Nautilus: The Biology and Paleobiology of a Living Fossil

adapical animals apertural growth approximately aquaria Aquarium aragonite belauensis blood body chamber branchial buoyancy cameral liquid cells cephalopods Chamberlain Chapter cicatrix cirri cirrus coleoids concentrations crystals depth digital tentacles dorsal drag embryo epithelium epizoans fibers Figure Fiji filter fossil function funnel gills Grégoire hemocyanin Hochachka hyponomic immature Islands macromphalus mantle cavity mature maximum measured membrane metabolic morphology nacre nacreous layer nautiloids Nautilus belauensis Nautilus macromphalus Nautilus pompilius Nautilus shell O₂ observed Octopus organic oxygen Palau Papua New Guinea periostracum Philippines phragmocone populations pressure propulsive pulse range rate of apertural ratio region relative samples Saunders Scale bar scrobiculatus seawater septa septum shell diameter shell wall siphuncle species of Nautilus specimens squid stress structure surface sutures swimming Table tank Tañon Strait temperature thickness thrust tissue trap tube variable variation velocity ventral Waikiki Aquarium Ward weight whorl Willey