Ololygon tripui
| Ololygon tripui | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Ololygon tripui | ||||||||||||
| ( Lourenço , Nascimento & Pires , 2010) |
The neotropical frog Ololygon tripui ( synonym : Scinax tripui ) belongs to the subfamily knick-toe tree frogs within the tree frog family . The name comes from Ityra-poi ( Tupí-Guaraní ) and means small mountain , like the name of the largest river of the Estação Ecológica do Tripuí, where the species was discovered.
According to Lourenço et al. (2010) the species within the genus Scinax was included in the Scinax catharinae clade, which was raised to the genus Ololygon in 2016 .
description
Ololygon tripui is a medium-sized species in the genus . Measurements of head-to-torso length by Lourenço et al. (2010) found 23.6 ± 1.27 mm for males (n = 32) and 38.7 ± 0.8 mm for females (n = 5); the females are therefore significantly larger. The color of the top of the body is light brown with dark brown stripes, the light brown snout is irregularly spotted with dark brown. The species is most closely related to Ololygon flavoguttata , but differs from this knee-toe tree frog in its light greenish coloration of the groin region and inner thighs, its egg-shaped snout (viewed from above), the presence of oestrus calluses and the fact that both males and females are smaller are. The nostrils of the brown colored tadpoles are on the top of the body, the eyes are dorsolateral. The larvae have golden spots between the nostrils and eyes. The small breathing opening is located roughly at the transition from the dorsal to the ventral side.
distribution
The species was first discovered in 2009 in the Brazilian state of Minas Gerais in the Estação Ecológica do Tripuí area near Ouro Preto and described in 2010. However, since some areas in south-east Brazil are still relatively little explored with regard to their anura fauna, the species can also be more widespread.
Habitat and Ecology
So far, the species has only been found on vegetation on streams of the Estação Ecológica do Tripuí and mainly in the cold season from April to September. During this time only callers from the males were recorded, so that the spawning season of the species falls into this period. Calling males sat about 1 m next to each other and are therefore not very territorial. Eggs were found in quiet parts of the streams and were released directly onto the soil substrate. The tadpoles are diurnal and can be found near the surface of the water. At night they hide under leaves and stones. The larvae take about a month to metamorphose. Most of the juveniles were found in late August.
Individual evidence
- ^ ACC Lourenço, LB Nascimento & MRS Pires: A new species of the Scinax catharinae species group (Anura: Hylidae) from Minas Gerais, southeastern Brazil . Herpetologica 65, 4, pp. 468-479, 2010 "2009".
- ^ William E. Duellman, AB Marion & S. Blair Hedges: Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae). Zootaxa, 4104, pp. 1–109, 2016
literature
- Lourenço, ACC, Nascimento, LB & MRS Pires (2010 "2009"): A new species of the Scinax catharinae species group (Anura: Hylidae) from Minas Gerais, southeastern Brazil . Herpetologica 65 (4): 468-479.
Web links
- Darrel R. Frost: Ololygon-tripui , Amphibian Species of the World: an Online Reference, Version 6.0, American Museum of Natural History, 1998-2019, accessed August 10, 2019