File:EB1911 Gastropoda - Ancula cristata.jpg

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Summary

Description

English: Ancula cristata, one of the pygobranchiate Opisthobranchs (dorsal view). See legend below.

Date

published 1911

Source

“Gastropoda,” Encyclopædia Britannica (11th ed.), v. 11, 1911, p. 522, fig. 54.

Author

From Gegenbaur, after Alder and Hancock.

Permission
(Reusing this file)

This image comes from the 13^th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

English: Legend:

a,	Anus.
br,	Secondary branchia surrounding the anus.
t,	Cephalic tentacles. External to the branchia are seen ten club-like processes of the dorsal wall, these are the “cerata” which are characteristically developed in another suborder of Opisthobranchs.

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:16, 23 March 2019		263 × 590 (41 KB)	Bob Burkhardt	{{Information \|description ={{en\|1=''Ancula cristata'', one of the pygobranchiate Opisthobranchs (dorsal view). See legend below.}} \|date =published 1911 \|source =“Gastropoda,” ''Encyclopædia Britannica'' (11th ed.), v. 11, 1911, p. 522, fig. 54. \|author =From Gegenbaur, after Alder and Hancock. \|permission ={{PD-Britannica}} }} {{en\|Legend:}} {\| \|-valign="top" \|''a'',\|\|Anus. \|-valign="top" \|''br'',\|\|Secondary branchia surrounding the anus. \|-valign="top" \|''t'',\|...

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