| 1 | Monadal pattern with white or yellowish edges of black rings separated by red rings; black head cap from rostral to parietals; tail with black and white rings | Micrurus corallinus |
| – | Triad pattern separated by red rings; black rings of similar size intercalated with white rings; 8–12 triads on body; divided cloacal plate; 212–244 ventrals; 18–30 subcaudals | Micrurus ibiboboca |
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