COSMINE
cosmine: translation
a form of dentine covered by a layer of enamel and with clusters of dentinal tubules which open to the surface pores and lead into flask-shaped cavities. The cavities are are connected by canals (the "pore-canal system"). Enamel may or may not penetrate and cover all or a part of the inner surface of the pore cavity. The pore-canal system has been suggested to house an electrosensory organ but there is no clear evidence of this (Bemis and Northcutt, 1992)