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DUMÉRIL, 1854) and Taxonomic Remarks on the Genus in Ecuador

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DUMÉRIL, 1854) and Taxonomic Remarks on the Genus in Ecuador ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Herpetozoa Jahr/Year: 2007 Band/Volume: 20_1_2 Autor(en)/Author(s): Valencia Jorge H., Garzon T. Katty, Betancourt-Yepez Raquel M. Artikel/Article: First record of the snake Dendrophidion bivittatus (Dumeril, Bibron & Dumeril, 1854) and taxonomic remarks on the Genus in Ecuador 86- 88 ©Österreichische Gesellschaft für Herpetologie e.V., Wien, Austria, download unter www.biologiezentrum.at 86 SHORT NOTE HERPETOZOA 20 (1/2) Wien, 30. Juli 2007 SHORT NOTE Kitaplar Serisi, Bornova-izmir; 81:1-IX, 1-218. BODEN- First record of the snake Dendro- HEIMER, F. S. (1944): Introduction into the knowledge of the Amphibia and Reptilia of Turkey.- Rev. Fac. Sci. phidion bivittatus (DUMÉRIL, BIBRON Univ., Istanbul; (B) 9: 1-78. DAREVSKY, I. S. (1970): DUMÉRIL, Systematic status of Rhynchocalamus melanocephalus & 1854) and taxonomic satunini NIK. (Serpentes, Colubridae) previously remarks on the Genus in Ecuador included in the genus Oligodon- Zool. Zhurnal, Moskva; 49: 1685-1690. DOWLING, H. G (1951): A proposed standard of counting ventrals in snakes.- The Genus Dendrophidion FITZINGER, British J. Herpetol., London; 1: 97-99. EISELT, J. 1843 includes fast moving snakes of medi- (1970): Ergebnisse zoologischer Sammelreisen in der Türkei: Bemerkenswerte Funde von Reptilien, II.-Ann. um size and diurnal activity. At present, this Naturhist. Mus., Wien; 80: 803-814. ENGELMANN, W. genus is constituted by eight species distrib- E. & FRITSCHE, J. & GÜNTHER, R. & OBST, F. J. (1993): uted from Mexico over Middle America to Lurche und Kriechtiere Europas. Radebeul, Germany northern South America (PETERS & OREJAS- (Neumann), 440 pp. FRANZEN, M. & BISCHOFF, W. MIRANDA 1986; LIEB 1988; PÉREZ-SANTOS & (1995): Erstnachweis von Rhynchocalamus melano- cephalus melanocephalus für die Türkei.- Salamandra, MORENO 1991). From Ecuador, four species Rheinbach; 31 (2): 107-122. GASPERETTI, J. (1988): are reported, namely D. brunneus (GÜN- Snakes of Arabia.- Fauna of Saudia Arabia, Berne, THER, 1858), D. nuchalis (PETERS, 1864) and Riyad; 9: 169-450. JAN, G. (1862): Enumerazione sis- (COPE, tematica degli ofidi apparenti al gruppo Coronellidae.- D. percarinatus 1863), in the west- Arch. Zool. Anat. Fisiol., Genova; 2 (2): 213-330. ern slopes, and D. dendrophis (SCHLEGEL, LATIFI, M. (1991): The snakes of Iran. Oxford (Society 1837) in the eastern slopes of the Andes for the Study of Amphibians and Reptiles - SSAR), (ALMENDÂRIZ 1991; PÉREZ-SANTOS & MO- 159 pp. LEVITON, A. E. & ANDERSON, S. C. & ADLER, RENO COLOMA K. & MINTON, S. A. (1992): Handbook to Middle East 1991; et al. 2000). This in- amphibians and reptiles. Oxford (Society for the Study vestigation presents the first record of the of Amphibians and Reptiles - SSAR) [Contribution to species D. bivittatus (DUMÉRIL, BIBRON & Herpetology No. 8], 252 pp. OLGUN, K. & Ava, A. & DUMÉRIL, 1854) in Ecuador with a detailed ILGAZ, Ç. & ÜZÜM, N. & YILMAZ, C. (2007). A new species of Rhynchocalamus (Reptilia: Serpentes: description of the specimen. Colubridae) from Turkey.- Zootaxa, Auckland, New All the measurements of the individ- Zealand; 1399: 57-68. REED, C. & MARX, H. (1959): A ual collected were done using a metallic herpetological collection from northeastern Iraq.