This species was fully described in 2009 by Petr Necas in the German Journal Sauria. To the best of my knowledge, it is still known from only a single male scientific specimen. Although not ideal, it is not completely uncommon that species are described from a single specimen and additional specimens are not discovered and entered into scientific collections for many years, particularly in remote areas. T. pfefferi was described in 1900 from a single male specimen and was not seen by scientists again until 1990 when three additional specimens, including the first known female, were found and collected.
This is a reference to the number of known preserved specimens in scientific collections. At this point that number has increased but for a long time K. oxyrhina was thought to be quite rare and few had been collected for scientific purposes.
Chris