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New Records of Psomophis Obtusus (Cope, 1863)

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New Records of Psomophis Obtusus (Cope, 1863) CORE Metadata, citation and similar papers at core.ac.uk Provided by Servicio de Difusión de la Creación Intelectual Cuad. herpetol., 24 (2):(2): 125125–127,–127, 20102010 125 N OTA In Argentina inhabits two species of the genus Psomophis: P. genimaculatus NEW RECORDS OF PSOMOPHIS in Corrientes, Chaco, Formosa and Sal- OBTUSUS (COPE, 1863) ta provinces (Scrocchi and Giraudo, (SERPENTES: DIPSADIDAE) IN 1997; Lions and Alvarez, 1997; Giraudo ARGENTINA AND URUGUAY and Scrocchi, 2002; Nenda, 2007), and P. obtusus in Corrientes, Chaco, Entre Ríos, Formosa, Santa Fe, and northeas- DIEGO O. DI PIETRO tern Buenos Aires provinces (Freiberg, Sección Herpetología, División Zoología Verte- 1939; Yanosky, 1989; Cei, 1993; Myers brados, Facultad de Ciencias Naturales y Museo, and Cadle, 1994; Vuoto, 1995; Scrocchi Universidad Nacional de La Plata. Paseo del and Giraudo, 1997; Giraudo and Scroc- Bosque s/n. CP B1900FWA, La Plata, Argentina. chi, 2002). In Uruguay, P. obtusus is [email protected] widely distributed throughout the terri- tory (Vaz-Ferreira et al., 1970; Myers SANTIAGO J. NENDA and Cadle, 1994; Achaval-Elena, 2001), División Herpetología, Museo Argentino de Cien- although the species was not reported cias Naturales “Bernardino Rivadavia”- CONI- in the departments of Colonia, Río Ne- CET. Ángel Gallardo 470. CP C1405DJR, Ciudad gro, and Salto (Carreira et al., 2005). Autónoma de Buenos Aires, Argentina. Herein we report the southernmost lo- [email protected] cality of the genus Psomophis and a new department record of Psomophis JORGE D. WILLIAMS obtusus in Uruguay. Sección Herpetología, División Zoología Verte- We analyzed 23 specimens of P. ob- brados, Facultad de Ciencias Naturales y Museo, tusus deposited at the Herpetological Universidad Nacional de La Plata. Paseo del Collections of the Museo Argentino de Bosque s/n. CP B1900FWA, La Plata, Argentina. Ciencias Naturales “Bernardino Rivada- [email protected] via” (MACN), Centro Nacional de Inves- tigaciones Iológicas (CENAI, housed at The snake genus Psomophis Myers MACN), and Museo de La Plata (MLP); and Cadle, 1994, currently in the Tribe see Appendix for locality and collection Psomophiini (Zaher et al., 2009) compri- details. ses three species: P. genimaculatus An adult female of Psomophis obtu- (Boettger, 1885), P. joberti (Sauvage, sus (MLP.JW 1799) was collected on No- 1884) and P. obtusus (Cope, 1863). The- vember 2003 by Víctor E. Sansberro in se terrestrial dipsadids inhabit lowlands Partido de Tandil (37º20’ S, 59º07’ W), in South America east of the Andes, Buenos Aires province, Argentina. The between parallels 0º (mouth of Amazon, measures and scutellation characters of Brazil) and 35ºS, Río de la Plata, Uru- specimen MLP.JW 1799 are: 335 mm guay (Myers and Cadle, 1994). Psomo- body length, 101 mm tail length, tail phis obtusus has the southernmost dis- represents 23.16 percent of total length, tribution of the genus, and was previo- pupil of eye round, dorsal scales in 19- usly recorded for southern Brazil, 19-17 rows, 178 ventrals, cloacal