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Teleostei: Cyprinidae) 1 Ichthyological Exploration of Freshwaters/IEF-1143/pp. 1-18 Published 22 September 2020 LSID: http://zoobank.org/urn:lsid:zoobank.org:pub:6635A59D-1098-46F6-817D-87817AD2AF0F DOI: http://doi.org/10.23788/IEF-1143 Devario pullatus and D. subviridis, two new species of minnows from Laos (Teleostei: Cyprinidae) Maurice Kottelat Devario pullatus, new species, is described from the Nam Ngiep watershed, Mekong drainage. It is distinguished from all other species of the genus by its unique colour pattern in adults, consisting only in a dark brown stripe P from gill opening to end of caudal peduncle, widest on middle of flank, narrowest at beginning of caudal peduncle, widening again until caudal-fin base. Devario subviridis, new species, is described from the edge of Nakai Plateau, in Xe Bangfai watershed, Mekong drainage. It is distinguished from all other species of the genus by its unique colour pattern in adults, consisting in a dark brown stripe P from gill opening to end of caudal peduncle, contin- ued on median caudal-fin rays, wider and less contrasted in anterior part of flank, and, within it an irregular row of short, narrow, vermiculated yellowish lines. Devario cf. quangbinhensis is reported from Laos for the first time. Introduction Material and methods Cyprinid fishes of the genus Devario typically oc- Measurements and counts follow Kottelat (2001) cur in moderate to swift flowing water of small and Kottelat & Freyhof (2007). The last 2 branched streams with clear and cool water. The genus is dorsal and anal-fin rays articulating on a single 1 known throughout South and mainland Southeast pterygiophore are noted as “1 /2”. Lateral-line Asia. The genus includes about 38 named species scale counts are given as scales on body + scales (Conway et al., 2009; Fang, 1997a-b, 2003; Fang on caudal-fin base. In some species, the lateral & Kottelat, 1999; Kottelat, 2000, 2001, 2013, 2020; line starts with a tubed scale followed by a few Fang & Kullander, 2009; Kullander, 2017; Kul- unpored scales in the steep anterior part until lander & Fang, 2009; Kullander & Norén, 2016; behind pectoral-fin base, from where scales are Ramananda & Vishwanath, 2014) and has its pored again; the unpored scales are included in greatest diversity in Myanmar, northern Thailand the count (scales are not regularly organised in the and Laos. A number of unnamed species are steep part, leading to possible inaccuracy of 1 or known and await description. The purpose of 2 unpored scales). Frequency of meristic values is the present article is to describe two new species indicated in parentheses, if more than one value is from Laos with unique colour pattern. observed; asterisks indicate the condition for the * Rue des Rauraques 6, 2800 Delémont, Switzerland (permanent address); and Lee Kong Chian Natural Histo- ry Museum, National University of Singapore, 2 Conservatory Drive, Singapore 117377. E-mail: [email protected] Ichthyol. Explor. Freshwaters – ISSN 0936-9902 (print) © 2020 by Verlag Dr. Friedrich Pfeil, München, Germany www.pfeil-verlag.de 18 Literature cited Kottelat, M. 2017b. Schistura epixenos, a new species of loach from the Nakai Plateau, Laos (Teleostei: Conway, K. W., R. L. Mayden & K. L. Tang. 2009. Devario Nemacheilidae). Zootaxa, 4300: 44-54. anomalus, a new species of freshwater fish from Kottelat, M. 2020. Redescription of Devario kysonensis Bangladesh (Ostariophysi: Cyprinidae). Zootaxa, and first record from Laos (Teleostei: Cyprinidae). 2136: 49-58. Raffles Bulletin of Zoology, 68: 556-561. Fang, F. 1997a. Redescription of Danio kakhienensis, a Kottelat, M. & J. Freyhof. 2007. Handbook of European poorly known cyprinid fish from the Irrawaddy freshwater fishes. Kottelat, Cornol & Freyhof, Berlin, basin. Ichthyological Exploration of Freshwaters, xiv + 646 pp. 7: 289-298. Kottelat, M. & H. Steiner. 2011. Bangana musaei, a new Fang, F. 1997b. Danio maetaengensis, a new species of cave fish from central Laos (Teleostei: Cyprinidae). cyprinid fish from northern Thailand. Ichthyological Ichthyological Exploration of Freshwaters, 21 (2010 Exploration of Freshwaters, 8: 41-48. [2011]): 313-322. Fang, F. 2003. Phylogenetic analysis of the Asian cypri- Kullander, S. O. 2015. Taxonomy of chain Danio, an Indo- nid genus Danio (Teleostei, Cyprinidae). Copeia, Myanmar species assemblage, with descriptions 2003: 714-728. of four new species (Teleostei: Cyprinidae). Ich- Fang, F. & M. Kottelat. 