Calyptraea Public domain scan of zoological print or book illustration, zoology, free to use, no copyright restrictions image - Picryl description
Calyptraea sinensis - anatomie Public domain scan of zoological print or book illustration, zoology, free to use, no copyright restrictions image - Picryl description
Calyptraea tectum sinensis Public domain scan of zoological print or book illustration, zoology, free to use, no copyright restrictions image - Picryl description
— 20 -- Familles : Rissoïdés, Capiilidés et Calyptréidés. Ç\ G6 /^•ç-^^Si G6. — Rissoa membranacea. 67. — Rissoa variabilis. 68. — Rissoa cimex. 69. — Gapulus uiigaricus. 70. — Calyptraea sinensis.