LEIDYOSUCHUS STERNBERGII, A NEW SPECIES OF CROC ODILE FROM THE CERATOPS BEDS OF WYOMING. By Charles W. Gilmore, Custodian of Fossil Reptiles, U. S. National Museum. The Division of Vertebrate Paleontology of the U. S. National Museum has recently acquired from Mr. C. IT. Sternberg, of Law-rence, Kansas, an unusually well-preserved crocodilian skull and jaws associated with other parts of the skeleton. The specimen was found by his son, Mr. Charles M. Sternberg, on the north side of the Cheyenne River, in the Ceratops Beds of Converse County, Wyoming, during the summer of 190!). Although there is abundant evidence of the existence of crocodiles in these beds, well-preserved specimens are exceedingly rare. Such fragmentary remains as have been found from time to time paleon-tologists have usually referred to Crocodilus Jiumilis Leidy, a Judith River species founded upon insufficient evidence, and as Hatcher" has pointed out, "the simple conical teeth upon which the species was based furnish no characters for the positive identification of ot her material." The specimen considered here, I refer to the recently established genus Leidyosuchus of Lambe, 6 which is founded upon specimens from the Judith River Beds (Belly River) of Alberta, Canada. Even though it occurs in a geological horizon of considerably later age, no characters were detected which would justify more than its spe-cific separation from Leidyosuchus canadensis Lambe, and I there-fore take great pleasure in naming the species after the veteran col-lector, Mr. C. II. Sternberg, whose devotion to paleontology has done so much to further that science. a Bull. No. 257, U. S. Geol. Surv., L905, i>. 82. bTmns. Royal Soc. Canada, vol. I, L908, pp. 219 244. Proceedings U. S. National Museum, Vol. 38— No. 1762. 185
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