NAT. NAT. HlST. BUL L. SIAM Soc. 55 (1): 85-97 ，2007 DESIGNATION OF LECTOTYPES AND NEOTYPES ， SYSTEMATIC STATUS ，AND BIOLOGICAL REMARKS ON RED RlVER CYPRINIDAE DESCRIBED BY NGUYEN AND DOAN ， 1969 η 'son R. Roberts 1 and David Catanul ABSTRACT A poorly known paper describing new taxa of cyprinid fishes from the Red River basin of North North Vietnam (NaUYEN & DOAN ， 1969) is regarded here ぉ validly published for purposes of zoological zoological nomenclature in 出e sense of the ICZN. The present taxonomic status of the 2 new genera ， 16 new species ，and 1 new subspecies 釘 e reviewed on the basis ofthe original specimens ， examined by us for the first time ， and the hitherto unpublished original figures (see preceding paper paper by NaUYEN ， 2007). No type specimens were designated in the original publication. Lec- totypes 悶 designated here from the material originally reported and figured for La ichowcypris dai ，Nicholsicypris dorsohorizontalis ，Li ssochilus laocaiensis ， Puntius takhoaensis ，Varicorhinus argenta ωs ，V. erythrogenys ，V. microstomus ，Onychosloma microcorpus ，and O. brevicephalus. Neotypes 蹴 designated for Crossocheilus namlenensis and Eη， throculter pseudobrevicauda macrothalmus. macrothalmus. Biological observations are reported .f or several of the taxa. La ichowcypris ，a distinctive distinctive Cyprininae known only from the Red River basin ， has not been seen since 1970 and might might be extinc t. Li ssochilus laocaiensis ，refe 汀ed to the genus Acrossocheilus ，apparently is a valid valid species. Recently collected material indicates it and other congeners are progynous her- maphrodites maphrodites that undergo marked changes in coloration as they change 合om sexually imrnature juveniles juveniles to females to males. Li ssochilus longibarbus is a junior syno 町 m of Spinibarbus mac- racanthus racanthus (Pellegrin & Chevey 1936) ， which is in tum a junior synonym of Barbus alloiopleurus Vaillant Vaillant 1893. 百le species should be known as Paraspinibarbus alloiopleurus (Vaillant 1893). The iII ustrated type specimen of Crossocheilus benasi Pellegrin & Chevey 1936 is designated as neotype neotype of Crossocheilus namlenensis Nguyen & Doan 1969; the nominal species thus becomes an an objective junior synonym of Neolissochilus benasi (Pellegrin & Chevey 1936). The holotype of of E. η throculter hypselonotus ぬovantieni Banaresu 1967 from the Boi River in north Vi etnam is is designated as nωtype for Erythroculter pseudobrevicauda macrothalmus Nguyen & Doan 1969; 1969; this nominal subspecies 出us becomes a junior objective synonym of Ancherythroculter daovantieni daovantieni (Banarescu 1967). Hemibarbus longianalis Nguyen & Do an 1969 ， preoccupied by Hembarbus longianalis Kimura 1943 ，is permanently invalid. Key words: Acrossocheilus laocaiensis ，Ancherythroculter daovantieni ，Lissochilus laocaiensis ， Neolissochilus Neolissochilus benasi ， Paraspinibarbus alloiopleurus ，Spinibrarbus macracanthus ， progynous hermaphroditism hermaphroditism IResearch Associate IResearch ， Smithsonian Tropical Research lnstitute; tysonregale 氾[email protected] 2S en ior Collection Manager ， Department of Ichthyology ， Califomia Academy of Sciences; dcatania@calacademy. org org (for reprint requests). Received Received 5 Sep 旬mber 2006; accepted 31 October 2006. 85 85 86 TVSON R. ROBERTS AND DAVID CATANIA 町 TRODUC 百ON A poorly known paper in Vietnamese by Nguyen Van Hao and Hoa Le Doan is an im- portant portant con 凶 bution to knowledge of the 合国hwater fishes of the Red River basin (NOUYEN & DOAN ， 1969). In addition to a review of the then current taxonomic status of various poorly poorly known North Vietnamese cyprinid fishes ，it includes original descriptions of 2 new genera ， 16 new species ，and 1 new subspecies ，all in the far 凶ly Cyprinidae. It represents 吐le most substantial contribution to date to systematic ichthyology of the Research Institute for Aquaculture Aquaculture in Hanoi (RIAH No. 1) which houses the most comprehensive collection of the fishes fishes of the Red River basin to be found anywhere. Th e present 釘 ticle is preceded by an English English translation by Nguyen Van Car 由 (NOUYEN ， 2007) and an article with 15 of 由e 17 hitherto hitherto unpublished figures by Nguyen Van Hao ，one of the original authors (NouYEN ， 2007). 百le present paper concems: 1) designation of lectotypes for all but two of the species level taxa; taxa; 2) designation of neotypes for the two species-level t砿 a remaining without lectotypes; 3) 3) current taxonomic staωs of the generic and species taxa; level and 4) biological observa- tions tions on some of the taxa. For some years before and after 1969 Vietnam was politically ， academically and scientifically scientifically one of the most isolated countries in the world. Vietnamese ichthyologists had v註tually no contact with colleagues in any other coun 住Y (Mai Din Yenh ，pers. comm. ， 1999). τ'h ey taught each other and decided amongst themselves how to report on 日sh species. Some intemationally intemationally accepted conventions were not followed.