Caribbean martin [SEP] parent taxon
Caribbean martin
The Caribbean martin or white-bellied martin ("Progne dominicensis") is a large swallow.
It breeds on Caribbean islands from Jamaica east to Tobago. It is closely related to two species to which it used to be considered conspecific-"P. sinaloae" (Sinaloa martin) and "P. cryptoleuca" (Cuban martin). There are sight records from mainland Central and South America, and most birds appear to migrate to the South American mainland. A single bird was recorded in Key West, Florida, on
Taxon in disguise
In bacteriology, a taxon in disguise is a species, genus or higher unit of biological classification whose evolutionary history reveals has evolved from another unit of similar or lower rank, making the parent unit paraphyletic. This happens when rapid evolution makes a new species appear radically different from the ancestral group, so that it is not (initially) recognised as belonging to the parent phylogenetic group, leaving the latter an evolutionary grade.
While the term is from bacteriology, parallel examples are found throughout the tree of