P.  Kott, ?The sessile Tunicata?, Report of the John Murray Expedition 1933-1934, vol. 10, pp. 129-149, 1957.

P.  Kott, ?Tunicata. Ascidians?, British, Australian and New Zealand Antarctic Research Expedition, 1929-1931, Reports Series B (Zoology and Botany), vol. 1, no. 4, pp. 121-182, 1954.

P.  Kott, ?Ascidians of Australia. I. Stolidobranchiata and Phlebobranchiata?, Australian Journal of Marine and Freshwater Research, vol. 3, pp. 206-333, 1952.

P.  Kott, ?Observations on compound ascidian of the Plymouth area with description of two species.?, Journal of the Marine Biological Association of the United Kingdom, vol. 31, pp. 65-83, 1952.

P.  Kott, ?Antarctic Ascidiacea?, Antarctic Research Series, vol. 13, pp. 1-239, 1969.

P.  Kott, ?Adagnesia opaca gen. nov., sp. nov. A Remarkable ascidian of the Family Agnesiidae from Moreton Bay, Queensland?, University of Queensland Papers of the Department of Zoology, vol. 2, pp. 75-79, 1963.

P.  Kott, ?The ascidians of Australia IV. Aplousobranchiata Lahille: Polyclinidae Verrill (continued)?, Australian Journal of Marine and Freshwater Research, vol. 14, pp. 70-118, 1963.

P.  Kott, ?The ascidians of the Reef Flats of Fiji?, Proceedings of the Linnean Society of New South Wales, vol. 105, pp. 148-212, 1963.

P.  Kott, ?The ascidians of Australia III. Aplousobranchiata Lahille: Didemnidae Giard?, Australian Journal of Marine and Freshwater Research, vol. 13, pp. 265-334, 1962.

P.  Kott, ?Two new genera of didemnid ascidians from tropical Australian waters?, Beagle, vol. 1, pp. 13-19, 1983.

P.  Kott, ?Didemnid-algal symbioses: host species in the western Pacific with notes on the symbiosis?, Micronesica, vol. 18, pp. 85-127, 1982.

P.  Kott, ?The ascidians of the Reef Flats of Fiji?, Proceedings of the Linnean Society of New South Wales, vol. 105, pp. 147-212, 1981.

P.  Kott, ?Algal bearing didemnid ascidians of the Indo-west-Pacific?, Memoires of the Queensland Museum, vol. 20, pp. 1-38, 1980.

P.  Kott, ?Algal supporting didemnid ascidians of the Great Barrier Reef?, in Proceedings of the Second International Coral Reef Symposium, vol. 1, pp. 615-621, 1977.

P.  Kott, ?Plurellidae, a new phlebobranchiate family of the Ascidiacea.?, Proceedings of the Linnean Society of New South Wales, vol. 97, pp. 258-261, 1973.

P.  Kott, ?The ascidians of South Australia II. Eastern sector of the Great Australian Bight and Investigator Strait?, Transactions of the Royal Society of South Australia, vol. 96, no. 4, pp. 165-196, 1972.

P.  Kott, ?The Australian Ascidiacea Part 1, Phlebobranchia and Stolidobranchia?, Memoirs of the Queensland Museum, vol. 23, pp. 1-400, 1985.

P.  Kott, ?The Australian Ascidiacea Part 2, Aplousobranchia (1)?, Memoires of the Queensland Museum, vol. 29, pp. 1-298, 1990.

P.  Kott, ?New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 3)?, Journal of Natural History, vol. 39, pp. 2409-2479, 2005.

P.  Kott, ?New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 2)?, Journal of Natural History, vol. 38, pp. 2455-2526, 2004.

P.  Kott, ?New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part I)?, Journal of Natural History, vol. 38, pp. 731-774, 2004.

P.  Kott, ?New syntheses and new species in the Australian Ascidiacea?, Journal of Natural History, vol. 37, pp. 1611-1653, 2003.

P.  Kott, ?Ascidiacea (Tunicata) from Darwin, Northern Territory, Australia?, The Beagle, Records of the Museums and Art Galleries of the Northern Territory, vol. 18, pp. 19-55, 2002.

P.  Kott, ?A complex Didemnid ascidian from Whangamata, New Zealand?, Journal of the Marine Biological Association of the United Kingdom, vol. 82, pp. 625-628, 2002.

P.  Kott, ?The Australian Ascidiacea Part 4, Aplousobranchia (3), Didemnidae?, Memoirs of the Queensland Museum, vol. 47, pp. 1-407, 2001.

P.  Kott, ?Tunicata?, in Zoological Catalogue of Australia, Wells, A & Houston, W.W.K. (eds)., Melbourne: CSIRO, 1998, pp. 51-215.

P.  Kott, ?Ciallusiidae (Ascidiacea, Tunicata), a monotypic family from deeper waters of the tropical Indo-West Pacific?, Zootaxa, vol. 1742, pp. 47-52, 2008.