F. C. Poli

F. J. M. Santos

Vaz-Silva, W.

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       34 Check List 2(1) ISSN: 1809-127X  NOTES ON GEOGRAPHIC DISTRIBUTION Amphibia,  Scinax  constrictus:  distribution extension  Wilian Vaz-Silva1, 2, 3 Flávio Cardoso Poli3 Fidélis Junio Marra Santos3  1Ambiental – Instituto de Pesquisa e Consultoria Ltda.  Av. República  do  Líbano, 370,  sl. 33. St. Oeste.  Goiânia,  Goiás,  Brasil.  E-mail: wvaz@ambientalnet.com.br  2Universidade  Federal  de  Goiás,  Instituto  de Ciências  Biológicas.  Laboratório  de Comportamento Animal. Cx. Postal 131. Goiânia, Goiás, Brasil.   3Universidade  Católica  de  Goiás.  Departamento de  Biologia.  Av.  Universitária,    1440.  Goiânia, Goiás, Brasil.  Scinax constrictus was described by Lima et al. (2004) and it was considered by these authors the only  one  species  in  the  Scinax  rostratus  group (proposed by Faivovich et al., 2005) to occur in the  Cerrado  biome.  Vitt  et  al.  (2005)  recorded Scinax  rostratus  (Peters,  1870)  for  the  Jalapão region, northern Tocantins state. Previous records of  S.  constrictus  comprised  the  following municipalities in the state of Goiás, central Brazil: Palmeiras  (type  locality),  Guapó,  Jussara, Mossâmedes,  Pirenópolis,  Pontalina,  Porangatu, and Uirapuru (Lima et al., 2004).  During recent survey in the municipality of Porto Alegre do Tocantins, southeastern Tocantins state, Brazil, in areas influenced by the reservoir of the Manuel  Alves  river,  we  collected  specimens  of Scinax  that  were  morphologically  similar  to species  described  by  Lima  et  al.  (2004).  The analysis of S. constrictus individuals deposited in the  collection  of  the  Universidade  Federal  de Goiás  (ZUFG),  and  of  the  advertisement  call revealed the new record for the species. Voucher specimens  are  deposited  in  the  Coleção  de Zoologia  da  Universidade  Federal  de  Goiás (ZUFG  2887-2889)  (permit  # 15/NUFAU/IBAMA/TO).  Scinax constrictus (Figure 1) was collected in the municipality  of  Porto  Alegre  do  Tocantins (11°35'22"  S  47°00'26"  W,  413m),  Tocantins state, on 14 December 2005, by W. Vaz-Silva, F. C.  Poli,  and  F.  J.  M.  Santos,  representing  the northernmost locality for the species, extending its range  ca.  300km  NE  from  previous  reported localities (Lima et al., 2004), and the first record for Tocantins state. The advertisement call of the collected specimens was similar to that described by  Lima  et  al.  (2004):  average  call  duration 206.90 ± 25.49 ms (range = 181 – 261 ms; n = 12 calls of three males); 10.90 ± 1.04 notes per call (range = 10 – 13 notes, n = 12 calls); average note duration 10.32 ± 2.94 ms (range = 3 – 17 ms, n = 127 notes); average interval between notes 7.05 ± 2.03  ms  (range  =  2  –  13  ms,  n  =  117  notes); average  number  of  pulses  per  note  4.93  ±  1.04 pulses  (range  =  3  –  9  pulses,  n  =  124  notes); average dominant frequency 3577.27 ± 160.41 Hz (range = 3259 – 3763 Hz, n = 12 calls of three males). Some aspects of the natural history of this population also coincided with data presented by Lima et al. (2004). Males of S. constrictus were captured  during  calling  activity,  on  marginal shrubs in a permanent pond (ca. 50cm above the floor, with their heads down).    Figure  1.  Scinax  constrictus  from  the municipality  of  Porto  Alegre  do  Tocantins, southeastern Tocantins state, Brazil (photo by P. V. C. Mathias).  Acknowledgements  This  manuscript  was  improved  by  comments made  by  Rogério  P.  Bastos  and  Cynthia  P.  A. Prado.  We  thank  the  Feindt  -  Consultoria Ambiental  and  Biota  -  Projetos  e  Consultoria Ambiental  for  the  logistic  support;  Pablo  V.  C. Mathias, Caio S. A. Pereira, Lorenzo C. A. Faria,        35 Check List 2(1) ISSN: 1809-127X  NOTES ON GEOGRAPHIC DISTRIBUTION and  Ricardo  C.  Assis  for  assistance  with fieldwork; Rogério P. Bastos for identifying the specimens and Lorena D. Guimarães for the help with  the  Coleção  Zoológica  da  Universidade Federal de Goiás.  Literature cited Faivovich, J., C. F. B. Haddad, P. C. A. Garcia, D. R. Frost, J. A. Campbell, and W. C. Weeler. 2005. Systematic review of the frog family Hylidae,  with  special  reference  to  Hylinae: phylogenetic  analysis  and  taxonomic revision. Bulletin of the American Museum of Natural History 294: 1-240  Lima,  L.  P.,  R.  P.  Bastos,  and  A.  A.  Giaretta. 2004. A new Scinax Wagler, 1830 of the S. rostratus  group  from  Central  Brazil (Amphibia,  Anura,  Hylidae).  Arquivos  do Museu Nacional, Rio de Janeiro, 62 (4): 505-512. Vitt,  L.  J.,  J.  P.  Caldwell,  G.  R.  Colli,  A.  A. Garda, D. O. Mesquita, F. G. R. França, D. B.  Shepard,  G.  C.  Costa,  M.  M. Vasconcellos,  and  V.  N.  Silva.  2005.  Uma Atualização do Guia Fotográfico dos Répteis e Anfíbios da Região do Jalapão no Cerrado Brasileiro.  Special  Publications  in Herpetology Sam Noble Oklahoma Museum of Natural History 2: 1-24.   Received February 2006 Accepted March 2006 Published March 2006  

Amphibia, <i>Scinax constrictus</i>: Distribution extension

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