Kneer, D., F. Monniot, T. Stach, and M. J. A. Christianen. “Ascidia subterranea Sp. Nov. (Phlebobranchia: Ascidiidae), a New Tunicate Belonging to the A. sydneiensis Stimpson, 1855 Group, Found As Burrow Associate of Axiopsis serratifrons A. Milne-Edwards, 1873 (Decapoda: Axiidae) on Derawan Island, Indonesia”. Zootaxa, vol. 3616, no. 5, Feb. 2013, pp. 485–494, doi:10.11646/zootaxa.3616.5.5.