Description: 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 7 PLATE VII. FIGS. 1-4. Ascidia rudis Alder, (p. 100) accepted name Ascidia mentula Müller, 1776 1. Test: natural size.2. Mantle : natural size. 3. Part of branchial sac : magnified. 4. Ocelli : highly magnified. 5. Ascidia venosa Mull. (p. 102) accepted name Ascidia virginea Müller, 1776 Test : natural size. 6-8. Ascidia depressa A. & H. (p. Ill) accepted name Ascidia conchilega Muller, 1776 6. Test: natural size. 7 and 8. Views of mantle : natural size (7, right side ; 8, left side). 9-11. Ascidia aculeata Alder, (p. 114) accepted name Ascidiella aspersa (Müller, 1776) 9. Test: natural size. 10. Mantle : natural size. 11. Part of branchial sac : magnified. Date: 1850s date QS:P,+1850-00-00T00:00:00Z/8. Source:
https://www.biodiversitylibrary.org/. Author: Alder and Hancock.