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Parafimbrios vietnamensis ZIEGLER, NGO, PHAM, NGUYEN, LE & NGUYEN, 2018

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Higher TaxaXenodermidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymParafimbrios vietnamensis ZIEGLER, NGO, PHAM, NGUYEN, LE & NGUYEN 2018 
DistributionNW Vietnam (Lai Chau)

Type locality: near Hoang Ho Village, Phang So Lin Commune, Sin Ho District, Lai Chau Province (22022.180’N, 103014.485’E), at an elevation of 1,317 m above sea level.  
Reproductionoviparous (manual imputation, fide Zimin et al. 2022) 
TypesHolotype. IEBR A.2018.7 (field number LC2016.8), male, collected by H.V. Tu and H.N. Ngo on 2nd June 2016. 
DiagnosisDiagnosis: A species of the genus Parafimbrios, characterized by a combination of the following characters: 1) rostral laterally with two raised, curved edges; the upper one, together with a horizontal curved ridge of tissue, separate the rostral from the internasals; 2) nasal in contact zone with rostral with curved raised edge; 3) nasal in contact zone with supralabials each with two small oblique, curved raised edges located above first and second as well as above second and third supralabials; 4) suture between the internasals much longer than that between the prefrontals; 5) supralabials 8, with the first four bearing raised edges; 6) infralabials 7; mental and anterior three to four infralabials with raised edges; 7) temporals 4+4–5; 8) 35–33–29 dorsal scale rows; 9) laterally rounded ventrals 164; 10) unpaired subcaudals 49; 11) total length of at least 266 mm in males (with a tail length of 44 mm, and a TaL/TL ratio of 0.165). 
CommentHabitat: disturbed limestone karst forest and fragmented with hill agricultural fields.

Photo on cover of Russ. J. Herp. Sep 2020. 
EtymologyAnalogous to the naming of the recent Parafimbrios discovery from Laos (P. lao) we name the new species from Vietnam after the country of origin. 
  • ZIEGLER, THOMAS; HAI NGOC NGO, ANH VAN PHAM, THAM THI NGUYEN, MINH DUC LE, TRUONG QUANG NGUYEN 2018. A new species of Parafimbrios from northern Vietnam (Squamata: Xenodermatidae). Zootaxa 4527 (2): 269-276 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
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