Thevetia and Nomocharis, have which mutual detail characteristic?
Thevetia Thevetia is a genus of flowering plants in the dogbane family, Apocynaceae, first described for modern science as a genus in 1758. It is native to Mexico, Central America, South America, and Cuba. The taxonomy of the genus is controversial, with some authors including "Cascabela" within "Thevetia", while others accept the two genera as separate.
Negaprion Negaprion is a genus of requiem sharks in the family Carcharhinidae, containing the two extant species of lemon sharks: the lemon shark ("N. brevirostris") of the Americas, and the sicklefin lemon shark ("N. acutidens") of the Indo-Pacific. Both species are large, slow-moving, bulky sharks inhabiting shallow coastal waters, and can be identified by their short, blunt snouts, two dorsal fins of nearly equal size, and uniform yellowish brown or gray coloration.