A method for correcting log-derived temperatures in deep wells (3500–6500 m) has been developed by comparing log temperatures from the Gulf of Campeche (Mexican Gulf of Mexico) with DST temperatures in the same wells. The equations developed in this study are modified slightly from those of Waples & Mahadir Ramly (2001) , which were calibrated using data from depths <3500 m in Malaysia. The correction depends strongly on time since end of mud circulation ( TSC ) and, to a much lesser degree, on depth. In this study the true subsurface temperature (Celsius) is given by \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} T_{true}=T_{surf}+f{\cdot}\left(T_{meas}{-}T_{surf}\right){-}0.001391\left(Z{-}4498\right)\end{document} where f =1.32866 −0.005289 TSC , T surf is the seafloor or land-surface temperature (°C), T meas is the measured log temperature (°C), TSC is in hours and Z is depth below seafloor in metres. If TSC is unknown, it can be estimated from the trend of TSC with depth. An estimate of the uncertainty in the corrected temperature is obtained from the equation: \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} {\sigma}=0.10842^{{-}0.029TSC}\end{document} where σ is the standard deviation of the correction factor f . The uncertainty in the correction factor f can be expressed as ±2 σ .

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This is the first documented register of a Versicolored Emerald (Amazilia versicolor) in the Central Department, Paraguay, in 2018. There was a written register from the year 1920, but without photographic evidence. The observation was made on May 30th, 2018, with an adult being photographed and filmed at the Faculty of Veterinary Sciences of the National University of Asunción. This finding took place at approximately 95 km west from the species´ known distribution, which probably makes the observed individual an accidental visitor.