- Transact. Kansas Acad. Sci., Lawrence; 62: 91-122. rule. Comparisons with other species were SCHMIDT, K. P. (1933): A new snake {Rhynchocalamus based on direct observation and information arabicus) from Arabia.- Zoological Series of the Field in PETERS & OREJAS-MIRANDA (1986) and Museum of Natural History, Chicago; 20: 9-10. WER- PÉREZ-SANTOS & MORENO (1989b). All NER, F. (1906): Einige für Kleinasien neue Reptilien.- Zool. Anzeiger, Leipzig; 29: 411-413. WERNER, F. material here reported is deposited at the (1917): Reptilien aus Persien (Provinz Fars). Gesam- Fundación Herpetológica Gustavo Orcés melt von Prof. ANDREAS.- Verhandlungen Zool.-Bot. (FHGO). Ges., Wien; 67: 191-220. WERNER, Y. L. (1988): Her- Dendrophidion bivittatus (DUMÉRIL, petofaunal survey of Israel (1950-1985), with com- ments on Sinai and Jordan and on zoogeographical het- BIBRON & DUMÉRIL, 1854) previously has erogeneity; pp. 355-388. In: YOM-TOV, Y. & TCHERNOV, been reported in highlands of Colombia and E. (eds.): The zoogeography of Israel. Dordrecht, the Darién, Panama (PETERS & OREJAS- Netherlands. (W. Junk Pubi), ISBN 90-6193-650-0. MIRANDA 1986; PÉREZ-SANTOS & MORENO KEY WORDS: Reptilia: Squamata: Ophidia: 1989a). In Ecuador, the checklists of rep- Colubridae: Rhynchocalamus melanocephalus satu- tiles of PETERS (1960) and MIYATA (1982) nini, morphology, pholidosis, distribution, Türkiye include D. bivittatus without certain evi- SUBMITTED: January 4, 2007 dence of specimens. Later, the taxonomic AUTHORS: Res. Ass. Aziz Avci, Adnan Men- review by LIEB (1988), excludes this snake deres University, Faculty of Science and Arts, Depart- ment of Biology, Aydin, Turkey < [email protected] >; as did all other checklists published up to Çetin ILGAZ, PhD., Dokuz Eylül University, Fauna and date (MIYATA 1982; PETERS & OREJAS- Flora Research and Application Center, Buca-Izmir, MIRANDA 1986; PÉREZ-SANTOS & MORENO Turkey < [email protected] >; Prof. Yusuf KUMLU- 1989a; ALMENDÂRIZ 1991; COLOMA et al. TAS, PhD., Dokuz Eylül University, Faculty of Education, Department of Biology, Buca-Izmir, Turkey < yusuf. 2000). Herein, we report on an individual [email protected] >; Prof. Kurtulus, OLGUN, PhD., (FHGO 5461) collected in the zone of Intag, Adnan Menderes University, Faculty of Science and Arts, parish Selva Alegre, canton Otavalo, Pro- Department of Biology, Aydin, Turkey < kolgun@ vince of Imbabura (00°16'01" N, 78°35' adu.edu.tr >; Prof. Ibrahim BARAN, PhD. Dokuz Eylül University, Faculty of Education, Department of Biology, 24" W, ca. 1700 m a.s.l., Fig. 1), on March Buca-Yzmir-Türkiye < baran 1940@ yahoo.com > 16, 2006, at about 12:00. The site was a ©Österreichische Gesellschaft für Herpetologie e.V., Wien, Austria, download unter www.biologiezentrum.at SHORT NOTE HERPETOZOA 20 (1/2) Wien, 30. Juli 2007 SHORT NOTE 87 Fig. 2: Dendrophidion hivinatus (i)v MI KIL, BIBRON & DUMÉRIL, 1854) (FHGO 5461) from Ecuador. Fig. 1: Record locality (•) of Dendrophidion bivittatus (DUMÉRIL, BlBRON & DUMÉRIL, 1854) (FHGO 5461) at 00°16'01" N, 78°35'24" W, ca. 1700 m a.s.l. in the zone of Intag, parish Selva Alegre, canton merging of these bars is prevented by a stripe Otavalo, Province of Imbabura, Ecuador. that becomes more evident in the second quarter of the body and extends towards the tail; in the last quarter of body, there are two remnant of secondary vegetation, where the parallel dark stripes - each 1 