3 documents found, page 1 of 1
Distribution, vocalization and taxonomic status of hypsiboas roraima and h. ang...
Barrio-Amorós, César L.; Señaris, Josefa Celsa; Macculloch, Ross D.; Lathrop, Amy; Guayasamin, Juan M.; Duellman, William E.The distribution of the poorly known hylid frog Hypsiboas roraima Duellman & Hoogmoed, on the Guiana Shield is redefined, including new records from Venezuela. The advertisement call of this species is analyzed and Hypsiboas angelicus Myers & Donnelly is associated as a junior synonym of H. roraima.; Redefinimos la distribución del hílido guayanés Hypsiboas roraima Duellman & Hoogmoed. Analizamos su canto y con...
The genus Oxyrhopus (Serpentes: Dipsadidae: Xenodontinae) in Guyana: morphology...
MacCulloch, Ross D.; Lathrop, Amy; Kok, Philippe J. R.; Ernst, Raffael; Kalamandeen, MichelleConsiderable confusion exists regarding taxonomy and distributions of Oxyrhopus in northern South America. Specimens and records of Oxyrhopus from Guyana were examined. Oxyrhopus melanogenys, O. occipitalis and O. petola occur in Guyana. Data on morphology and colouration of these species are presented. Species distributions and characters to distinguish among the species are discussed.; Existe uma considerável...
Otophryne (Anura: Microhylidae) from the highlands of Guyana: redescriptions, v...
MacCulloch, Ross D.; Lathrop, Amy; Minter, Leslie R.; Khan, Samir Z.Recent collections are used to expand existing descriptions of adults of Otophryne robusta and O. steyermarki.The calls of O. pyburni and O. robusta are compared. Tadpoles of O. robusta and O. steyermarki are described. Characters for distinguishing among adults and tadpoles of these two species and O. pyburni are provided. Otophryne is a Guiana shield endemic; O. pyburni is widespread at lower elevations, wher...