*Sivatherium, xxxiii, 104.
Sorex, note on two, J. H. Linsley, xxxix, 388.
— brevicaudatus, J. T. Plummer, xlvi, 237.
Squirrels containing larvæ of Estrus, xlvi, 244.
Stenorhyncus leptonyx, a seal, remarks on, xl, 390.
*Sus americana, in Georgia, R. Harlan, xliii, 143.f
*Tapir, at Darmstadt, xxvi, 218.
*—, tooth of, in Louisiana, W. C. Carpenter, xlii, 390.f
*Tetracaulodon, a bad genus, remarks on, xliii, 142.
*—, R. Harlan, xlv, 210.