File:BritishTunicataPlate13.jpg

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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 13

XIII

Ascidia sordida A and H (p.119 ) accepted name Ascidiella aspersa (Müller, 1776)

REPRODUCTION 1. Test and mantle laid open, showing reproductive organs- ovary in centre, male caeca on either side, and oviduct full of eggs, mostly passing out in single series: almost twice natural size.

2. Anal aperture, oviduct and vas deferens : magnified. Cf. Plate XII figs. 3 and 4. (File:BritishTunicataPlate12.jpg)

3 Aperture of oviduct (a) and of vas deferens (b):more highly magnified.

4-6. Clusters of eggs: highly magnified.7 A single ovum showing glassy layer (a) and yolk (b).

8 Male caeca: magnified.
Date 1850s
date QS:P,+1850-00-00T00:00:00Z/8
Source https://www.biodiversitylibrary.org/
Author Alder and Hancock

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current19:40, 31 August 2010Thumbnail for version as of 19:40, 31 August 20101,991 × 3,176 (514 KB)Notafly (talk | contribs){{Information |Description={{en|1=As file}} |Source=http://www.biodiversitylibrary.org/ |Author=Alder and Hancock |Date=1850s |Permission= |other_versions= }} Category:Joshua Alder and Albany Hancock British Tunicata Volume 1

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