Eurycea cirrigera (Southern two-lined salamander). Paedomorphosis. McEntire, K., Pierson, T. W, & Maerz, J. C Herpetological Review, 45(3):473–473, 2014. abstract bibtex On 19 January 2014, we discovered what appeared to be a large (SVL = 38 mm; total length = 75 mm), but typically marked, E. cirrigera larva in a small, impounded stream in Athens, Clarke Co., Georgia, USA (33.8909°N, 83.3624°W; datum: WGS84). However, the larva was visibly gravid; developing ova could be seen through her transparent ventral skin. The salamander was euthanized and dissected and found to have 27 distinct ova in her right oviduct and 24 ova in her left oviduct. This falls within the typical clutch size of the species (Petranka 1998. Salamanders of the United States and Canada. Smithsonian Institution Press, Washington, DC. 587 pp.). Tissues from the female and her eggs were preserved in 95% EtOH, and deposited as GMNH 50696. To the best of our knowledge, the only other report of neoteny in E. cirrigera was from Mount (1975. The Amphibians and Reptiles of Alabama. University of Alabama Press. 268 pp.), who described it as “not uncommon” in Alabama. Rose and Bush (1963. Tulane Stud. Zool. 10:121–128) describe several male and female E. aquatica with well-developed testes and ova, but report that all had typical adult coloration and classify their status as representative of “precocious reproductive development and not true neoteny”. No other published accounts of neoteny in the Eurycea bislineata complex exist. We revisited the site of collection and nearby streams on 26 January 2014 and collected 53 E. cirrigera larvae, but all were smaller than the gravid female and none had visible developing ova. Metamorphosed adult female E. cirrigera were gravid during this time. Additionally, we examined 74 E. cirrigera larvae of at least 30 mm SVL in the GMNH collection, and none of them appeared to be gravid females.
@article{mcentire_eurycea_2014,
title = {Eurycea cirrigera ({Southern} two-lined salamander). {Paedomorphosis}},
volume = {45},
copyright = {All rights reserved},
abstract = {On 19 January 2014, we discovered what appeared to be a large (SVL = 38 mm; total length = 75 mm), but typically marked, E. cirrigera larva in a small, impounded stream in Athens, Clarke Co., Georgia, USA (33.8909°N, 83.3624°W; datum: WGS84). However, the larva was visibly gravid; developing ova could be seen through her transparent ventral skin. The salamander was euthanized and dissected and found to have 27 distinct ova in her right oviduct and 24 ova in her left oviduct. This falls within the typical clutch size of the species (Petranka 1998. Salamanders of the United States and Canada. Smithsonian Institution Press, Washington, DC. 587 pp.). Tissues from the female and her eggs were preserved in 95\% EtOH, and deposited as GMNH 50696. To the best of our knowledge, the only other report of neoteny in E. cirrigera was from Mount (1975. The Amphibians and Reptiles of Alabama. University of Alabama Press. 268 pp.), who described it as “not uncommon” in Alabama. Rose and Bush (1963. Tulane Stud. Zool. 10:121–128) describe several male and female E. aquatica with well-developed testes and ova, but report that all had typical adult coloration and classify their status as representative of “precocious reproductive development and not true neoteny”. No other published accounts of neoteny in the Eurycea bislineata complex exist. We revisited the site of collection and nearby streams on 26 January 2014 and collected 53 E. cirrigera larvae, but all were smaller than the gravid female and none had visible developing ova. Metamorphosed adult female E. cirrigera were gravid during this time. Additionally, we examined 74 E. cirrigera larvae of at least 30 mm SVL in the GMNH collection, and none of them appeared to be gravid females.},
number = {3},
journal = {Herpetological Review},
author = {McEntire, Kira D and Pierson, Todd W and Maerz, John C},
year = {2014},
pages = {473--473},
}
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Smithsonian Institution Press, Washington, DC. 587 pp.). Tissues from the female and her eggs were preserved in 95% EtOH, and deposited as GMNH 50696. To the best of our knowledge, the only other report of neoteny in E. cirrigera was from Mount (1975. The Amphibians and Reptiles of Alabama. University of Alabama Press. 268 pp.), who described it as “not uncommon” in Alabama. Rose and Bush (1963. Tulane Stud. Zool. 10:121–128) describe several male and female E. aquatica with well-developed testes and ova, but report that all had typical adult coloration and classify their status as representative of “precocious reproductive development and not true neoteny”. No other published accounts of neoteny in the Eurycea bislineata complex exist. We revisited the site of collection and nearby streams on 26 January 2014 and collected 53 E. cirrigera larvae, but all were smaller than the gravid female and none had visible developing ova. Metamorphosed adult female E. cirrigera were gravid during this time. Additionally, we examined 74 E. cirrigera larvae of at least 30 mm SVL in the GMNH collection, and none of them appeared to be gravid females.","number":"3","journal":"Herpetological Review","author":[{"propositions":[],"lastnames":["McEntire"],"firstnames":["Kira D"],"suffixes":[]},{"propositions":[],"lastnames":["Pierson"],"firstnames":["Todd","W"],"suffixes":[]},{"propositions":[],"lastnames":["Maerz"],"firstnames":["John","C"],"suffixes":[]}],"year":"2014","pages":"473–473","bibtex":"@article{mcentire_eurycea_2014,\n\ttitle = {Eurycea cirrigera ({Southern} two-lined salamander). {Paedomorphosis}},\n\tvolume = {45},\n\tcopyright = {All rights reserved},\n\tabstract = {On 19 January 2014, we discovered what appeared to be a large (SVL = 38 mm; total length = 75 mm), but typically marked, E. cirrigera larva in a small, impounded stream in Athens, Clarke Co., Georgia, USA (33.8909°N, 83.3624°W; datum: WGS84). However, the larva was visibly gravid; developing ova could be seen through her transparent ventral skin. The salamander was euthanized and dissected and found to have 27 distinct ova in her right oviduct and 24 ova in her left oviduct. This falls within the typical clutch size of the species (Petranka 1998. Salamanders of the United States and Canada. Smithsonian Institution Press, Washington, DC. 587 pp.). Tissues from the female and her eggs were preserved in 95\\% EtOH, and deposited as GMNH 50696. To the best of our knowledge, the only other report of neoteny in E. cirrigera was from Mount (1975. The Amphibians and Reptiles of Alabama. University of Alabama Press. 268 pp.), who described it as “not uncommon” in Alabama. Rose and Bush (1963. Tulane Stud. Zool. 10:121–128) describe several male and female E. aquatica with well-developed testes and ova, but report that all had typical adult coloration and classify their status as representative of “precocious reproductive development and not true neoteny”. No other published accounts of neoteny in the Eurycea bislineata complex exist. We revisited the site of collection and nearby streams on 26 January 2014 and collected 53 E. cirrigera larvae, but all were smaller than the gravid female and none had visible developing ova. Metamorphosed adult female E. cirrigera were gravid during this time. Additionally, we examined 74 E. cirrigera larvae of at least 30 mm SVL in the GMNH collection, and none of them appeared to be gravid females.},\n\tnumber = {3},\n\tjournal = {Herpetological Review},\n\tauthor = {McEntire, Kira D and Pierson, Todd W and Maerz, John C},\n\tyear = {2014},\n\tpages = {473--473},\n}\n\n\n\n","author_short":["McEntire, K.","Pierson, T. W","Maerz, J. 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