Works

• Alder J. (1838). "Supplement to a catalogue of the land and fresh-water testaceous Mollusca, found in the vicinity of Newcastle". Transactions of the Natural History Society of Northumberland and Durham 1(3): 337-342. Newcastle.
• Alder J. (1841). "Observations on the genus Polycera of Cuvier, with descriptions of two new British species". Annals and Magazine of Natural History 6: 337–342. 
• Alder J. & Hancock A. (1845-1855). A monograph of the British nudibranchiate Mollusca: with figures of all the species. The Ray Society, London. Published in 8 parts:
  • Alder J. & Hancock A. (1845) part 1. online
  • Alder J. & Hancock A. (1846) part 2.
  • Alder J. & Hancock A. (1847) part 3.
  • Alder J. & Hancock A. (1848) part 4.
  • Alder J. & Hancock A. (1851) part 5.
  • Alder J. & Hancock A. (1854) part 6.
  • Alder J. & Hancock A. (1855) part 7.
  • Eliot E. (1910) part 8 (suppl.)
• Alder J. & Hancock A. (October 1851). "Descriptions of two new species of nudibranchiate Mollusca, one of them forming the type of a new genus". Annals and Magazine of Natural History (series 2)8(46): 290-302, pls. 9-10.
• Alder, Joshua, Embleton, Dennis, Hancock, Albany, Hopkinson, John,Norman, Alfred Merle, 1905-12 The British Tunicata; an unfinished monograph, by the late Joshua Alder and the late Albany Hancock. Edited by John Hopkinson, with a history of the work by the Rev. A. M. Norman. London. Printed for the Ray Society.