τ 'h e work by Mai Din Yen (MAI ， 1978) 1978) as well as that ofNoUYEN & DOAN (1969) reflects this isolation. New fish species were proposed proposed in both of these works without designation of type specimens. Many specimens are reported reported on but none are referred to by institutional catalog numbers. In In the present paper all of the spec 泊施ns used in the accounts of new species by NOUYEN & DOAN (1969) ，al 血ough not named in the paper as such ，紅 e regarded as syntypes ，and hence eligible eligible for lectotype designation. Most of these specimens 釘 e in the fish collection of the Research Research Institute for Aquaculture No. 1 in Hanoi. Wh enever 白ey could be identified ， the specimens specimens originally drawn for inclusion in NOUYEN & DOAN (1969) but not published until NOUYEN ， V.H. (2007) (preceding article) 眠 designated as leωtypes. 百ley have been identified as as such on the basis of a combination of information: labels on the specimen bottles includ- ing ing the n創 nes given to the new species and often the same locality data; scale bars in mm on the the original figures making it possible to calculate the approximate or in some instances the precise precise standard lengths of the specimens figured; and 合om the drawings themselves. These 紅 'e of such high quality 血at not only the species but sometimes the actual specimen which served served as the basis for a drawing can be identified with near certainty. Lectoypes 紅 e designated for all of the new species level taxa described by NOUYEN & DOAN (1969) for which: 1) the original drawings 紅 'e available (see preceding article); and 2) specimens 紅 e present in the RIAH fish collection coηesponding to the drawings. In a few instances instances either the draw 泊gs are missing or no specimens could be found co 町 esponding to the the drawings.τ 'h ese instances are considered below. Th e order of presentation of the taxa follows 白紙 ofthe original paper (NOUYEN & DOAN ， 1969). Neotypes are designated for Crossocheilus namlenensis and Eη throculter pseudobrevi- cauda macrothalmus. As of consequences these nominal taxa become objective junior syno- nyms ，respectively ，of benasi Neolissochelus (Pellegrin & Chevey 1936) and Anerythroculter daovantieni daovantieni (Ban 紅白cu 1967). R E D RI VE R CY PRI N ID AE D ESC RIB E D B Y NG U YEN AN D D OAN ，1 969 87 Fi gur e 1. Laichowcyp ri s dai (N guye n a nd D oa n 1969). a， 239 -111111 lec totype( RI A H 101 6) (ph oto by fir st auth or); b， 59.7 -111111 lecto paratype (CAS 2 18975 ).( ph oto s by Jon Fo ng)。 88 TYSON R. R OBERTS AND D AVID CATANIA Figure 2. Opsarius mocopterus (Nguyen and Doan 1969). A highl y tuberc ul ate sexually mature male similar to specimens illustrated for Paradaniop.l' macropterus Nguyen and Doan, 1969. Figure 3. Neolissochilus be nasi (Pellegrin and Chevey 1936). Above, draw ing of the type specimen of N. be nasi designated here as the neotype of Crossocheilus nam/enensis Nguyen and Doan 1969 (from Pe ll egrin and Chevey, 1936). Below, a subacl ult or young ad ul t Neolissochilus IJ enasi (Pe llegrin and Chevey, 1936), a va lid species apparentl y endemi c to the Reel Ri ver Basin . .By the present designation of a neotype, Cros­ socheilus namlenensis Nguyen and Doan 1969 becomes an objecti ve synonym of thi s species. RED RIVER CYPRINIDAE DESCRIBED BY NGUYEN AND DOAN ， 1969 89 The RIAH fish collection is almost entirely uncatalogued. During our visit the specimens designated designated here as lectotypes and some other specimens were assigned the catalog numbers reported reported here. It is hoped that the entire collection will be inven 旬 ried ，catalogued ，and made accessible accessible for scientific research. DESIGNATION OF LECTOTYPES AND NEOTYPES None ofthe 17 new species-Ievel t鼠 a (16 new species and 1 new subspecies) proposed by NGUYEN & DOAN (1969) has had a type specimen designation. Here the specimens utilized in 曲 e original descriptions are reg 紅白d as syntypes. Th ese specimens 釘 e deposited in 由e fish fish collection of RIAH No 1 (Research Institute for Aquaculture ， in Hanoi). All of the new species species were illustrated ，and all but two of the illustrations 紅 e extant and have been repro- duced in the preceding paper (NGUYEN ， V.H. 2007). Le ctotypes 紅 e hereby designated for 14 of of the 17 nominal taxa. Wh enever possible the specimen originally figured has been identified and designated as the lectotype. Neotypes are designated for two nominal taxa for which no specimens 釘 'e extent in 出e RIAH collection ，Crossocheilus namlenensis and Eη throculter pseudobrevicauda pseudobrevicauda macrothalmus. By these designations they become ，respectively ，objective junior junior synonyms of Neolissocheilus benasi (Pellegrin & Chevey 1936) and Arche η throculter daovantieni daovantieni (Banarescu 1969). The only nominal species of NGUYEN & DOAN (1969) for which neither lectotypes or neotypes are here designated are Lissochilus brevispinis and 拘 ricorhinus argentatus.