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Cockerell T D A Names applied to bees of the genus
Kirk Edwin The structure and relationships of certain Page
Obeeholser Harry C A revision of the forms of
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anal angle animal antennae apical appear attachment axial basal base become beds body bottom broad brown caudal centrale characters cirri closely Cockerell collection color column complete considerable contains cords crinoids depth described detached distal distinct dorsal edge entirely equal evidence existence fact fathoms female figure fins Fish formation forms fourth genus Geol given head indicate individuals infrabasals inner Island joint lateral legs length less longer lower male margin marked middle Museum narrow nature nearly noted organs outer plates portion posterior present probably proximal punctures rays referred represent ridges rounded scales seems segments separated short showing shown side similar slender slightly snout space species specimens spines spiral station stem stripe strongly structure surface sutures teeth third upper whorls wings