A median bony point projecting from the anterior and ventral margin of the sternum of a bird. From http://www.merriam-webster.com/dictionary/spina%20externa. [ PHENOSCAPE:Alex ]
This is just here as a test because I lose it
A median bony point projecting from the anterior and ventral margin of the sternum of a bird. From http://www.merriam-webster.com/dictionary/spina%20externa. [ PHENOSCAPE:Alex ]