Physical Description - The most obvious feature that distinguishes P. pauleyi from P. wehrlei, P. punctatus, P. dixi, and P. jacksoni is the presence of two rows of yellow, dorsal spots. These loosely paired spots begin at or posterior to the insertion of the forelimbs and run down the dorsum to just posterior to the insertion of the hind limbs. These spots normally number between 6 and 12 on a side. Neither P. dixi nor P. punctatus normally have dorsal spots, and spots on P. wehrlei and P. jacksoni are reddish in color, never yellow. The spots are fainter in older individuals. Plethodon pauleyi is also distinguishable from other members of the species group by its ventral coloration. This new species has a grayish, translucent venter with lightly pigmented mottling whereas P. wehrlei and P. punctatus both have darkly pigmented venters with little mottling and a noticeably lighter gular region. Compared to the relatively dark, almost salt-and-pepper mottling on the venter of both P. dixi and P. jacksoni, the mottling on the venter of P. pauleyi is more lightly pigmented. Additionally, P. pauleyi can be diagnosed by having only two costal grooves between the adpressed limbs as opposed to three or four in P. wehrlei, P. jacksoni, and P. dixi (Fowler & Dunn 1917; Pope & Fowler 1949; Newman 1954), and 2 or 3 in P. punctatus (ZIF unpublished data).

• Altig, Ronald & McDiarmid, Roy W. 2015. Handbook of Larval Amphibians of the United States and Canada. Cornell University Press, Ithaca, NY. 341 pages.
• AmphibiaWeb. 2020. University of California, Berkeley, CA, USA.
• Burger, J.W., 1935, Plethodon cinereus (Green) in eastern Pennsylvania and New Jersey, Am. Nat., Vol. 69, Num. 725, pg. 578-586
• Conant, R., 1975, A field guide to reptiles and amphibians of Eastern and Central North America, 429 pgs., Houghton Mifflin Co., Boston, MA
• Felix, Zachary I., Wooten, Jessica A., Pierson, Todd W. & Camp, Carlos D., 2019, Re-evaluation of the Wehrle’s salamander (Plethodon wehrlei Fowler and Dunn) species group (Caudata: Plethodontidae) using genomic data, with the description of a new species, Zootaxa 4609 (3), pp. 429-448: 440-443
• Fraser, D.F., 1976, Empirical evaluation of the hypothesis of food competition in salamanders of the genus Plethodon, Ecology, Vol. 57, pg. 459-471
• Grizzell, R.A., 1949, The hibernation of three snakes and a salamander, Copeia, Vol. 1949, Num. 3, pg. 231-232
• Heatwole, H., 1962, Environmental factors influencing local distribution and activity of the salamander Plethodon cinereus, Ecology, Vol. 43, pg. 460-472
• Jaeger, R.G., 1972, Food as a limited resource between two species of salamanders, Ecology, Vol. 53, pg. 535-546
• Jaeger, R.G., 1978, Plant climbing by salamanders: Periodic availability of plant-dwelling prey, Copeia, Vol. 1978, pg. 686-691
• Jaeger, R.G., 1979, Seasonal spatial distributions of the terrestrial salamander Plethodon cinereus, Herpetologica, Vol. 35, pg. 90-93
• Lotter, F., 1978, Reproductive ecology of the salamander Plethodon cinereus (Amphibia, Urodela, Plethodontidae) in Connecticut, J. Herpetol., Vol. 12, Num. 2, pg. 231-236
• Minton, S.A., 1972, Amphibians and Reptiles of Indiana, Indiana Academy of Science Monograph, Vol. 3, 346 pgs., Indiana Academy of Science, Indianapolis
• Robyn, S.D., Jaeger, R.G., 1981, Prey location through chemical cues by a terrestrial salamander, Copeia, Vol. 1981, pg. 435-440
• Bishop, S.C., 1943, Handbook of Salamanders, 555 pgs., Comstock Publ. Co., New York, NY
• Martof, B.S., Palmer, W.M., Bailey, J.R., Harrison, III J.R., 1980, Amphibians and Reptiles of the Carolinas and Virginia, 264 pgs., UNC Press, Chapel Hill, NC