At the edges of those areas, contact between different morphs of the mimic poison frog results in the generation of hybrids with truly unique color patterns.
In many populations of this species the females are polymorphic; i.e., a number of different types (morphs) of coloration are found, with each morph a mimic of a species of inedible butterfly of another genus (either Danaus or Amauris).
Two species of Heliconius (H. melpomene and H. erato) are polymorphic, however, with each morph in one species duplicated by one in the other and with the morphs of each pair having virtually contiguous geographic ranges.
Coexisting limnetics and benthics are genetically different and reproductively isolated, so we consider them to be distinct species rather than morphs of a single species.
Fig. 3 Nemestrinid flies M. longirostris with a tongue length of approximately 50 millimeters probe flowers of two morphs of L. anceps that differ in tube length.
Major alkaloids were reported in ascidians of purple, blue, green, and brown morphs of Cystodes dellechiajei collected from Mediterranean Sea [16].
The advanced studies of the mitochondrial DNA of the distinct colour morphs of C. dellechiajei exhibited weak a correlation between the chemotypes, morphotypes (spicules), and genotypes with the clear relationship among the colour of the purple morph and the pyridoacridines.
Meanwhile, both morphs have well developed stigmatic papillae, two ovules per ovary, and frequently set fruit at the study site, indicating that the flowers of both morphs of P. cephalophora are hermaphroditic.
We tested this hypothesis by exposing the three different colour morphs of the aposematic wood tiger moth, Arctia plantaginis, existing in Finland to local wild-caught predators (blue tits, Cyanistes caeruleus).
So the New Zealanders were rating morphs of faces they knew from New Zealand TV and sports, plus morphs of totally unfamiliar faces; and the Dutch volunteers were doing the equivalent.
In the early 1990s, Bennett noted that the two major morphs of pteranodont present in the Niobrara Formation were precisely separated in time with little, if any, overlap.
