A New Species of Telmatobius (Anura: Leptodactylidae) From Río Vilama, Northern Chile, and the Redescription of T. Halli Noble

Formas, J. R.; Benavides, Edgar; Cuevas, César C.

doi:10.1655/0018-0831(2003)059[0253:ansota]2.0.co;2

Cited by 17 publications

(42 citation statements)

References 13 publications

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“…and tadpoles with dark coloration on distal extreme of tail (see Formas et al . , , ). Despite differences in the degree of ossification of the cranium, other differences between these species correspond to traits that show variation within a species (e.g.…”

Section: Discussionmentioning

confidence: 97%

“…Identification of specimens was based on original descriptions and the taxonomic key of Formas et al . () for adult Telmatobius . Telmatobius halli and Telmatobius pefauri were not found in spite of an extensive sampling effort.…”

Section: Methodsmentioning

confidence: 98%

“…Samples of one to six individuals of Telmatobius were obtained from the type localities of eight of the ten species present in Chile. Identification of specimens was based on original descriptions and the taxonomic key of Formas et al (2003) for adult Telmatobius. Telmatobius halli and Telmatobius pefauri were not found in spite of an extensive sampling effort.…”

Section: Taxon Sampling and Laboratory Proceduresmentioning

confidence: 99%

“…Few populations of Telmatobius are known in Chile (e.g. Benavides, Ortiz & Formas, 2002;Formas, Benavides & Cuevas, 2003). This is probably because of a lack of exploration as in recent years new populations have been found in this region.…”

mentioning

confidence: 99%

“…It was suggested that the Chilean species of Telmatobius are divided into two geographical groups: northern and southern (Formas et al, 2003). However, these categories do not correspond to natural groups, and the discovery and description of Telmatobius chusmisensis in an intermediate geographical area suggests that this pattern was produced by a low sampling effort (Formas, Cuevas & Nunez, 2006).…”

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confidence: 99%

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A new endemic lineage of the Andean frog genusTelmatobius(Anura, Telmatobiidae) from the western slopes of the central Andes

et al. 2014

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The amphibian genus Telmatobius is a diverse group of species that inhabits the Andes. This study analysed the phylogenetic relationships of 19 species described from the central Andes of Chile and Bolivia, and 12 undescribed populations of Chile. A molecular phylogeny based on mitochondrial DNA 16S and cytochrome b shows that the Chilean species belong to three groups: (1) the Telmatobius marmoratus group, widespread in the Chilean and Bolivian Altiplano; (2) the Telmatobius hintoni group, including the species Telmatobius philippii, Telmatobius fronteriensis, and Telmatobius huayra, occurring in the south‐western Altiplano of Chile and Bolivia, and (3) the Telmatobius zapahuirensis group, a new clade which also includes Telmatobius chusmisensis, Telmatobius dankoi, and Telmatobius vilamensis, restricted to western slopes of the Andes, and which was recovered as more closely related to the T. hintoni group than the T. marmoratus group. The divergence times between clades were traced to the late Pleistocene. The molecular phylogeny also confirmed that the groups of the Altiplano and western Andes slopes form a clade separated from the species that inhabit the eastern Andes (Telmatobius verrucosus and Telmatobius bolivianus groups), supporting the forest origin of the Altiplano groups proposed by several previous authors. © 2014 The Linnean Society of London

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Section: Discussionmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 98%

Section: Taxon Sampling and Laboratory Proceduresmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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A new endemic lineage of the Andean frog genusTelmatobius(Anura, Telmatobiidae) from the western slopes of the central Andes

et al. 2014

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Osteology and postmetamorphic development of Telmatobius oxycephalus (Anura: Telmatobiidae) with an analysis of skeletal variation in the genus

Barrionuevo

2012

Journal of Morphology

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The osteological diversity among species of Telmatobius has been considered conservative. Nonetheless, the degree of ossification of several features varies both intraspecifically and interspecifically. Herein, intraspecific osteological variation and postmetamorphic ontogenetic changes in osteological features are described in Telmatobius oxycephalus. These data are compared with published descriptions of congeners. There is a considerable intraspecific osteological variation in T. oxycephalus, with cranial characters varying polymorphically, and the hyoid and postcranial characters being sexually dimorphic. This intraspecific variation is expressed by subtle differences in the degree of ossification or mineralization. Interspecific variation also can be described in terms of differential development of osteological features; these differences are more obvious than intraspecifically variable characters. The adult skeletons of several species of Telmatobius resemble the morphology observed in early stages of postmetamorphic development of T. oxycephalus. This is especially evident in the neopalatines, parasphenoid, sphenethmoid, exoccipitals, prootics, vomers, nasals, and plectra. These results suggest that within the conservative osteological architecture of Telmatobius, the variation observed is the result of heterochronic changes during the ossification process.

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Variation in the growth and development of the hind limbs in frogs of the genus Telmatobius (Anura: Telmatobiidae)

Barrionuevo

2020

Journal of Morphology

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There are remarkable interspecific differences in the sizes of the larvae of Andean frogs of the genus Telmatobius. This size variation seems to be associated with the duration of the larval stage and may affect the hind-limb morphology in Telmatobius. Larval, juvenile, and adult Telmatobius rubigo and T. oxycephalus were examined to determine the variation in relative sizes of hind-limb elements, their growth patterns during postmetamorphic life, and skeletal ontogeny. The results showed that the proportionately shorter hind limbs of T. rubigo relative to those of T. oxycephalus are associated with the protracted development and ossification of hind limbs during the prolonged larval life of T. rubigo. Postmetamorphically, the hind limbs grew faster than the body in juveniles of both species in contrast to the relative growth rates of the hind limbs and bodies of the adults. The growth phase of juvenile T. rubigo seems shorter than that of juvenile T. oxycephalus; possibly, this heightens the difference in the relative lengths of hind limbs after metamorphosis. Temperature affects the effects of thyroid hormone on growth and development, and T. rubigo lives at much higher, colder elevations than does T. oxycephalus. It is not clear whether the developmental differences described here are plastic (i.e., environmentally induced) or genetically fixed in each species.

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A New Species of Telmatobius (Anura: Leptodactylidae) From Río Vilama, Northern Chile, and the Redescription of T. Halli Noble

Cited by 17 publications

References 13 publications

A new endemic lineage of the Andean frog genusTelmatobius(Anura, Telmatobiidae) from the western slopes of the central Andes

A new endemic lineage of the Andean frog genusTelmatobius(Anura, Telmatobiidae) from the western slopes of the central Andes

Osteology and postmetamorphic development of Telmatobius oxycephalus (Anura: Telmatobiidae) with an analysis of skeletal variation in the genus

Variation in the growth and development of the hind limbs in frogs of the genus Telmatobius (Anura: Telmatobiidae)

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