1970, Corals of the Traverse Group of Michigan Part 13, Hexagonaria
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Hexagonaria anna Whitfield, 1882 (UMMP IP 18810 Hexagonaria anna)Hexagonaria anna Whitfield, 1882 (UMMP IP 18821 Hexagonaria anna)Hexagonaria anna Whitfield, 1882 (UMMP IP 18874 Hexagonaria anna)Hexagonaria anna Whitfield, 1882 (UMMP IP 23900 Hexagonaria anna)Hexagonaria anna Whitfield, 1882 (UMMP IP 23902 Hexagonaria anna)Hexagonaria anna Whitfield, 1882 (UMMP IP 37817 Hexagonaria anna)Hexagonaria anna Whitfield, 1882 (UMMP IP 56950 Hexagonaria anna)Hexagonaria anna Whitfield, 1882 (UMMP IP 8275 Hexagonaria anna)
