Bark Anole Embryos - 14 days and older

The Bark Anole, or Anolis distichus, embryos are below. Thanks to Antony Geneva from the Glor Lab for supplying us with an abundance of bark anole eggs. These embryos range from 14-28 days old and were frozen before being shipped to us.

Anolis distichus embryo, 14-28 days old

Anolis distichus embryo, 14-28 days old

Bark anole embryo, 14-28 days old

Anolis distichus embryo, 14-28 days old

Anolis distichus embryo, 14-28 days old

Bark anole embryo, 14-28 days old

Anolis distichus embryo, 14-28 days old

Many male squamates (lizards and snakes) have two reproductive organs (Losos). In male anoles the hemipenes that are stored at the base of the tail. Normally they are stored inside out and only one at a time expands for reproduction with the help of some muscles. Penile reflexes cause the sperm to flow along the hemipenes. In anoles, the male and females both develop hemipenes, but the females lose them before hatching (Lovern and Wade 2003).  In the picture below, the embryo has both hemipenes everted. In Anolis carolinensis, the hemipenes on female embryos regress by Day 19 (Holmes and Wade 2005).

Anolis distichus embryo, 14-28 days old. Hemipenes are both visible.

Bark anole embryo, 14-28 days old

All embryos were treated ethically.

  


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