CENTRARCHIDZ. 
31 
The most striking differences are shown in the following comparative 
table of characters :— 
Dorsal rays (usually) ..- 
Anal rays (usually) 
Head in length 
Depth in length 
Lateral line 
Ventral spine in head 
Ventral spine reaching - 
Longest dorsal spine in head 
Longest soft dorsal ray in head 
Longest soft anal ray in head 
Mandible 
C. macropterus, (Lac.) Jor., 
Ocmulgee River, Ga. 
D4] Ha Re ae 
More than half head - 
C. irideus, (Lac.) C. & V., 
Coosa River, Ala., Neuse 
River, N.C. 
XI, 12. 
VII, 14. 
3k, 
2. 
5-44-14. 
24. 
.| Not to vent. 
13. 
13. 
1 
Less than half head. 
The coloration in the two species appears to be essentially the same. 
GENERA OF CENTRARCHID. 
Prof. Gill now recognizes sixteen genera of Centrarchida, for which 
he suggests the following sequence, beginning with the most general- 
ized type, Micropterus. 
Subfamily MICROPTERINA, Gill. 
oo bo 
. Apomotis, Raf. 
8. Xenotis, Jordan. 
12. Enneacanthus, Gill. 
. Chenobryttus, Gill. 
. Ambloplites, Raf. 
Lepiopomus, Raf. 
1. Micropterus, Lacépede. 
Subfamily LEPIOPOMINA, Gill. 
Si: 
§ 2. 
4, Archoplites, Gill. 
5. Acantharchus, Gill. 
9. Xystroplites, Jordan. 
§ 3. 
11. Mesogonistius, Gill. 
§ 4. 
13. Hemioplites, Cope. 
10. Hupomotis, Gill & Jordan. 
14. Copelandia, Jordan. 