1999. Danio species from north- thyological Exploration of Freshwaters, 25: 357-380. ern Laos, with descriptions of three new species Kullander, S. O. 2017. Devario fangae and Devario my- (Teleostei: Cyprinidae). Ichthyological Exploration itkyinae, two new species of danionin cyprinids of Freshwaters, 10: 281-295. from northern Myanmar (Teleostei: Cyprinidae: Fang, F. & S. O. Kullander. 2009. Devario xyrops, a new Danioninae). Zootaxa, 4227: 407-421. species of danionine fish from south-western My- Kullander, S. O. & F. Fang. 2009. Danio aesculapii, a new anmar (Teleostei: Cyprinidae). Zootaxa, 2164: 33-40. species of danio from south-western Myanmar Howes, G. J. 1979. Notes on the anatomy of Macro- (Teleostei: Cyprinidae). Zootaxa, 2164: 41-48. chirichthys macrochirus (Valenciennes), 1844, with Kullander, S. O. & M. Norén. 2016. Danio htamanthinus comments on the Cultrinae (Pisces, Cyprinidae). (Teleostei: Cyprinidae), a new species of miniature Bulletin of the British Museum (Natural History), cyprinid fish from the Chindwin River in Myanmar. Zoology, 36: 147-200. Zootaxa, 4178: 535-546. Kottelat, M. 1982. Notes d’ichthyologie asiatique. I. Les Ngo, S. V. 2003. [Two new fish species discovered in genres Parabarilius et Daniops. II. Statut de Cteno- Phong Nha - Ke Bang (Quang Binh Province): gobius cephalopardus. III. Distribution d’Indostomus Danio trangi and Cobitis ylengensis]. Tap Chi Thuy paradoxus. IV. Statut de Puntius roloffi. Bulletin du San [Fisheries Review], 2003: 16-20 [In Vietnamese]. Muséum National d’Histoire Naturelle, Paris, Série Nguyen, T. T., X. K. Nguyen & V. T. Le. 1999. [A new 4, Section A, 4 (3-4): 523-529. species of the genus Chela (Haminton, 1822)]. Pp. Kottelat, M. 1998. Fishes of the Nam Theun and Xe 16-22, backcover, in: T. T. Nguyen (ed.), [Selected Bangfai basins, Laos, with diagnoses of twenty-two paper of Seminar on North Truongson Biodiversity new species (Teleostei: Cyprinidae, Balitoridae, Co- (the second) 40 year celebration of Vinh University]. bitidae, Coiidae and Odontobutidae). Ichthyological Nha Xuat Ban Dai Hoc Quoc Gia, Hanoi [in Viet- Exploration of Freshwaters, 9: 1-128. namese, English summary]. Kottelat, M. 2000. Diagnoses of a new genus and 64 new Pethiyagoda, R., M. Kottelat, A. Silva, K. Maduwage & species of fishes from Laos (Teleostei: Cyprinidae, M. Meegaskumbura. 2008. A review of the genus Balitoridae, Bagridae, Syngnathidae, Chaudhuriidae Laubuca in Sri Lanka, with description of three and Tetraodontidae). Journal of South Asian Natural new species (Teleostei: Cyprinidae). Ichthyological History, 5: 37-82. Exploration of Freshwaters, 19: 7-26. Kottelat, M. 2001. Fishes of Laos. Wildlife Heritage Ramananda, Y. & W. Vishwanath. 2014. Devario derupto- Trust, Colombo, 198 pp. talea, a new species of cyprinid fish from Manipur, Kottelat, M. 2013. The fishes of inland waters of South- India (Teleostei: Cyprinidae). Zootaxa, 3827: 78-86. east Asia: a catalogue and core bibliography of the Roberts, T. R. 1986. Danionella translucida, a new genus fishes known to occur in freshwaters, mangroves and species of cyprinid fish from Burma, one of the and estuaries. Raffles Bulletin of Zoology, Supple- smallest living vertebrates. Environmental Biology ment 27: 1-663. of Fishes, 16: 231-241. Kottelat, M. 2016. The fishes of the Nam Theun and Xe Stuart, B. L., S. Phimmachak, N. Sivongxay & W. G. Bangfai drainages, Laos. Hydroécologie Appliquée, Robichaud. 2010. A new species in the Tylototriton 19: 271-320. asperrimus group (Caudata: Salamandridae) from Kottelat, M. 2017a. Three new species of loaches of the central Laos. Zootaxa, 2650: 19-32. genus Schistura from the Nam Ngiep drainage, central Laos (Teleostei: Nemacheilidae). Raffles Received 13 March 2020 Bulletin of Zoology, 65: 691-706. Revised 2 May 2020 Accepted 19 July 2020 Kottelat: Devario pullatus and D. subviridis The whole contribution can be Dieser Beitrag kann als purchased as PDF fi le. PDF-Datei erworben werden. Availability Verfügbarkeit von PDF-Dateien Prinzipiell sind von allen unseren Publikationen PDF- Generally all our publications are available as PDF fi les; Dateien erhältlich. Komplette Publikationen in der Regel full publications as a general rule after the printed version erst nachdem die gedruckte Version vergriffen ist. An- is out of print. If you have questions concerning particu- fragen bezüglich bestimmter Beiträge richten Sie bitte lar contributions please contact us by e-mail: per E-Mail an [email protected]. [email protected]. Die PDF-Dateien sind urheberrechtlich geschützt. The PDF fi les are protected by copyright. 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