File:Echidna historic embryology 01.jpg

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Historic Embryology - Echidna

Short-beaked echidna (Tachyglossus aculeatus) embryos, from Plate X of original reference.

Legend

  • aur - anlage of external ear
  • gh - genital hump
  • nr - remains of dried amnion (attaching the navel)
  • s - lateral view
  • v - frontal view (of head)
  • vs - frontolateral view
  • vsu - frontolateral and ventral view
  • 40 to 45 - embryos from pouch eggs after removal of amnion
  • 46 - hatching embryo


Links: Echidna Development | Historic embryo drawings 1 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | Historic embryo drawings 2 | 47 | 48 | 49 | 48-49 | 50 | 51 | 52 | 53


Smaller outline drawings show the original size of the embryo in original publication.

Reference

Semon, R. Zur Entwickelungsgeschichte der Monotremen. Denkschriften der Medizinisch-Naturwissenschaftlichen Gesellschaft zu Jena (1894) 5: 61–74.

(Embryology of the monotremes. Proceedings of the Medical and Natural Sciences Society in Jena)

File history

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Date/TimeThumbnailDimensionsUserComment
current14:30, 14 October 2011Thumbnail for version as of 14:30, 14 October 20111,893 × 2,513 (712 KB)S8600021 (talk | contribs)==Historic Embryology - Echidna== Short-beaked echidna (Tachyglossus aculeatus) embryos, from Plate X of original reference. * air - anlage of external ear * gh - genital hump * nr - remains of dried amnion (attaching the navel) * s - lateral view * v -

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