Valvata sincera shell 2

Författare/Upphovsman:

Miss Helen Winchester (born ? - died ?, U.S.A.) (She was associated with Academy of Natural Sciences of Philadelphia until 1946 - (according to Vera Norwood. 1993. Made from This Earth: American Women and Nature. The University of North Carolina Press, 392 pp., ISBN 0807843962, page 70. ))

Kreditera:

Walker, B. July 1906. Notes on Valvata. The Nautilus, Volume 20, Number 3, 25-32, Plate 1. figure 4. (Author Miss Helen Winchester is mentioned at page 32.)

Kort länk:

https://sewiki.info/b/c72ab

Källa:

Wikimedia Commons

Upplösning:

388 x 275 Pixel (52601 Bytes)

Beskrivning:

drawing of lateral view of the shell of Valvata sincera

Licens:

Public domain