distinct types of ionocytes, described as alpha- and beta- subtypes. xenbase3 proton-secreting cell xenopus_anatomy narrow cell intercalated cell clear cell 2011-08-24T02:12:18Z non-neural ectoderm non-ciliated epithelial cell NF stage 10