Sea slugs: Pleurobranchus reticulatus 1, Berthellina citrina 3, Pleurobranchus peronii 2,4. Pleurobranche reticule, de Peron, ponctue, cornu. Handcoloured steel engraving by du Casse after an illustration by Adolph Fries from Felix-Edouard Guerin-Meneville's Dictionnaire Pittoresque d'Histoire Naturelle (Picturesque Dictionary of Natural History), Paris, 1834-39.

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Size: 4580px × 7067px
Photo credit: © Florilegius / Alamy / Afripics
License: Licensed
Model Released: No

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