New T. Rex: a leech with an affinity for the nose

In addition to Phillips, Siddall, Oceguera-Figueroa, and Arauco-Brown, the authors are Gloria P. Gomez, Department of Microbiology at the Universidad Peruana Cayetano Heredia in Lima, March Enteroparasitology years Beltre Laboratory at the Center for Public Health of Peru, and Y-Te Lai of National Taiwan University in Taipei. The research was funded by the National Science Foundation, the Fund for Research Expeditionary Stavros Niarchos, a Theodore Roosevelt Memorial Grant, a grant from CUNY and Sciences.rex has ferociously large teeth lining a single jaw. But its length is less than 2 inches. Tyrannobdella rex, meaning king tyrant leech, is a new type of vampire that lives in remote areas of the Upper Amazon. Although his regular guest remains unknown, was discovered three years ago by a leech when 44.5 mm was torn from the nose of a girl who had recently been swimming in a river.

The evolving relationship between the leeches that currently live in remote areas suggests that the common ancestor of this group must have lived when the continents were pressed into a single landmass of Pangaea first broke.

“We called Tyrannobdella rex because of its huge teeth. In addition, the first species of this family of leeches no doubt shared an environment with dinosaurs about 200 million years ago, when an ancestor of T. Rex may have been others in the nose T. rex, “says Siddall.” The new T-Rex joins four other species that use this abbreviated name, including two Miocene fossils (a snail and a beetle), a Malaysian life Formicidae ant, and, Of course, the famous dinosaur of the Cretaceous, which was previously described in 1905 by a curator at the American Museum of Natural History

The new genus and species, Tyrannobdella rex, has led to a revision of the phylogenetic relationships among the families of many of the leech. Part of the research for this study involved a Mexican expedition by Phillips and Oceguera-Figueroa to collect new specimens for DNA analysis. Near the phylogenetic tree, this group is related to leeches are found in India and Taiwan, as Dinobdella ferox, the terrible, ferocious leech that is well known to feed on the mucous membranes and enter into various human orifices. All of these species and others from Mexico, Africa and the Middle East, the family, a group of leeches Praobdellidae who seems to share this feeding behavior and that may pose a risk to human health in some areas of the world.

The discoveries of new species of leeches are not uncommon. Although there are 600-700 described species of leeches, we think there may be many AS10, 000 species from around the world from areas of sea, land and freshwater. Tyrannobdella rex was brought to the attention of Mark Siddall, curator of the Division of Invertebrate Zoology of the Museum, where he received a specimen collected by Dr. Renzo Arauco-Brown, a Peruvian doctor of medicine, Faculty of Medicine at the Universidad Peruana Cayetano Heredia in Lima, who worked in a clinic in Chanchamayo province. Siddall immediately recognized as a new species. His student Alejandro Oceguera-Figueroa described his strange morphology – a single jaw with eight teeth, the genitalia very large and very small