1. Allen, J. A., 1971, Evolution and functional morphology of the deep water protobranch bivalves of the Atlantic, Proceedings of the Joint Oceanography Assembly (Tokyo, 1970 ), pp. 251–253.
2. Allen, J. A., 1978, Evolution of the deep sea protobranch bivalves, Philos. Trans. R. Soc. London Se r. B
284: 387–401.
3. Allen, J. A., and Sanders, H. L., 1973, Studies on deep-sea Protobranchia (Bivalvia): The families Siliculidae and Lametilidae, Mus. Comp. Zool. Bull. 145: 263–310.
4. Amio, M., 1963, A comparative embryology of marine gastropods, with ecological considerations, ]. Shimonoseki Coll. Fish. 12: 229–358.
5. Anderson, D. T., 1960, The life histories of marine prosobranch gastropods, f. Malacol. Soc. Au st. 1: 16–29.