Arguello slender salamander
The Arguello slender salamander ("Batrachoseps wakei") is a species of salamander in the family Plethodontidae. It is endemic to California, where it is found only in a small area of coastal Santa Barbara County. Taxonomy. It was discovered in 2006, when an individual was found in the debris of an abandoned Coast Guard station at Vandenberg Space Force Base. Although this range was within that of the black-bellied slender salamander ("B. nigriventris"), this individual was clearly distinctive from "B. nigriventris" and more closely resembled the Channel Islands slender salamander ("B. pacificus"); due to this, it was  thought to represent an introduced population of "B. pacificus". However, phylogenetic analysis found it to fall outside the "B. pacificus" clade, and to be an undescribed species that was sister to the clade comprising "B. pacificus" and the garden slender salamander ("B. major"). It was described in 2021 as "Batrachoseps wakei", the specific epithet honoring famed herpetologist David B. Wake, who described many species of "Batrachoseps" and had passed away a few months prior to the publishing of the paper. It is likely that this species evolved due the activity of the Southern California faults, with tectonic activity transporting the  land inhabited by the ancestral "Batrachoseps" north and isolating it from its closest relatives, causing it to diverge into a distinct species. Distribution. It is restricted to a narrow marine terrace centered on Point Arguello. It is thought to be a relict species with a very small range. Description. This is a relatively large "Batrachoseps" species with a dorsal pattern of vermiculate tan markings. Males can grow to and females to in snout–vent length. It differs from its closest relatives in its smaller head, lack of melanophores on the throat and chest, and extensive orange patterns on the tail