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Eutrachelophis bassleri MYERS & MCDOWELL, 2014

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Common Names 
SynonymEutrachelophis bassleri MYERS & MCDOWELL 2014 
DistributionPeru (Loreto), Ecuador

Type locality: Pisqui Hills, [upper] Río Pisqui, Province of Loreto Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
TypesHolotype: AMNH R-52926, an adult male, obtained by Harvey Bassler on January 15, 1927. The type locality is situated west of the Río Ucayali in the region of 8°00– 8°22’ S, 75°30–75°50’ W (see Remarks). This specimen (fig. 1A) is in good condition except that the maxillae and mandibles have been dissected out (possibly by Bassler), although still associated with the specimen. Total length 345 mm, tail length 101 mm; 2 preventrals (gulars wider than long), 133 ventrals + half ventral at anal plate, 67 pairs of subcaudals not counting terminal spine.
PARATYPES (11): ECUADOR: Pastaza Province: mouth Río Pucayacu, between Sarayacu and Montalvo, USNM 232826 (R. Olalla, Aug. 1948); Sarayacu, Río Bobonaza, USNM 232825 (R. Olalla, Nov. 1962). PERU: Huánuco Province: [Río] Pachitea, AMNH R-52682 (H. Bassler, date?); Serranía de Sira, ridge above R ́ıo Llullapichis, 510 m (9°29’ S, 74°49’W), NMW 31795 (M. Henzl and B. Wallnöver, May 20, 1988). Loreto Province: Mishana, TCWC 40555, 41424, 41425 (P. Soini; collected over an eight year period fide Dixon and Soini, 1986: 114); Pampa Hermosa, R ́ıo Cushabatay, AMNH R-55786 (H. Bassler, Sept. 1927);2 Pebas, Río Ampiyacu, 250 ft., AMNH R-25193 (collector?); Río Tapiche, AMNH R-52441 (H. Bassler, Jan. 1928); upper Río Utuquinia, AMNH R-53473 (H. Bassler, Feb. 1928). 
CommentType species: Eutrachelophis bassleri MYERS & MCDOWELL 2014 is the type species of the genus Eutrachelophis MYERS & MCDOWELL 2014. 
EtymologyETYMOLOGY: The intended meaning of the generic name is ‘‘beautiful-necked snake.’’ It is compounded from the prefix eu- (beautiful) + trachelos (neck) + ophis (a serpent), all from the Greek. Gender masculine.

The species is named in memory of Harvey Bassler (1883–1950), a former Research Associate in the American Museum’s Department of Herpetology. Bass- ler accumulated five of the 12 known specimens of this rare species during a decade devoted to petroleum exploration and zoo- 
  • Echevarría, Lourdes Y. and Pablo J. Venegas. 2015. Eutrachelophis bassleri coloration and photographs in life. Herpetological Review 46 (3): 449
  • Myers, Charles W. and Samuel B. McDowell 2014. New Taxa and Cryptic Species of Neotropical Snakes (Xenodontinae), with Commentary on Hemipenes as Generic and Specific Characters. Bulletin of the American Museum of Natural History 385 (1) : 1-112. - get paper here
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