... cloudy catsharks (Scyliorhinus torazame). Embryonic nutrition Oviparous cartilaginous fish PepT1 Pre-hatching Slc6a19 Spiral intestine Cartilaginous fish (sharks, rays and chimaeras) have evolved many unusual physiological features, including aspects of osmoregulation (Smith, 1936...

... required for embryonic development but embryonic exploitation of calcium from eggshells enriches hatchling calcium content and results in larger hatchlings. Oviparity Eggshell Skeletogenesis Embryonic nutrition Calcium-rich yolk, which supports the development of free-living hatchlings...