plate southern Paraguay, Uruguay and adja- divided, 63 paired subcaudals, one pre- cent northern Argentina (Peters and ocular and two postoculars in each side, Orejas-Miranda, 1970; Lema, 1994; 1+2 temporals, eight supralabials, fourth Myers and Cadle, 1994; Scrocchi and and fifth entering the orbit, one loreal Giraudo, 1997; Achaval-Elena, 2001; Gi- in contact with the second and third raudo and Scrocchi, 2002). supralabials, ten infralabials in the rig- Recibido: 13/10/10 – Revisado: 29/11/10 – Aceptado: 02/12/10 Ed. asoc.: M. Vaira 126 D. DI PIETRO et al.: Psomophis obtusus in Argentina and Uruguay ht side, six of them in contact with ge- pport. To Comisión de Investigaciones neials and nine infralabials in the left Científicas de la provincia de Buenos side, five of them in contact with ge- Aires (CIC). neials. An adult female of P. obtusus (MACN 34477) was collected on 1987 by LITERATURE CITED Guillermo Gnida in Colonia Lavalleja (31º06’ S, 57º01’ W), Salto department, ACHAVAL-ELENA, F. 2001. Actualización Uruguay. The measures and scutella- sistemática y mapas de distribu- tion of specimen MACN 34477 are: 320 ción de los reptiles del Uruguay. mm body length, 106 mm tail length, Smithsonian Herpetological Infor- tail represents 24.88 percent of total mation Service 129: 1-37. length, pupil of eye round, dorsal scales CARREIRA, S., M. MENENGHEL & F. in 19-19-17 rows, 187 ventrals, cloacal ACHAVAL. 2005. Reptiles de Uru- plate divided, 71 paired subcaudals, one guay. Montevideo: DI.R.A.C. Fa- preocular and two postoculars in each cultad de Ciencias, Universidad de side, 1+2 temporals, eight supralabials, la República. 639 pp. fourth and fifth entering the orbit, one CEI, J. M. 1993. Reptiles del noroeste, loreal in contact with the second and nordeste y este de la Argentina. third supralabials, and ten infralabials, Herpetofauna de las selvas sub- six of them in contact with geneials. tropicales, puna y pampas. Mono- The locality of MLP.JW 1799 is si- grafía XIV. Torino: Museo Regio- tuated ca. 320 km south from Partido nale di Scienze Naturali di Tori- de San Fernando, the previous records no. 929 pp. in northeastern Buenos Aires province, FREIBERG, M. A. 1939. Enumeración Argentina (Scrocchi and Giraudo, 1997), sistemática de los reptiles de En- and ca. 460 km southwest from the tre Ríos y lista de los ejemplares southern known locality in Maldonado que los representan en el Museo department, Uruguay (Carreira et al., de Entre Ríos. Memorias del Mu- 2005). This contribution provides infor- seo de Entre Ríos, Zoología 11: 1- mation on the presence of Psomophis 28. obtusus in hilly environments, a habitat GIRAUDO, A. R. & G. J. SCROCCHI. not previously known for the species in 2002. Argentinian snakes: an an- Argentina, and reveals a gap in the dis- notated checklist. Smithsonian tribution of the species between nor- Herpetological Information Service theastern Buenos Aires populations and 132: 1-53. southern ones of Tandil hills. LEMA, T. DE. 1994. Lista comentada dos répteis ocorrentes no Rio Grande do Sul, Brazil. Comunicações do ACKNOWLEDGMENTS Museu de Ciências. Pontifícia Uni- versidade Católica do Rio Grande We are grateful to B. Blotto and M. do Sul (PUCRS), Série Zoologia 7: Pereyra from the División de Herpeto- 41-150. logía MACN for his friendship and colla- LIONS, M. L. & B. B. ALVAREZ. 