Britannica
Sources used in this answer
How do chimaeras lay their eggs?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
chondrichthyan
Southern stingrays (Dasyatis americana or Hypanus americanus) are found in the western Atlantic Ocean.
Chimaeras are oviparous, meaning they are egg-laying species. Females produce large, yolk-rich eggs that are fertilized internally before being deposited.12
These eggs are protected by a horny shell or capsule, which is typically elliptic, spindle-shaped, or tadpole-shaped. The egg cases are equipped with features that allow them to be anchored in the environment, such as tendrils for coiling around solid objects or spikelike projections for securing them in mud or sand. Additionally, the egg cases contain pores and slits that permit the entrance of water, which is necessary for the embryo during its incubation period.21