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The four-horned chameleon (Trioceros quadricornis) is a species of chameleon, a lizard in the family Chamaeleonidae. The species is native to highland areas in western Cameroon and southeastern Nigeria.
The four-horned chameleon was first described in 1899 by German naturalist Gustav Tornier. There are three subspecies, including the nominate race, which are recognized as being valid.[2]
Nota bene: A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Trioceros.
The subspecific name, eisentrauti, is in honor of German zoologist Martin Eisentraut.[3]
The four-horned chameleon is found only in some highland areas associated with the Cameroon line across Cameroon and eastern Nigeria; its range includes the Western High Plateau, the Bamboutos massif, Mount Manengouba, Oku Massif, the Bakossi Mountains including Mount Kupe, and the Obudu Plateau in Nigeria. T. q. eisentrauti in particular is endemic to the Rumpi Hills of Cameroon.[2] Overall, T. quadricornis has an extent of occurrence of 13,300 km2 (5,135 sq mi) and an inferred area of occupancy of 1,000 km2 (386 sq mi). The species is primarily associated with relatively intact montane forest with limited human activity, where it has a relatively restricted elevational range of 1,150–2,400 m (3,770–7,870 ft). Research suggests that this is likely to reflect competition with other chameleon species rather than physiological tolerances.[1] The type locality for the species is Mount Manegouba in Cameroon.[2]
Like many other chameleons, the four-horned chameleon has a prehensile tail and single claws on its toes. It usually has four prominent horns, but sometimes two are present with up to four adjacent reduced horns;[4] adults typically grow to a total length (including tail) of 10–14 in (25–36 cm). Male four-horned chameleons have a prominent hemipenal bulge and a gular beard, while some female four-horned chameleons have one horn or even two horns on the tip of the snout.[5] The species almost exclusively feeds on arthropods.[1]
Because of its small and fragmented range coupled with numerous threats to its population, the four-horned chameleon is ranked Vulnerable by the International Union for Conservation of Nature. There are concerns that logging and agricultural expansion may contribute to deforestation and potentially threaten the status of the species by degrading its habitat; in addition, despite its status as a protected Class A species in Cameroon, its intensive exploitation by the pet trade has caused significant population declines in some cases.[1]
The four-horned chameleon (Trioceros quadricornis) is a species of chameleon, a lizard in the family Chamaeleonidae. The species is native to highland areas in western Cameroon and southeastern Nigeria.
Chamaeleo quadricornis Trioceros generoko animalia da. Narrastien barruko Chamaeleonidae familian sailkatuta dago.
Chamaeleo quadricornis Trioceros generoko animalia da. Narrastien barruko Chamaeleonidae familian sailkatuta dago.
Trioceros quadricornis est une espèce de sauriens de la famille des Chamaeleonidae[1].
Cette espèce se rencontre sur les monts Rumpi, Manengouba, Koupé, Bamboutos, Lefo et Oku au Cameroun et sur le plateau Obudu au Nigeria[1].
Selon Reptarium Reptile Database (7 septembre 2015)[2] :
La sous-espèce Trioceros quadricornis eisentrauti est nommée en l'honneur de Martin Eisentraut (1902-1994)[3].
Trioceros quadricornis est une espèce de sauriens de la famille des Chamaeleonidae.
Kameleon czterorogi (Trioceros quadricornis[1][3]) – gatunek jaszczurki z rodziny kameleonowatych (Chamaeleonidae).
Kameleon czterorogi żyje w zachodniej Afryce.
Kameleon czterorogi osiąga długość ciała dochodzącą do 20 cm[4], całkowita z ogonem do 38 cm (samce) i 29 cm (samice)[5]. Ubarwiony jest na zielono. Samce posiadają w czołowej części głowy cztery niewielkie rogi o pierścieniowej budowie. Dwa z nich umiejscowione są w końcowej części pyska, następne dwa mniejsze znajdują się pomiędzy oczami. Na grzbiecie tej jaszczurki rozciąga się wydłużony, gładki i niski grzebień.
Kameleon czterorogi (Trioceros quadricornis) – gatunek jaszczurki z rodziny kameleonowatych (Chamaeleonidae).
Chamaeleo quadricornis[2] este o specie de cameleon din genul Chamaeleo, familia Chamaeleonidae, ordinul Squamata, descrisă de Tornier 1899.[3][4]
Această specie cuprinde următoarele subspecii:[3]
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Acest articol referitor la o reptilă este un ciot. Puteți ajuta Wikipedia prin completarea sa. Chamaeleo quadricornis este o specie de cameleon din genul Chamaeleo, familia Chamaeleonidae, ordinul Squamata, descrisă de Tornier 1899.
Trioceros quadricornis là một loài thằn lằn trong họ Chamaeleonidae. Loài này được Tornier mô tả khoa học đầu tiên năm 1899.[1]
Bài viết liên quan đến bộ bò sát có vảy này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Trioceros quadricornis là một loài thằn lằn trong họ Chamaeleonidae. Loài này được Tornier mô tả khoa học đầu tiên năm 1899.
