Species Description: Campbell JA, Smith EN, Streicher J, Acevedo ME, Brodie Jr ED 2010 New salamanders (Caudata: Plethodontidae) from Guatemala, with miscellaneous notes on known species. Misc Publ Mus Zoology Univ Mich 200: 1-66.
Originally mistaken for Bolitoglossa rostrata, B. nussbaumi is smaller, more slender, and has shorter limbs. In comparison to B. cuchumatana, B. nussbaumi does not have fully webbed feet and has larger feet and hands. It has less webbing on the feet and a shorter tail than B. engelhardti and all members of B. helmrichi group. Bolitoglossa morio is much larger and has a dark gray to black coloration with pale markings along its flank and pale dotting all over most of its body. Bolitoglossa nussbaumi is larger in body size, has larger hands and feet, and has more costal folds separating adpressed limbs than the much smaller B. pacaya (Campbell et al. 2010).
In preservative, a wide, bronze to orange-tan dorsal band runs dorsolaterally from the posterior of the eye to the base of the tail. This band may have a distinct delineation of the darker brown or pale lateral lines of its body. These dark brown sides extend down from a dark brown head cap and end in a triangle pointing posteriorly on the proximal third of the tail. These brown sides gradually blend ventrolaterally into the yellow pigmentation of the ventral surface. The chin and the ventral side of the tail are a slightly darker shade of yellow while the limbs display a dorsal bronze to orange coloration (Campbell et al. 2010).
Colors displayed in all three paratypes were very similar with only subtle differences from each other. Their colors did vary from the original holotype, lacking the dark brown sides and displaying orange coloration along the dorsal region of the limbs. The dorsal band is much paler in preservation than in the holotype as well. The ventral surfaces were a pure yellow. Similar to the holotype, all three specimens had a dark brown dorsum on the head extending from the snout to occipital and going down to the tail. The juvenile paratypes also had distinct pale stripes bordering the bronze dorsal band (Campbell et al. 2010).
Distribution and Habitat
Life History, Abundance, Activity, and Special Behaviors
Trends and Threats
Possible reasons for amphibian decline
General habitat alteration and loss
Based on Bayesian analysis on 12S mtDNA, B. nussbaumi is part of the subgenera Magnadigita and is sister to the clade composed of B. centenorum, B. cuchumatana, B. helmrichi, B. huehuetenanguensis, and, B. ninadormida (Campbell et al. 2020)
Bolitoglossa nussbaumi is named after herpetologist Ronald Nussbaum, who specializes in caecilians and participated in field work in Guatemala with the authors of this species description (Campbell et al. 2020).
Campbell, J. A., Smith, E. N., Streicher, J., Acevedo, M. E., Brodie, E. D. Jr. (2010). "New salamanders (Caudata: Plethodontidae) from Guatemala, with miscellaneous notes on known species." Miscellaneous Publications Museum of Zoology University of Michigan, 200, 1-66. [link]
IUCN SSC Amphibian Specialist Group. (2020). "Bolitoglossa nussbaumi." The IUCN Red List of Threatened Species 2020: e.T194319A2312109. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T194319A2312109.en. Accessed on 16 May 2022.
Originally submitted by: Gisselle Hernandez, Stephanie Kingham, Emily Patterson (2022-05-18)
Description by: Gisselle Hernandez, Stephanie Kingham, Emily Patterson (updated 2022-05-18)
Distribution by: Gisselle Hernandez, Stephanie Kingham, Emily Patterson (updated 2022-05-18)
Life history by: Gisselle Hernandez, Stephanie Kingham, Emily Patterson (updated 2022-05-18)
Trends and threats by: Gisselle Hernandez, Stephanie Kingham, Emily Patterson (updated 2022-05-18)
Comments by: Gisselle Hernandez, Stephanie Kingham, Emily Patterson (updated 2022-05-18)
Edited by: Ann T. Chang (2022-05-18)
Species Account Citation: AmphibiaWeb 2022 Bolitoglossa nussbaumi <https://amphibiaweb.org/species/7566> University of California, Berkeley, CA, USA. Accessed Jul 7, 2022.
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Citation: AmphibiaWeb. 2022. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 7 Jul 2022.
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