1st record: Madras/India/Bay of Bengal (Robertson, cited by Cohen and Carlton 1995). Jebakumar et al. (2017) argue for an introduced status for Amatia verticillata in India, noting its scarcity on natural substrates, and for its scattered occurrence on artifical structures in harbors.
Madras/India/Bay of Bengal (Robertson 1921, cited by Cohen and Carlton 1995); Visakhapatnam/India/Bay of Bengal (Rao and Ganapati 1978); Tuticorin, Tamil Nadu/India/Arabian Sea (Jebakumar et al. 2017); Rameshwaran, Tamil Nadu/India/Arabian Sea (Jebakumar et al. 2017)