Yates Comb rat
| Yates Comb rat | ||||||||||||
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| Ctenomys yatesi | ||||||||||||
| Gardner , Salazar-Bravo & Cook , 2014 |
The Yates crested rat ( Ctenomys yatesi ) is a type of crested rat . The species, which was first scientifically described in 2014, is only known from its first location west of the city of Roboré in the Santa Cruz department in eastern Bolivia .
features
The Yates comb rat reaches a total length of 19.9 to 22.0 centimeters and a tail length of an average of 5.3 to 6.3 centimeters. The average ear length is 5 millimeters and the average hind foot length is 30 to 35 millimeters. It is a comparatively small species of the genus and the smallest species of the crested rats in Bolivia. The fur on the back is thin-haired and soft. It is hazel brown, the belly side is medium gray at the base and washed out with a lighter gray. The front and rear legs, like the back, are hazel brown. The tail is strong and darker on top than on the underside.
The skull has a length of 31.9 to 36.7 millimeters and a width in the area of the zygomatic arches of 19.7 to 22.9 millimeters. It is narrow and strong, the zygomatic arches are also strong and widest in the front of the skull. The tympanic membranes are flattened and slightly larger than 30% of the length of the skull. The nasal bones are broad and short. The upper incisors are large, orthodontic and covered with orange enamel .
distribution
The Yates crested rat lives in an area west of the city of Roboré in the Santa Cruz department in eastern Bolivia at an altitude of 550 meters.
Way of life
The habitats of the Yates crested rat are shaped by the savannah steppes of the Cerrado areas in eastern Bolivia, which are located between the almost evergreen forest areas of the Chiquitano forests of the region. The vegetation of the habitats typically consists of various savanna plants such as Hymenaea stigonocarpa (Fabaceae), Luehea candicans (Tiliaceae), Bredemeyera oribunda (Polygalaceae), Terminalia argentea and Terminalia fagifolia (Combretaceae) as well as Anacardium humile (Anacardiaceae).
Like all other crested rats, it lives on the ground and digs in the ground. No information is available about their way of life.
Systematics
The Yates comb rat is classified as an independent species within the genus of the comb rats ( Ctenomys ), which consists of about 70 species. The first scientific description of the species comes from Scott Lyell Gardner , Jorge Salazar-Bravo and Joseph A. Cook from 2014. They described the species on the basis of molecular biological and anatomical features and formed with it and those also described in the same publication and in Bolivia occurring Anderson crested rat ( Ctenomys andersoni ) and Erika crested rat ( Ctenomys erikacuellarae ) a common taxon within the crested rats . Originally the animals were assigned to the dwarf crested rat ( Ctenomys minutus ) found in the south of Brazil . The species was named after the biologist Terry L. Yates (1950-2007), the former curator for mammals of the Museum of Southwestern Biology at the University of New Mexico .
Apart from the nominate form, no further subspecies are distinguished within the species .
Status, threat and protection
The Yates comb rat is not listed by the International Union for Conservation of Nature and Natural Resources (IUCN) so far (as of January 2019).
supporting documents
- ↑ a b c d e f g Scott Lyell Gardner, Jorge Salazar-Bravo, Joseph A. Cook: New Species of Ctenomys Blainville 1826 (Rodentia: Ctenomyidae) from the Lowlands and Central Valleys of Bolivia. Faculty Publications on the Harold W. Manter Laboratory of Parasitology, Special Publications, Museum of Texas Tech University 62, 2014; Pp. 1-34; Full text .
- ↑ a b c d e f g h Yates Tuco-tuco. In: TRO Freitas: Family Ctenomyidae In: Don E. Wilson, TE Lacher, Jr., Russell A. Mittermeier (editor): Handbook of the Mammals of the World: Lagomorphs and Rodents 1. (HMW, Volume 6) Lynx Edicions, Barcelona 2016, pp. 514-515. ISBN 978-84-941892-3-4 .
literature
- Yates Tuco-tuco. In: TRO Freitas: Family Ctenomyidae In: Don E. Wilson, TE Lacher, Jr., Russell A. Mittermeier (editor): Handbook of the Mammals of the World: Lagomorphs and Rodents 1. (HMW, Volume 6) Lynx Edicions, Barcelona 2016, pp. 514-515. ISBN 978-84-941892-3-4 .
- Scott Lyell Gardner, Jorge Salazar-Bravo, Joseph A. Cook: New Species of Ctenomys Blainville 1826 (Rodentia: Ctenomyidae) from the Lowlands and Central Valleys of Bolivia. Faculty Publications on the Harold W. Manter Laboratory of Parasitology, Special Publications, Museum of Texas Tech University 62, 2014; Pp. 1-34; Full text .