Tzutujil Worm Salamander
Species Description: Brodie ED Jr, Acevedo M, Campbell JA 2012 New salamanders of the genus Oedipina (Caudata: Plethodontidae) from Guatemala. J Herpetology 46: 233-240.
Diagnosis: Oedipina tzutujilorum can be distinguished from other members of the Oedipina subgenus by its costal grooves (20 on each side), intercostal folds (11.5-13.5), snout length (39.9-48.0 mm), postiliac gland placement, longer eye-nostril distance, teeth (8-13 vomerine, 21-31 premaxillary plus maxillary), relatively small hands and feet (1.26 and 1.60 mm, respectively), and basal digital webbing (Brodie et al. 2012).
Coloration in life: Oedipina tzutujilorum has a uniformly black dorsal and flank coloration, without white flecking. Reduced pigmentation is observed in the limbs, top of snout, and eyelids; the venter is dark (Brodie et al. 2012).
Coloration in preservation (alcohol after formalin): The nose tip to the edge of the eye is noticeably pale. Little to no pigment is observed in the upper and lower eyelids around the margin of the eye. It is very dark gray from the top of the head to the frontal region posteriorly on the body and tail. Both the flanks and venter are also dark gray, but the venter is paler than the flanks. The limbs, especially the distal long segments, are very pale. Little to no pigment is observed around the cloacal opening. In preservation, Oedipina tzutujilorum has a darker body and reduced pigmentation in the snout, eyelids, and limbs compared to other Oedipina species (Brodie et al. 2012).
Variation: The snout length of male Oedipina tzutujilorum varies from 39.9-48.0 mm, and a single female is documented with a snout length of 44.6 mm. The tail length varies from 1.25-2.09 times the snout length, with a mean of 1.65 times the snout length. Individuals can have 8-13 vomerine teeth and 21-31 premaxillary plus maxillary teeth; there are 11.5-13.5 intercostal folds between adpressed limbs (Brodie et al. 2012).
Distribution and Habitat
Possible reasons for amphibian decline
General habitat alteration and loss
Brodie, E.D. Jr., Acevedo, M., and Campbell, J.A. (2012). ''New salamanders of the genus Oedipina (Caudata: Plethodontidae) from Guatemala.'' Journal of Herpetology, 46(2), 233-240.
Written by Amanda D. Wong (amandawong1992 AT gmail.com), Museum of Vertebrate Zoology, UC Berkeley
First submitted 2012-08-29
Edited by Michelle Koo (2012-09-07)
Species Account Citation: AmphibiaWeb 2012 Oedipina tzutujilorum: Tzutujil Worm Salamander <http://amphibiaweb.org/species/7862> University of California, Berkeley, CA, USA. Accessed Aug 19, 2017.
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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 19 Aug 2017.
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