a pore below the humeral process. The depressed pectoral spine overlies this pore and is then in contact with the secretion from the gland. Usually likened to a bee sting, the effect of the wound is temporarily extremely painful, but in our experience it is localized and rarely of long duration. The larger catfishes (e.g., Ameiurus and Ictalurus) share the stinging ability as young but the axillary gland is less well developed, especially in larger specimens. In Ictalurus lacustris the pore closes early in life. Schilbeodes is distinguished from the other genera of the Ameiuridae, except Noturus, in having the adipose fin adnate to the caudal fin. From Noturus, Schilbeodes differs in lacking the lateral backward projections of the transverse band of premaxillary teeth. Ten species of Schilbeodes are currently recognized (Jordan and Evermann, 1896: 144-149). Four of these have been discussed recently by Hubbs and Raney (1944), who indicated that certain changes in nomenclature were called for and that S. marginatus is a complex of two subspecies. Misled by the marked sexual dimorphism in S. eleutherus, Hubbs (1930: 432) reported females from the Ohio River drainage and Huron River, Michigan, as S. furiosus. When the differences were recognized as sexual, furiosus was regarded as confined to streams of eastern North Carolina, and was first treated as perhaps conspecific with eleutherus (Hubbs and Lagler, 1941: 65), and later as specifically distinct (Hubbs and Lagler, 1947: 73). The distribution of S. eleutherus (in the Ohio River basin including the Tennessee system, in tributaries to western Lake Erie, and in parts of the Arkansas River system) overlaps that of miurus broadly, and these species are sharply differentiated (Hubbs and Lagler, 1947: 72-73). In many localities they live together. Although for