Dictionary of Ichthyology
egg-case = the keratinous egg shell of Myxini, Elasmobranchii and Holocephali containing the developing embryo.
|
Dictionary of Ichthyology |
|
|
|
egg-case = the keratinous egg shell of Myxini, Elasmobranchii and Holocephali containing the developing embryo. |
| Egg case of Port Jackson shark, Heterodontus philippi (= H. portusjacksoni) from "A Guide to the Study of Fishes" by D. S. Jordan, 1905. Photograph by Brian W. Coad. |