. Bulletin - United States National Museum. Science. Figure 1"..—Leptacodon ladae Simp- son, no. 9640, right lower jaw: a. Crown view; 6, in- ternal view. Five times natural size. Figure 16.—Leptacodon munuscu- lum Simpson, no. 9819, left lower jaw: a, Crown view; 6, internal view. Five times natural size. Diagnosis.—Slightly larger than L. tener or L. packi and slightly smaller than L. siegfriedti, structurally closer to the former two species (subgenus Leptacodon) than to the latter (subgenus Leipsano- lestes). P4 elongate, paraconid median, metaconid very smaU but in
. Bulletin - United States National Museum. Science. Figure 1"..—Leptacodon ladae Simp- son, no. 9640, right lower jaw: a. Crown view; 6, in- ternal view. Five times natural size. Figure 16.—Leptacodon munuscu- lum Simpson, no. 9819, left lower jaw: a, Crown view; 6, internal view. Five times natural size. Diagnosis.—Slightly larger than L. tener or L. packi and slightly smaller than L. siegfriedti, structurally closer to the former two species (subgenus Leptacodon) than to the latter (subgenus Leipsano- lestes). P4 elongate, paraconid median, metaconid very smaU but in the same poskion as in L. tener, talonid as in that species. Molar paraconids smaller than in L. tener but distinct and internal. Hypo- conulids of M1-3 more projecting than in L. tener. Talonid of M3 more elongate and entoconid smaller. Remarks.—This species is referable to Leptacodon with very little doubt. Although fairly common in the Gidley Quarry, the speci- mens are all very fragmentary, and they add nothing to knowledge of the genus beyond making it a little more Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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