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Thamnodynastes longicaudus FRANCO, FERREIRA, MARQUES & SAZIMA, 2003

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Common Names 
SynonymThamnodynastes longicaudus FRANCO, FERREIRA, MARQUES & SAZIMA 2003
Thamnodynastes longicaudus — WALLACH et al. 2014: 718 
DistributionSE Brazil (São Paulo)

Type locality: BRAZIL, São Paulo, São Lourenço da Serra, 23°51’S–46°56’W, 690 m elevation.  
TypesHolotype: IB (= IBSP) 59545, (male, 370 mm SVL, 204 mm TAL), 22 Dez. 1998, M. D. Galante. Paratypes: IB 18676, (male, 289 mm SVL, 147 mm TAL), BRAZIL, São Paulo, Salesópolis, Estação Biológica de Boracéia (23°38’S–45°52’W, 900 m a.s.l.), 09 Jan. 1960, Medeiros; IB 20694, (male, 300 mm SVL, 155 mm TAL), BRAZIL, São Paulo, Itapecerica da Serra (23°43’S–46°50’W, 906 m a.s.l.), 04 Aug. 1961, C. Zanuzzi; IB 26561, (male, 144 mm SVL, 75 mm TAL), BRAZIL, São Paulo, Juquitiba (23°55’S– 47°04’W, 685 m a.s.l.), 13 Sept. 1966, X. Langlada; IB 31890, (male, 334 mm SVL, 174 mm TAL), BRAZIL, São Paulo, Areias (22°34’S–44°41’W, 520 m a.s.l.), 11 Jan. 1971; collector unknown; IB 33702, (male, 351 mm SVL, 195 mm TAL), BRAZIL, São Paulo, Juquitiba (23°55’S–47°04’W, 685 m a.s.l.), 15 Jan. 1973, P. R. Lang; IB 33706, (male, 325 mm SVL, 182 mm TAL), BRAZIL, São Paulo, Guapiara (24°11’S–48°31’W, 750 m a.s.l.), 24 Jan. 1973, collector unknown; IB 41045, (male, 411 mm SVL, 219 mm TAL), BRA- ZIL, Rio de Janeiro, Teresópolis (22°24’S–42°57’W, 872 m), 29 Oct. 1976, R. W. Waltemath. 
DiagnosisDiagnosis: slender body; very long tail (about 50% of body length); 19 scale rows in the mid-body; high subcaudal scale count (101–109); and a series of 5–6 black blotches in the fore-body, shown during defensive displays. The new species is known from moderate elevations of the Serra do Mar range and its features indicate that it is one of the most arboreal species within the genus (from FRANCO et al. 2003). 
EtymologyThe specific name is an adjective derived from the Latin words longus and caudus, alluding to the very long tail of the new species. 
  • Franco, F.L.; Ferreira, T.G.; Marques, O.A.V. & Sazima, I. 2003. A new species of hood-displaying Thamnodynastes (Serpentes: Colubridae) from the Atlantic forest in southeast Brazil. Zootaxa 334: 1–7 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
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