In English
The holotype of Liolaemus melanops Burmeister, 1888 given as destroyed since several years, was luckily recovered at the Natural History National Museum of Buenos Aires, Argentina, and a new careful description is provided in this article. Its remarkable black pigmentation on head and belly is pointed out and the general distribution of such a unusual color pattern in Lizards, above all in Iguania, is briefly analyzed and commented.
In Spanish
El holótipo de Liolaemus melanops Burmeister, 1888 hasta ahora considerado como perdido o destruido, ha sido felizmente hallado en el Museo Argentino de Ciencias Naturales en Buenos Aires, Argentina. Se da aquí su completa redescriptión y sus medidas, seguidas por breves notas sobre la melanocefalia en los lacertideos, observada particularmente en los iguanideos (Iguania).