File:Catshark egg case stage 5.jpg
Catshark_egg_case_stage_5.jpg (710 × 507 pixels, file size: 97 KB, MIME type: image/jpeg)
Catshark S. stellaris egg case at stage 5
A: Position of placoid denticles and caudal denticles (dorsal view).
B: Body shape began to resemble an adult shark and the external yolk sac shrank visible in size (lateral view).
C: The magnified head and reduced gill filaments (ventral view). The key feature for stage 5 was nearly complete loss of external gill filaments.
See S5 File for original photographs of Fig 5 illustrations.
Reference
Musa SM, Czachur MV & Shiels HA. (2018). Oviparous elasmobranch development inside the egg case in 7 key stages. PLoS ONE , 13, e0206984. PMID: 30399186 DOI.
Copyright
© 2018 Musa et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Fig 5 Pone.0206984.g005.jpg https://doi.org/10.1371/journal.pone.0206984.g005
Cite this page: Hill, M.A. (2024, April 19) Embryology Catshark egg case stage 5.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Catshark_egg_case_stage_5.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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