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Full-Text Articles in Life Sciences
New Species Of Pristimantis (Anura: Strabomantidae) From The Amazonian Lowlands Of Southern Peru, Edgar Lehr, Rudolf Von May
New Species Of Pristimantis (Anura: Strabomantidae) From The Amazonian Lowlands Of Southern Peru, Edgar Lehr, Rudolf Von May
Edgar Lehr
We describe a new species of Pristimantis from the Amazonian lowlands in southern Peru (Madre de Dios Region). The new species has a snout–vent length of 22.8–23.4 mm in two adult males (females are unknown), a tympanum barely visible, a W-shaped scapular ridge, the iris bearing a dark vertical bar forming a cross or a T, a cream venter with brown blotches, and groin and concealed surfaces of shanks with a contrasting pattern consisting of yellow and black. It is tentatively assigned to the unistrigatus species Group and is most similar to Pristimantis diadematus and Pristimantis eurydactylus.
Paul Crook, Darwin’S Coat-Tails. Essays On Social Darwinism., David Depew
Paul Crook, Darwin’S Coat-Tails. Essays On Social Darwinism., David Depew
David J Depew
No abstract provided.
Tadpole Of Telmatobius Mayoloi (Anura: Ceratophryidae), Edgar Lehr, Cesar Aguilar
Tadpole Of Telmatobius Mayoloi (Anura: Ceratophryidae), Edgar Lehr, Cesar Aguilar
Edgar Lehr
The tadpole of Telmatobius mayoloi from central Peru (Departamento de Ancash) is described based on specimens ranging from Gosner Stage 28–41. The tadpole of T. mayoloi is similar to other Telmatobius larvae with pond type morphology. Geographically closest to T. mayoloi are Telmatobius carrillae and Telmatobius rimac. The tadpole of T. mayoloi differs from the latter in reaching a maximum total length of 102.1 mm at Stage 38 whereas T. carrillae (maximum total length = 99.20 mm at Stage 39) and T. rimac (maximum total length = 77. 70 mm at Stage 36) are smaller. Furthermore, the snout of the …
Three New Species Of Bryophryne (Anura: Strabomantidae) From The Region Of Cusco, Peru, Edgar Lehr, Alessandro Catenazzi
Three New Species Of Bryophryne (Anura: Strabomantidae) From The Region Of Cusco, Peru, Edgar Lehr, Alessandro Catenazzi
Edgar Lehr
We describe three new species of Bryophryne from the Region of Cusco in southern Peru, increasing the number of currently known Bryophryne to six. One of the new species differs from all species of Bryophryne in having a tympanic annulus and tympanic membrane. Males of this species have vocal slits, a vocal sac, and produce a call, which we analyze herein. This species is found at San Luis, a montane cloud forest along the road from Abra Málaga to Quillabamba at elevations between 3272 and 3354 m. The second new species has an orange throat and groin and is found …
Skeletal Advance And Arrest In Giant Non-Metamorphosing African Clawed Frog Tadpoles (Xenopus Laevis: Daudin), Ryan Kerney, Richard Wassersug, Brian Hall
Skeletal Advance And Arrest In Giant Non-Metamorphosing African Clawed Frog Tadpoles (Xenopus Laevis: Daudin), Ryan Kerney, Richard Wassersug, Brian Hall
Ryan Kerney
This study examines the skeletons of giant non-metamorphosing (GNM) Xenopus laevis tadpoles, which arrest their development indefinitely before metamorphosis, and grow to excessively large sizes in the absence of detectable thyroid glands. Cartilage growth is isometric; however, chondrocyte size is smaller in GNM tadpoles than in controls. Most cartilages stain weakly with alcian blue, and several cartilages are calcified (unlike con- trols). However, cartilages subjacent to periosteum-derived bone retain strong affinities for alcian blue, indicat- ing a role for periosteum-derived bone in the retention of glycosaminoglycans during protracted larval growth. Bone formation in the head, limb, and axial skeletons is …
A New Species Of Minute Noblella (Anura: Strabomantidae) From Southern Peru: The Smallest Frog Of The Andes, Edgar Lehr, Alessandro Catenazzi
A New Species Of Minute Noblella (Anura: Strabomantidae) From Southern Peru: The Smallest Frog Of The Andes, Edgar Lehr, Alessandro Catenazzi
Edgar Lehr
We describe a new species of Noblella from the upper Cosnipata Valley in southern Peru (Cusco Region). Specimens were found in the leaf litter of a cloud forest between 3025 and 3190 m elevation. The most distinctive character of the new species is its diminutive size (maximum SVL female 12.4 mm, male 11.1 mm). With an average snout–vent length of 11.4 mm (n = 7) in adult specimens, the new species is the smallest Andean frog, and one of the smallest anurans in the world. The new frog is rare (between 30 and 75 frogs/ ha) and found only in …
A New Species Of Scinax (Anura: Hylidae) From The Area Of Iquitos, Amazonian Peru, Edgar Lehr, Jiri Moravec, Illich Tuanama, Pedro Perez
A New Species Of Scinax (Anura: Hylidae) From The Area Of Iquitos, Amazonian Peru, Edgar Lehr, Jiri Moravec, Illich Tuanama, Pedro Perez
Edgar Lehr
We describe a new species of the hylid frog genus Scinax from the Peruvian Upper Amazonian Lowlands (area of Iquitos, Region Loreto, Peru). The new species belongs to the Scinax ruber clade and differs from all its members by having the dorsal skin slightly to coarsely shagreen, by lacking conspicuous ulnar and tarsal tubercles, and in life by having a distinct light olive-green coloration on dorsum, bright yellow flanks with distinct black spots, black posterior surfaces of thighs, and gold to bronze iris.
Sky Islands, John Mccormack, Huateng Huang, L. Knowles
Sky Islands, John Mccormack, Huateng Huang, L. Knowles
John E. McCormack
No abstract provided.
Animal Pleasure And Its Moral Significance, Jonathan P. Balcombe
Animal Pleasure And Its Moral Significance, Jonathan P. Balcombe
Jonathan Balcombe, Ph.D.
No abstract provided.
The Evolution Of Flight In Insects: Insights From Mayflies And Dna, T. Heath Ogden
The Evolution Of Flight In Insects: Insights From Mayflies And Dna, T. Heath Ogden
T. Heath Ogden
No abstract provided.