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Morphology of the Epiphysis and Paraphysis Primordia in Correlophus ciliatus (Reptilia, Gekkota, Diplodactylidae)

Diana P. Vingert, Elisaveta L. Gonobobleva

Abstract


For the first time, the anatomy and histology of the epiphysis and paraphysis primordia of the gecko from the family Diplodactylidae at stage 31 are described. The epiphysis primordium of Correlophus ciliatus embryo forms median evagination of the parietal part of the roof of diencephalon. It has a tube-like structure that is oriented dorso-rostrally. The primordium has a lumen connected to the diencephalon only by a narrow canal. The transverse histological section shows that the epiphysis primordium consists of a pseudostratifaied columnar ciliated epithelium. Rare mitoses are visible in its apical part (luminal compartment). The paraphysis primordium forms median evagination of the most rostral part of the diencephalon roof. It has a tube-like structure that is oriented dorso-caudally. The primordium has a lumen connected to the brain vesicle cavity. The single-layered epithelium of the paraphysis primordium is composed of cuboidal cells. The head of the embryo is covered with single layer epithelium and periderm, the skull is absent, and the brain vesicles are surrounded by mesenchyme. Blood capillaries are attached to some local sites of the epiphysis and paraphysis primordia.

Keywords


reptilia; gecko; embryo; epiphysis; paraphysis; development

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References


Dufaure J. P. and Hubert J. (1961), «Table de développement du lézard vivipare: Lacerta (Zootoca) vivipara Jacquin», Arch. Anat. Microsc. Morphol. Exp., 50, 309 – 328.

Emerling C.A., Springer M.S., Gatesy J., Jones Z., Hamilton D., Xia-Zhu D., Collin M., and Delsuc F. (2021), «Genomic evidence for the parallel regression of melatonin synthesis and signaling pathways in placental mammals», Op. Res. Eur., 1, 75.

Griffing A. H., Sanger T. J., Daza J. D., Nielsen S. V., Pinto B. J., Stanley E. L., Gamble T. (2019), «Embryonic development of a parthenogenetic vertebrate, the mourning gecko (Lepidodactylus lugubris)», Devel. Dyn., 248, 1070 – 1090.

Gundy G. C., Ralph C. L., Wurst G. Z. (1975), «Parietal eyes in lizards: zoogeographical correlates», Science, 190, 671 – 673.

Labra A., Voje K. L., Seligmann H., Hansen T. F. (2010), «Evolution of the third eye: a phylogenetic comparative study of parietal-eye size as an ecophysiological adaptation in Liolaemus lizards», Biol. J. Linn. Soc., 101, 870 – 883.

Melchers F. (1899), «Uber rudimentiire Hirnanhangsgebilde beim Gecko (Epi-, Para- und Hypophyse)», Z. Wiss. Zool., 67, 139 – 166.

Moyer R. W. (1998), Comparative Morphological and Biochemical Study of the Pineal Complex in Geckos. Thesis Presented for the Degree of Doctor of Philosophy, Department of Anatomical Sciences, University of Adelaide, Adelaide, South Australia.

Nowikoff M. (1910), «Udtersuchungen iiber den Bau, die Entwicklung und die Bedeutung des Parietalauges von Sauriern», Z. Wiss. Zool., 96, 118 – 207.

Quay W. B. (1979), «The parietal eye-pineal complex», Biol. Reptilia, 9, 245 – 406.

Rivas-Manzano P., Torres-Ramírez N., Parra-Gámes L., Ortiz-Hernádez R. (2022), «Histological reinterpretation of paraphysis cerebri in Ambystoma mexicanum», Acta Histochem., 124, 151915.

Sapède D. and Cau E. (2013), «The pineal gland from development to function», Curr. Top. Dev. Biol., 106, 171 – 215.

Stemmler J. (1900), Die Entwicklung der Anhänge am Zwischenhirndach beim Gecko (Gehyra oceanica und Hemidactylus mabouia), Ein Beitrag zur Kenntnis der Epiphysis, des Parietalorgans und der Paraphyse. Leipziger Dissertation, Limburg.

Studnicka F. K. (1905), «Die Parietal organe», in: A. Oppel (ed.), Lehrbuch der vergleich-enden mikroskopischen anatomie der wirbeltiere, Germany, Jena, pp. 167 – 209.

Tosini G. (1997), «The pineal complex of reptiles: Physiological and behavioral roles», Ethol. Ecol. Evol., 9, 313 – 333.

Uetz P., Freed P., Aguila R., Reyes F., Kudera J., Hošek J. (2025), The Reptile Database, http://www.reptile-database.org (accessed March 6, 2025).




DOI: https://doi.org/10.30906/1026-2296-2025-32-3-184-188

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