English: 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. Volume 1 Plate 11

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FIGS. 1 and 2 - Ascidia amoena sp. nov. (p.116) 1. Test, with branchial aperture directed upwards: one and a half times natural size.2. Test of another individual , with branchial aperture directed downwards:natural size. accepted name Ascidia conchilega Müller, 1776

3-5. Ascidia plebeia Alder (p.117) 3. Test:natural size. 4 Part of branchial sac: magnified 5.Ocelli:Highly magnified. accepted name Ascidia conchilega Müller, 1776

6 and 7 - Ascidia sordida A and H (p.110) 6 Tests of two individuals:natural size 7. Mantle of another individual:natural size. accepted name Ascidiella aspersa (Müller, 1776)

8 and 9. –Probably a variety of Corellia paralellogramma. Views of test. :one half natural size (8, right side; 9, left side.accepted as Corella parallelogramma (Müller, 1776)

10 - Ascidia obliqua Alder (p.124) Test:natural size.accepted as Ascidia obliqua Alder, 1863