1997. boration, to P. Cacivio, R. Cajade, and Psomophis genimaculatus. Geogra- D. Barrasso for bringing us valuable phic distribution. Herpetological specimens from Chaco. To V. Sansberro Review 28 (1): 214 for additional information about the co- MYERS, C. W. & J. E. CADLE. 1994. A llected specimen. We are also grateful new genus for South American to J. Faivovich from the División de snakes related to Rhadinaea obtu- Herpetología MACN for laboratory su- sa Cope (Colubridae) and resurrec- Cuad. herpetol., 24 (2): 125–127, 2010 127 tion of Taeniophallus Cope for the South American Xenodontines a “Rhadinaea” brevirostris group. revised classification and descrip- American Museum Novitates tions of new taxa. Papéis Avulsos (3102): 1-33. de Zoologia 49 (11): 115-153. NENDA, S. J. 2007. Psomophis genima- culatus (Boettger, 1885) (Serpen- tes: Colubridae). Cuadernos de APPENDIX Herpetología 21 (1): 65. PETERS, J. A. & B. R. OREJAS-MIRAN- Examined specimens of Psomophis DA. 1970. Catalogue of Neotropi- obtusus: Argentina: Buenos Aires: cal Squamata. Part I. Snakes. MACN 2674, Bancalari, XI/1956; MACN Washington D.C.: Bulletin of U.S. 10255, San Fernando, II/1950; MACN Natural Museum. 347 pp. 33550, Capilla del Señor, 1982; MLP.JW SCROCCHI, G. J. & A. R. GIRAUDO. 1799, Tandil, XI/2003. Corrientes: MACN 1997. El género Psomophis (Ser- 13980, Concepción, Rincón de Luna, XI/ pentes: Colubridae) en la Argenti- 1961; MACN 37772, Ituzaingó, Ruta Nac. na. Cuadernos de Herpetología 11 Nº 12 km 1114, 17/XII/2001; MACN (1-2): 63-68. 39798, 25 km S from Mercedes, Ea. El VAZ-FERREYRA, R.; L. COVELO DE ZOLES- Remanso, 13/XI/1999; CENAI 1721, Mon- SI & F. ACHAVAL. 1970. Oviposición te Caseros, 19/XI/1964; MLP.R 5455, Co- y desarrollo de ofidios y lacertilios lonia Carlos Pellegrini, Ea. Iberá, 19/XI/ en hormigueros de Acromyrmex. 2009. Chaco: MLP.R 5445, Libertador Physis 29 (79): 431-459. General San Martín, Selvas del Río de VUOTO, J. A. 1995. Nueva enumeración Oro, 19/XI/2008. Entre Ríos: CENAI de los ofidios (Reptilia: Serpentes) 2500, Federal, El Cimarrón, 31/I/1968; de Entre Ríos, Argentina. Memo- CENAI 2056, La Paz, Alcaraz, 2/XI/1966; rias del Museo de Entre Ríos, Se- MACN 34210, MACN 34211, Perdices, 29/ rie Nueva Zoología 5: 1-18. XI/1986; MLP.R 5456, La Paz, Ruta Prov. YANOSKY, A. A. 1989. La ofidiofauna de Nº 6, 10,6 km NE from Colonia Avigdor, la reserva ecológica El Bagual, 1/XI/2009; MLP.R 5457, La Paz, Ruta Formosa: abundancia, utilización Prov. Nº 6, 7,5 km E from Colonia de los hábitats y estado de situa- Avigdor, 7/XI/2008; MLP.R 5502, La Paz, ción. Cuadernos de Herpetología 4 Ruta Prov. Nº 6, 1,3 km W from Yeso, 1/ (3): 11-14. XI/2009. Santa Fe: MACN 33549, Garay, ZAHER, H.; F. GOBBI-GRAZZIOTIN; J. E. 10 km W from Saladero Cabal, 24/II/ CADLE; R. W. MURPHY; J. C. DE 1970; MACN 37404, Vera, 1951. Uru- MOURA-LEITE & S. L. BONATTO. guay: MACN 1109, MACN 1110, Rocha, 2009. Molecular phylogeny of ad- Castillos, 1899; MACN 34477, Salto, Co- vanced snakes (Serpentes, Caeno- lonia Lavalleja, 1987; CENAI 3071, Du- phidia) with an emphasis on razno, 1971..
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