That which is like masúra (ervum hirsutam), that which consists of three joints (triputaka), that which is like a tortoise (kúrmaka), that which is semi-circular, that which consists of several coatings, that which is double (yámaka), that which is scratched, that which is of rough surface, that which is possessed of spots (siktakam), that which is like the water-pot used by an ascetic, that which is of dark-brown or blue colour, and that which is badly perforated are inauspicious.