Post-labial groove on lower jaw | Genera |
Absent; lower lip contiguous with isthmus without demarcation (Fig. 17a) |
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Interrupted (Fig. 17b) |
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Continuous (Fig. 17c) |
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Gill openings extend onto venter | Yes | No; not extending below pectoral fin base | No; not extending below pectoral fin base | No; not extending below pectoral fin base |
Teeth in upper and lower jaws | Homodont; small, pointed | Homodont; small, pointed | Homodont: strong, distally flattened | Homodont; small, pointed |
Tooth patches in upper jaw | Joined, forming a crescent-shaped band | Joined, forming a crescent-shaped band | Joined, forming a slightly crescentshaped band | Joined, not produced posteriorly at sides |
Branched pectoral fin rays | 10-12 | 12-14 | 10-11 | 13-16 |
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Teeth in lower jaw | Homodont: pointed | Heterodont; spatulate at front, pointed at rear | Homodont: oarshaped, flatted distally | Heterodont: spatulate at front, pointed at rear |
Tooth patches in upper jaw | Joined, appearing united, not produced posteriorly at sides | Joined, appearing united, rounded laterally | Separated | Separated |
Teeth in upper jaw | Homodont: pointed | Homodont: pointed | Homodont: oarshaped, flatted distally | Heterodont: teeth spatulate at front, pointed at rear |
Branched pectoral fin rays | 10, 16-19 | 16-18 | 10-11 | 16-18 |