Figure 23 [Copyright: American Fisheries Society]
Figure 22 [Copyright: American Fisheries Society]
| EKEY - The Electronic Key for Identifying Freshwater Fishes | ||||||||
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| Esocidae:1a | Median fins having spots or streaks; subocular bar absent or vague; opercle about half scaled (Figure 23 B); mandibular pores usually 5 or more on each side, rarely as few as 4 on one side only (Figure 23 B); pelvic rays usually 10-13 | Esocidae:2 |
| Esocidae:1b | Median fins unmarked; subocular bar prominent; opercle fully scaled (Figure 22 A, B); mandibular pores usually 4 on each side, rarely 3 or 5 on one side only; pelvic rays usually 8-10 | Esocidae:3 |
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Click the image to check for a higher-resolution version. Figure 23 [Copyright: American Fisheries Society] |
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| Figure 23: (A) Esox niger, distance "A" greater than distance "B". (B) E. americanus, distance "A" about equal to distance "B". Both have cheek and opercle fully or nearly fully scaled. | |
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Click the image to check for a higher-resolution version. Figure 22 [Copyright: American Fisheries Society] |
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| Figure 22: (A) Esox lucius, check almost completely scaled, mandibular pores (one side) usually 5. (B) E. masquinongy, lower half of cheek naked, mandibular pores (one side) usually 6-9. |
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