A living T. g. elatensis showing Type B pollution-induced deformity in Eilat, Red Sea: It showed mainly as an extreme apical collapse . It was apprently caused by chemicals ejected from a hotels laundry into an artificial lagoon. 2/3 of the population showed this deformity. This deformity was described by Dafni (1983b). It is still shown occasionally in small shore streches, apparently affected by polluted waters.