Fork-tailed humming-bird illustration from The Naturalist's Miscellany (1789-1813) by George Shaw (1751-1813) Free Image from public domain license 
Shell (1921) by Julie de Graag (1877-1924). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Spindle strombus illustration from The Naturalist's Miscellany (1789-1813) by George Shaw (1751-1813) Free Image from public domain license 
Galatea by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Different types of mollusks illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892… Free Image from public domain license 
Triton blows on the conch shell by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Tuberculated haliotis or Ear-shell illustration from The Naturalist's Miscellany (1789-1813) by George Shaw (1751-1813) Free Image from public domain license 
Shell club-shaped illustration from The Naturalist's Miscellany (1789-1813) by George Shaw (1751-1813) Free Image from public domain license 
Shells by Julie de Graag (1877-1924). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Conchology from A history of the earth and animated nature (1820) by Oliver Goldsmith (1730-1774). Digitally enhanced from… Free Image from public domain license 
Lantern illustration from Bijutsu Sekai (1893-1896) by Watanabe Seitei, a prominent Kacho-ga artist. Digitally enhanced from… Free Image from public domain license 
Agate bulla illustration from The Naturalist's Miscellany (1789-1813) by George Shaw (1751-1813) Free Image from public domain license