My books, nudibranch photos: www.medslugs.de/E/Photographers/Peter_Wirtz.htm#photos
Fish photos: www.fishbase.org/Photos/ListThumbnails.php?personnel=806&SortBy=genus
A very large collection of animal images: www.tolweb.org/onlinecontributors/app?page=ContributorImagesPage&service=external&sp=3520
