1. Darwin, C., “A Monograph on the Sub-class Cirrepedia. The Balanidae; the Verrucidae”, 684 (London, 1854).
2. Costlow, J. D., and Bookhout, C. G., Biol. Bull., 105, 420 (1953).
3. Gruvel, A., “Monographie des Cirrhipèdes ou Thécostracés”, 472 (Paris, 1905).
4. Batham, E. J., Proc. Roy. Soc. New Zeal., 74, 359 (1945).