Literature
  • Carlisle 1953
  • a. Presenza di spicole in Diplosoma listerianum (Milne -Edwards). Contributo alla sistematica degli Ascidiacea, Didemnidae. Pubbl. Staz. zool. Napoli 24, 61-67.
  • Carlisle 1954b
  • Notes on the Didemnidae (Ascidiacea). III. A comparison of Didemnum maculosum, D. candidum, D. helgolandicum, and Trididemnum alleni. J. mar. biol. Ass. U.K. 33, 313-334.
  • Carlisle 1954a
  • Styela mammiculata n. sp., a new species of ascidian from the Plymouth area. J. mar. biol. Ass. U.K. 33, 329-334.