M. mipartitus has a cylindrical body that can reach a total length (including tail) of 140.6 cm (55.4 in).

[7] The diet of M. mipartitus is mainly based on snakes (e.g., Atractus werneri, A. sanctamartae, Leptotyphlops spp.)

Incubation period lasts between 73–87 days, total length of each hatchling varies from 20–21.9 cm (7.9–8.6 in) and weight is around 3.3 g (0.12 oz).

[2] The IUCN Redlist restricts its range to Panama, Colombia, Venezuela, and Ecuador, and possibly Peru.

[2] The red-tailed coral snake has a potentially deadly neurotoxic venom, which produces a complete depolarizing muscle block.

[11] After the bite, local pain and paraesthesia appear in minutes, in severe cases, neurological manifestations appear in 30 minutes to 1–2 hours, such as progressive bilateral ptosis, dysarthria, progressive weakness in the muscles of the extremities, difficulties in walking, salivation, drowsiness, respiratory arrest, flaccid quadriparesis and severe flaccid quadriplegia.