PLATE 3 



Left pectoral spines of members of the subgenera Noturus and Schilbeodes, and of hybrids 

 among the species of Noturus, all drawn to the same scale. [Figure 2 was drawn by Dorothea 

 Schultz; all others by W. L. Brudon.] 



Figure 1. Noturus gyrinus (Mitchill) (female; SL 52.8 mm.). UMMZ 152504, Missouri: 

 Clear Cr., 2 mi. W. of Knobnoster, Johnson Co. 



Figure 2. Noturus lachneri, new species (male; SL 69.5 mm.). USNM 165901, Arkansas: 

 trib. of Saline R., 1 mi. NW. Benton, Saline Co. 



Figure 3. Noturus exilis Nelson (female; SL 55.9 mm.). UMMZ 111413, Missouri: 

 Niangua R., U.S. Hwy. 66, E. of Marshfield, Webster Co. 



Figure 4. Noturus leptacanthus Jordan (female; SL 51.8 mm.). UMMZ 110975, Florida: 

 Spring Cr., 3 mi. SE. of Marianna, Jackson Co. 



Figure 5. Noturus nodurnus Jordan and Gilbert (female; SL 58.2 mm.). UMMZ 139501, 

 Missouri: St. Francis R., near Saco, Madison Co. 



Figure 6. Noturus insignis (Richardson) (female; SL 62.3 mm.). UMMZ 109631, New 

 York: Tioughnioga R., Itaska, Broome Co. 



Figure 7. Noturus funebris Gilbert and Swain (female; SL 70.4 mm.). DBUF, Florida: 

 stream at Portland, 4 mi. W. of Freeport, Walton Co. 



Figure 8. Noturus phaeus, new species (female; SL 53.5 mm.). UMMZ 161058, Mississippi: 

 Mimosa Spa, 1.5 mi. N. of Waterford, Marshall Co. 



Figure 9. Noturus gilberti Jordan and Evermann (female; SL 64.5 mm.). CU 20767 , 

 Virginia: Roanoke R., Glenvar, Roanoke Co. 



Figure 10. Noturus flavus Rafinesque (female; SL 71.3 mm.). UMMZ 165842, Michigan: 

 Huron R., below North Territorial Road, Washtenaw Co. 



Figure 11. Hybrid: Noturus exilis Nelson X Noturus miurus Jordan (male; SL 51.1 

 mm.). UMMZ 137904, Oklahoma: Poteau R., Slate Ford, Le Flore Co. 



Figure 12. Hybrid: Noturus gyrinus (Mitchill) X Noturus miurus Jordan (se.x.?; SL 

 108.8 mm.). UMMZ 157214, Michigan: Huron R., N. of Milford, Oakland Co. 



