Such vessels were not seen in the normal lungs or in the case of subacute liver necrosis. This filling of pleural vessels was at times seen when pleural spider nevi were not apparent. Of 13 ...

And, one more fun fact: Male sea spiders carry the young, not females! Most sea creatures have gills (like fish and lobsters) or lungs (like whales). Yet, sea spiders have neither gills nor lungs.

Sea spiders don’t have lungs or gills but still need oxygen. They get the oxygen they require by letting it diffuse over their leg’s surface area and enter their body through their tissues.