LIST OF ILLUSTRATIONS. 
PLATE I. 
1. Ichthelurus furcatus, (Cuv. & Val.) Gill. Texas. (From types of “ aginis”—No. 
837.) p. 75. 
2. Ichthelurus furcatus, (Cuv. & Val.) Gill. Texas. (From types of “affinis”—No. 
837.) p. 75. 
3. Ichthelurus robustus, Jordan. Locality uncertain (From type—No. 20056.) p. 76. 
PLATE II. 
4, Ichthelurus robustus, Jordan. Locality uncertain. (From type—No. 20056.) p. 76. 
4 (b). Ichthelurus robustus, Jordan. Illinois River. p. 76. 
PLATE III. 
5. Ichthelurus punctatus, (Raf.) Jordan. French Broad River. p. 76. 
PLATE IV. 
6. Ichthelurus punctatus, (Raf.) Jordan. French Broad River. p. 76. 
7. Ichthelurus meridionalis, (Giinther) Jordan. Guatemala. (From Giinther’s 
figure.) p. 78. 
8. Ichthelurus meridionalis, (Giinther) Jordan. Guatemala. (From Giinther’s 
figure.) p. 78. 
\ PLATE V. 
9. Amiurus lupus, (Grd.) Giinther. Texas. (From type—No. 916.) p. 83. 
10. Amiurus lupus, (Grd.) Giinther. Texas. (From type—No. 916.) p. 83. 
PLATE VI. 
11. Amiurus niveiventris, Cope. Neuse River. (From type.) p. 83. 
12. Amiurus niveiventris, Cope. Neuse River. (From type.) p. 83. 
13. Amiurus nigricans, (Le 8.) Gill. Lake Erie. p. 83. 
PLATE VII. 
14 (6). Amiurus nigricans, (Le s.) Gill. Ohio River, Leavenworth, Ind. p. 83. 
PLATE VIII. 
14 (¢c). Amiurus nigricans, (Le 8.) Gill. Ohio River, Leavenworth, Ind. p. 83. 
PLATE IX. 
14 (d). Amiurus nigricans, (Le S.) Gill. Florida. (From a mounted skeleton.) p. 83. 
PLATE X. 
15. Amiurus albidus, (Le 8.) Gill. Potomac River. (From No. 20925.) p. 84. 
16. Amiurus albidus, (Le 8.) Gill. Potomac River. (From No. 20925.) p. 84. 
’ PLATE XI. 
17. Amiurus lophius, Cope. Potomac River. p. 85. 
PLATE XII. 
18, Amiurus lophius, Cope. Potomac River. p. 85. 
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