Figure 7From: Normal embryonic stages of the Longnose Gar, Lepisosteus osseusLepisosteus osseus. Stages 25-28. A) Stage 25. B) Stage 26. C) Stage 27. D) Stage 28. s = somites pf = pectoral fin bud op = operculum g = gut ff = fin fold mf = median fin anlageBack to article page