scale wide - snake was moving across leaf litter of the which finally fuse in the tail. The head and forest floor. The zone of Intag is located on the nuchal region are of greenish color, the the edge of the Reserva Ecològica Cota- neck laterally bearing yellowish spots alter- cachi-Cayapas, in the Cordillera Toisân, nating with dark brown spots. As the series of Bioregion of Chocó, recognized throughout yellow spots extends backwards their color the world by its important biological value changes to the yellowish brown of the ground (BIODIVERSITY SUPPORT PROGRAM et al. color. The supralabials and ventrals including 1995). The Reserve which is constituted by all scales of the mental region are of cream Montane and High Montane Evergreen color. Forest (SIERRA et al. 1999) is on top of the Coloration in preservative: Dorsum list of threatened ecosystems. and head brown with numerous transverse Diagnosis: A snake of small size bands of darker brown, vertebral and para- (snout-vent length 22.1 cm) and relatively vertebral stripes evident in the last quarter long tail (tail length 10.7 cm; 32% of the of body. In the nuchal region brown trans- total length of the snake); head prolonged, versal bars alternate with bluish striping. clearly differenciated from the body, tip of Venter greyish except chin region and supra- mouth rounded, eyes prominent, pupil black labial scales which are cream. and round, bordered by tan reddish color. Similar species: Dendrophidion bivit- Internasals wider than long and smaller than tatus differs from D. dendrophis both in parietals; loreal wider than long, preoculars color-pattern, consisting of dun greyish 2/2; postoculars 2/2; temporals 2+2; supral- cross bars separated from each other by abials 9/9, fourth, fifth and sixth in contact more than 1 (2 - 3) scale rows and a higher with the orbit; infralabials 9/9, nasal divid- number (> 175) of ventral scales; moreover ed. Dorsal scales 17+17+15, slightly keeled, it is distributed in the lowlands of the Ecua- with two apical pits, ventrals 161, anal scale dorian Amazonia. Dendrophidion nuchale divided, subcaudals 129. is different from D. bivittatus by its black or Color in life (Fig. 2): Dorsum ground dark nuchal band, the color of its tail which color yellowish brown with numerous is brighter than the rest of the body and the oblique dark brown bars, separated from presence of numerous circular spots towards each other by 1 to 2 scales paralleling the dor- the posterior part of the body. In D. percari- sal scale rows. In the vertebral region, the natus the transversal bands can be irregular ©Österreichische Gesellschaft für Herpetologie e.V., Wien, Austria, download unter www.biologiezentrum.at SHORT NOTE HERPETOZOA 20 (1/2) Wien, 30. Juli 2007 SHORT NOTE and often are bordered by another row of Program, Washington D. C. USA. COLOMA, L. A. & scales of blackish color, lateral lines are not QUIGUANGO-UBILLLJS, A. & RON, S. (2000): Reptiles del Ecuador: lista de especies y distribución. Croco- evident. Dendrophidion bivittatus can be dylia, serpentes, y testudines. Version 1.1. 25 Mayo confused with snakes of the Genus Liophis 2000. Museo de Zoologia, Pontificia Universidad WAGLER, 1830, in peculiar those of the epi- Católica del Ecuador, Quito. < http://www.puce.edu.ee/ nephelus group, which also possess longitu- Zoologia/repecua.htm > (WWW document, last ac- cessed 26 November 2006).
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