ACCORDING to the Times, the National Museum at Ottawa, Canada, has lately received two nearly complete Mosasaurian skeletons from an Upper Cretaceous clay in southern Manitoba. They measure respectively 33 ft. and 15 ft. in length, but both lack the end of the tail. Only fragments of these fossil marine reptiles have hitherto been found in Canada, and our knowledge of the group depends chiefly on well-preserved skeletons from the yellow chalk of Kansas, U.S.A. The new specimens were collected, and are now being prepared for study, by Mr. Charles M. Sternberg, son of Mr. Charles H. Sternberg, who collected most of the specimens from Kansas.