This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB Astacus leniusculus Dana Male.jpeg check categories September Astacus leniusculus Dana Male Subject Astacus Crayfish Tag Shellfish Cite book of the Astacidae Faxon Walter Cambridge MA Museum of Comparative Zoology Memoirs of the Museum of Comparative Zoology at Harvard College Vol No Plate VI fig Creator Walter Faxon