Literature
  • Shipley 1903
  • Echiuroidea. The Fauna and Geography of the Maldive and Laccadive Archipelagoes (Gardiner, J.S. ed.). Cambridge Universuty Press.
  • Shipley 1901
  • Gephyrea and Phoronis. In: The Cambridge Natural History (Harmer, S.F. & A.E. Shipley, eds.). MacMillan and Co., Ltd. London.