PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON 110(3):366-372. 1997. Two new species of salamanders (Caudata: Plethodontidae) of the genera Bolitoglossa and Nototriton from Parque Nacional La Muralla, Honduras James R. McCranie and Larry David Wilson (JRM) 10770 SW 164th Street, Miami, Florida 33157-2933, U.S.A.; (LDW) Department of Biology, Miami-Dade Community College, Kendall Campus, Miami, Florida 33176, U.S.A. Abstract. — Two new species of salamanders of the genera Bolitoglossa and Nototriton are described from the isolated cloud forests of Parque Nacional La Muralla, Honduras. The Bolitoglossa is a member of the B. dunni group and differs from all other group members by having well-defined yellow spots on the lateral surfaces of the body. The Nototriton appears to be most closely related to N. barbouri and can be distinguished from that species by its shorter tail and smaller size. Parque Nacional La Muralla, in the northwestern portion of Departamento de Olancho, Honduras, is herpetologically one of the best known national parks in Hon-duras (Espinal et al. 1997). Espinal et al. (1997) included some recently collected salamanders from the park under the name Nototriton "barbouri" Subsequent study of these salamanders demonstrated that they were likely an undescribed species related to N barbouri. Thus, in July 1996, we re-turned to Parque Nacional La Muralla hop-ing to collect additional specimens of these salamanders. About mid-day on 29 July, we set up a camp at 1430 m elev. at the nearest known source of drinking water to the No-totriton locality. As the Nototriton locality was still a four hour walk from camp, we decided to collect that afternoon and night in the environs of our campsite and go to the Nototriton locality the following day. Unexpectedly, we discovered a brillantly colored undescribed species of Bolitoglossa around the campsite. The following day we made a successful visit to the previously known Nototriton locality. Study of this new material confirmed the distinctness of the Muralla Nototriton. We herein provide a formal description of each of these two salamanders. Methods and Material All measurements were made to the near-est 0.1 mm with dial calipers under a dis-secting microscope. Abbreviations used are SVL (snout to posterior end of vent), HL (head length; snout to gular fold), HW (head width), TL (tail length), HLL (hind limb length), FLL (forelimb length), CLL (combined forelimb and hind limb lengths), HFW (hind foot width), and NL (nostril length). For ease of comparison, the format for the 'Description' and 'Measurements of the holotype' sections for the Bolitoglossa follow that of McCranie & Cruz (1996), whereas those sections for the Nototriton follow the format of McCranie & Wilson (1997). The numbers in parentheses in the color in life descriptions refer to the color codes in Smithe (1975). McCranie & Cruz (1996) listed the adult material of the Bo-litoglossa dunni group recently examined and McCranie & Wilson (1997) listed all material of Nototriton recently examined. The following specimens of Nototriton bar-bouri were re-examined for this study: AMNH 54949; USNM 339700-12. Addi-tionally, a recently collected specimen of N barbouri (USNM 497552: Depto. Atlanti-da, Honduras) was compared to the new