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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

new species of Thamnodynastes Wagler, 1830 from western Amazonia, with notes on morphology for members of the Thamnodynastes pallidus group (Serpentes, Dipsadidae, Tachymenini

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Trevine, Vivian C. [1] ; Caicedo-Portilla, Jose Rances [2] ; Hoogmoed, Marinus [3] ; Thomas, Robert A. [4, 5] ; Franco, Francisco L. [1] ; Montingelli, Giovanna G. [6] ; Osorno-Munoz, Mariela [7] ; Zaher, Hussam [6]
Total Authors: 8
[1] Inst Butantan, Lab Colecoes Zool, Av Vital Brazil 1500, BR-05503900 Sao Paulo, SP - Brazil
[2] Inst Amazon Invest Cient Sinchi, Sede Principal, Ave Vasquez Cobo St 15 & 16, Leticia, Amazonas - Colombia
[3] Museu Paraense Emilio Goeldi, Av Perimetral 1901, BR-66077830 Belem, Para - Brazil
[4] Loyola Univ, Sch Commun & Design, Ctr Environm Commun, POB 199, 6363 St Charles Ave, New Orleans, LA 70118 - USA
[5] Loyola Univ, Dept Biol Sci, POB 199, 6363 St Charles Ave, New Orleans, LA 70118 - USA
[6] Univ Sao Paulo, Museu Zool, Lab Herpetol, Av Nazare 481, BR-04263000 Sao Paulo, SP - Brazil
[7] Inst Amazon Invest Cient Sinchi, Sede Enlace, Calle 20 5-44, Bogota - Colombia
Total Affiliations: 7
Document type: Journal article
Source: Zootaxa; v. 4952, n. 2, p. 235-256, APR 9 2021.
Web of Science Citations: 0

The genus Thamnodynastes is the most diverse within the tribe Tachymenini, with an extensive and complex taxonomic history. The brief descriptions and lack of robust diagnostic characters are the main sources for identification errors and for the difficulty to assess the diversity estimates of the genus. The Thamnodynastes pallidus group was briefly designated to encompass the most arboreal species of the genus, with thinner bodies and longer tails: T. pallidus, T. longicaudus, T. sertanejo, and a fourth undescribed species. After its designation, no other paper addressed this group and its morphological variation, especially for the hemipenis, is still undetermined. After the analysis of all species of Thamnodynastes we were able to corroborate the distinctiveness of the T. pallidus group and to accurately diagnose its fourth species from the western portion of the Amazonia lowlands. The new species is distinguishable from all congeners, except T. sertanejo, by the absence of ventral longitudinal stripes, 17/17/11 dorsal scale rows, and dorsal dark brown blotches on the anterior third of the body. The new species is distinguished from T. sertanejo by the higher number of subcaudals, lower number of ventrals, and smaller body and head sizes. We also provide additional diagnostic features for the Thamnodynastes pallidus group, including new data on hemipenial variation. Finally, we briefly discuss the defensive behavior and morphological characters associated with arboreality in members of the T. pallidus species group. (AU)

FAPESP's process: 11/50206-9 - Origin and evolution of snakes and their diversification in the Neotropics: a multidisciplinary approach
Grantee:Hussam El Dine Zaher
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 15/08318-5 - Diversification of Thamnodynastes hypoconia and Thamnodynastes nattereri species complex within the tribe Tachymenini (Serpentes, Dipsadidae, Xenodontinae)
Grantee:Vivian Carlos Trevine
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 12/13327-5 - Phylogeny of the tribe Tachymenini Bailey, 1967 (Serpentes, Dipsadidae, Xenodontinae)
Grantee:Vivian Carlos Trevine
Support Opportunities: Scholarships in Brazil - Doctorate