Oviposition and development in the glass frog Hyalinobatrachium orientale (Anura: Centrolenidae)

  • Mohsen Nokhbatolfoghahai University of Shiraz
  • Christopher J. Pollock University of Glasgow
  • J. Roger Downie University of Glasgow
Keywords: amphibians, embryonic development, glass frogs, oviposition, Tobago, West Indies.

Abstract

Oviposition and development in the glass frog Hyalinobatrachium orientale (Anura: Centrolenidae). Oviposition and external embryonic developmental features are described in the Tobago glass frog, Hyalinobatrachium orientale. Egg clutches are nearly always laid on the undersides of leaves (one exception); usually leaves of Heliconia sp. are used, but Philodendron and palms may be used in the absence of Heliconia. Clutches contain 28.0 ± 5.3 eggs (mean ± SD) and eggs are 1.86 ± 0.11 mm in diameter. The behavior of one amplectant pair was followed for more than five hours; the pair rotated several times around a small area of the leaf depositing eggs in a tight spiral formation. External embryonic features were observed by scanning electron microscopy. Surface ciliation is extensive up to the time of hatching when it is lost; external gills are short and a cement gland is absent. Hatching gland cells were detectable on the anterodorsal surface of the head from Day 4 after deposition and persisted until at least Day 10, and hatching occurred between Days 9 and 16. During this period, progressive development in tail length, surface pigmentation, intestinal coiling, and oral disc features was observed. Post-hatching larvae reared for six weeks grew 37% in length and tripled in weight, but remained at Gosner Stage 25.

Downloads

Download data is not yet available.

Author Biographies

Mohsen Nokhbatolfoghahai, University of Shiraz
Biology Department, Faculty of Science, University of Shiraz, Shiraz 71345, Iran.
Christopher J. Pollock, University of Glasgow
School of Life Sciences, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
J. Roger Downie, University of Glasgow
School of Life Sciences, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
Published
2015-06-30
How to Cite
Nokhbatolfoghahai, M., Pollock, C., & Downie, J. R. (2015). Oviposition and development in the glass frog Hyalinobatrachium orientale (Anura: Centrolenidae). Phyllomedusa: Journal of Herpetology, 14(1), 3-17. https://doi.org/10.11606/issn.2316-9079.v14i1p3-17
Section
Articles