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The Aftershaft in Jacamars and Puff-Birds |
 | | Their observations indicate that barbs arising in the center of the "ventral triangle," and having a vertical arrangement, are properly considered homologous with the aftershaft. |
 | | The species examined were as follows: Galbulidae: Galbalcyrhynchus leucotis, Brachy- galba lugubris, Jacarrralcyon tridactyla, Galbula alblrostris, Galbula galbula, Galbula tombacea, Galbula ru/icauda, Galbula leucogastra, Galbula dea and Jacamerops aurea. |
 | | In all of the jacamars examined the aftershaft is present and originates as a single shaft from the proximal margin of the superior umbilicus. |
| elibrary.unm.edu /sora/Wilson/v068n03/p0252-p0253.html (1075 words) |
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