Specimens LSU40793 and LSU40846 were the last recorded specimens, consisting of a male and female collected on the 18th and 19 July 1981 in southwestern Durango, Mexico, most likely around 1.5 miles west of El Salto. While no detailed location information is included in the specimen record, it is noted that the same collector visited this location almost yearly in the late 1960s.
This area contained Pinus durangensis, which are being replanted extensively in an attempt to revive the populationTemplate:Citation needed. It is also unknown whether or not the trees alone will have any effect on the snake population.
Mendoza-Quijano, F. & Santos-Barrera, G. 2007. Adelophis foxi. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 23 April 2008. Template:Use dmy datesfr:Adelophis foxi