Linda Pitkin / 2020VISION / Pink sea fan / Warty coral (Eunicella verrucosa) with attached eggs of a Common squid (Loligo vulgaris), eggcase of a Lesser-spotted dogfish (Scyliorhinus canicula), and Spiny starfish (Marthasterias...

Juergen Freund / Eggcase of Swell shark showing embryo. (C. ventriosum) Pacific Cephaloscyllium

Alex Hyde / Nursehound dogfish (Scyliorhinus stellaris) empty egg cases / mermaid's purse and a single much samller eggcase from a Smallspotted catshark (Scyliorhinus canicula). Anglesey, Wales, UK. December.

Linda Pitkin / 2020VISION / Pink sea fan / Warty coral (Eunicella verrucosa) with attached eggs of a Common squid (Loligo vulgaris), eggcase of a Lesser-spotted dogfish (Scyliorhinus canicula), and Spiny starfish (Marthasterias...

MYN / Piotr Naskrecki / Wood cockroach (Parcoblatta pennsylvanica) female with eggcase, St Michaels, Maryland, USA, June. meetyourneighbours.net project

MYN / Piotr Naskrecki / Wood cockroach (Parcoblatta pennsylvanica) dorsal view of female with eggcase, St Michaels, Maryland, USA, June. meetyourneighbours.net project

Niall Benvie / Dogfish eggcase {Scyliorhinus canicula} washed ashore, Islay, Scotland, UK

Niall Benvie / Dogfish eggcase {Scyliorhinus canicula} Islay, Scotland, UK

DAVID TIPLING / Spider carrying eggcase on abdomen, Amazonia, Peru

Niall Benvie / Dogfish eggcase {Scyliorhinus canicula} Islay, Scotland, UK

Juergen Freund / Eggcase of swell shark (Cephaloscyllum ventriosum) showing embryo, Pacific Ocean

Niall Benvie / Dogfish eggcase {Scyliorhinus canicula} washed up on shore, Islay, Scotland, UK. Mermaid's purse

Geoff Simpson / Eggcase (mermaid's purse) of Larger spotter dogfish {Scyliorhinus stellaris} Wales

Franco Banfi / Spotted ray (Raja montagui) eggcase on Yellow gorgonian (Eunicella cavolini) Punta Campanella Marine Protected Area, Costa Amalfitana, Italy, Tyrrhenian Sea, Mediterranean.