THE FOSSIL ANNELID GENUS HAMULUS MORTON, AN OPERCULATE SERPULA.

Washington, D.C.: GPO Magazine. Good. Soft cover. pp41-46, plus two plates. Removed from PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM VOLUME 59. PUBLISHED UNDER THE DIRECTION OF THE SMITHSONIAN INSTITUTION. VG. In plastic report covers. From the introduction: "Among some of the recent discoveries in the large and well-preserved Ripley Fauna of the Upper Cretaceous at Coon Creek, McNairy County, Tennessee, are a number of opercula from the Serpula Hamulus Morton. Species of this genus are widely distributed in the Cretaceous, but if the opercula have ever been found previously they are still unknown in the literature; so it is the purpose of this brief paper to describe one new species and the calcareous opercula from two species of this interestng group of fossil annelids." Smithsonian Reports Paleontology L&S 12/22/21 .