Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.3
T. Rajan, P. GIRISH KUMAR, P. M. Sureshan, V. D. Hegde
A review of the genus Polemistus de Saussure has resulted in identifying and describing a new species from Kerala viz., P. jaferi Tessy, Girish Kumar & Sureshan sp. nov. A key to species of Polemistus from the Indian subcontinent is provided.
通过对 Polemistus de Saussure 属的研究，发现并描述了喀拉拉邦的一个新种，即 P. jaferi Tessy, Girish Kumar & Sureshan sp.提供了印度次大陆 Polemistus 物种的检索表。
{"title":"A review of the genus Polemistus de Saussure (Hymenoptera: Crabronidae) with the description of a new species from India","authors":"T. Rajan, P. GIRISH KUMAR, P. M. Sureshan, V. D. Hegde","doi":"10.11646/zootaxa.5493.2.3","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.3","url":null,"abstract":"A review of the genus Polemistus de Saussure has resulted in identifying and describing a new species from Kerala viz., P. jaferi Tessy, Girish Kumar & Sureshan sp. nov. A key to species of Polemistus from the Indian subcontinent is provided. \u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141923649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.4
Tharindu Ranasinghe, H. Sankararaman, ANUBHAV AGARWAL, A. Sumanapala, H. Ghate
Bagauda aelleni Villiers, 1970 (Hemiptera: Heteroptera: Reduviidae: Emesinae: Leistarchini), described from Sri Lanka, is reported from India for the first time. Based on specimens collected at Sirumalai, Tamil Nadu, the species is redescribed and various aspects of its morphology and life history are highlighted and illustrated.
{"title":"First record of Bagauda aelleni (Hemiptera: Reduviidae) from India and notes on its natural history in Sri Lanka","authors":"Tharindu Ranasinghe, H. Sankararaman, ANUBHAV AGARWAL, A. Sumanapala, H. Ghate","doi":"10.11646/zootaxa.5493.2.4","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.4","url":null,"abstract":"Bagauda aelleni Villiers, 1970 (Hemiptera: Heteroptera: Reduviidae: Emesinae: Leistarchini), described from Sri Lanka, is reported from India for the first time. Based on specimens collected at Sirumalai, Tamil Nadu, the species is redescribed and various aspects of its morphology and life history are highlighted and illustrated.\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141922247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.1
Amir Biranvand, L. Fekrat, Jaroslav Větrovec, Hamed Ghobari, E. Hamidi, M. Z. Khormizi, Nader Azadbakht, O. Nedvěd, Fatemeh Romasi, P. Ceryngier
Although checklists of the Iranian ladybird beetles (Coleoptera: Coccinellidae) have been made twice in recent years, they have a number of shortcomings. Moreover, since these checklist were published, several ladybird species have been added to the Iranian fauna and several previously reported have been excluded. We therefore compiled an updated checklist of Coccinellidae found in Iran and its individual provinces based on available literature and previously unpublished records. The unpublished data allowed the addition of one species, Hyperaspis guttulata Fairmaire, 1870, to the Iranian fauna. On the other hand, some species previously reported from Iran are unlikely to occur there due to their general distribution and lack of information on their introduction into the region. We found 14 such misreported species in the literature, mostly of the Nearctic and Neotropical origin. Our revised checklist contains 149 species, of which 19 have only generally been reported as occurring in Iran (without attribution to provinces). The ladybird fauna of the different Iranian provinces has been studied very unevenly, with the number of reported species ranging from 7 (Bushehr) to 59 (Fars).
{"title":"Checklist and distribution of ladybirds (Coleoptera, Coccinellidae) in Iranian provinces","authors":"Amir Biranvand, L. Fekrat, Jaroslav Větrovec, Hamed Ghobari, E. Hamidi, M. Z. Khormizi, Nader Azadbakht, O. Nedvěd, Fatemeh Romasi, P. Ceryngier","doi":"10.11646/zootaxa.5493.2.1","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.1","url":null,"abstract":"Although checklists of the Iranian ladybird beetles (Coleoptera: Coccinellidae) have been made twice in recent years, they have a number of shortcomings. Moreover, since these checklist were published, several ladybird species have been added to the Iranian fauna and several previously reported have been excluded. We therefore compiled an updated checklist of Coccinellidae found in Iran and its individual provinces based on available literature and previously unpublished records. The unpublished data allowed the addition of one species, Hyperaspis guttulata Fairmaire, 1870, to the Iranian fauna. On the other hand, some species previously reported from Iran are unlikely to occur there due to their general distribution and lack of information on their introduction into the region. We found 14 such misreported species in the literature, mostly of the Nearctic and Neotropical origin. Our revised checklist contains 149 species, of which 19 have only generally been reported as occurring in Iran (without attribution to provinces). The ladybird fauna of the different Iranian provinces has been studied very unevenly, with the number of reported species ranging from 7 (Bushehr) to 59 (Fars).\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141923566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.7
C. Deschodt, Catherine L. Sole
Onthophagus pragtig Deschodt, new species is described and illustrated from South Africa. Its known collection localities are shown. We also briefly describe and illustrate three distinct subgroups in the18th Onthophagus group of d’Orbigny (1913) and further provide a checklist of the known species in this group while dividing them into these subgroups where known.
{"title":"A new and unusually ornate southern African dung beetle species in d’Orbigny’s Onthophagus Group 18 (Coleoptera: Scarabaeidae: Onthophagini)","authors":"C. Deschodt, Catherine L. Sole","doi":"10.11646/zootaxa.5493.2.7","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.7","url":null,"abstract":"Onthophagus pragtig Deschodt, new species is described and illustrated from South Africa. Its known collection localities are shown. We also briefly describe and illustrate three distinct subgroups in the18th Onthophagus group of d’Orbigny (1913) and further provide a checklist of the known species in this group while dividing them into these subgroups where known.\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141921500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.6
MENGYU LI, Oiha Bakumenko, Ding Yang, Wei-hai Li
Two new species of nemourid stonefly genus Nemoura, N. liuqifeii sp. nov. and N. shennongjia sp. nov., are described from Shennongjia National Park, Hubei Province of south-central China. The relationships between the new species and similar species in the genus are discussed. Three females of an undetermined Nemoura are also described from the park, however, they were not successfully associated with the new species or previously barcoded species.
描述了产于中国中南部湖北省神农架国家公园的两只霓虹石蝇新种Nemoura, N. liuqifeii sp.讨论了新种与本属同类物种的关系。此外，还描述了来自神农架国家公园的三种雌性未定种Nemoura，但它们没有成功地与新种或以前的条码种联系在一起。
{"title":"The genus Nemoura (Plecoptera: Nemouridae) from Shennongjia National Park of Hubei, China","authors":"MENGYU LI, Oiha Bakumenko, Ding Yang, Wei-hai Li","doi":"10.11646/zootaxa.5493.2.6","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.6","url":null,"abstract":"Two new species of nemourid stonefly genus Nemoura, N. liuqifeii sp. nov. and N. shennongjia sp. nov., are described from Shennongjia National Park, Hubei Province of south-central China. The relationships between the new species and similar species in the genus are discussed. Three females of an undetermined Nemoura are also described from the park, however, they were not successfully associated with the new species or previously barcoded species. \u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141921337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.8
V. M. Gnezdilov
A new genus, Petocica gen. n., with a type species, Petocica perforata sp. nov., is described from vicinity of Leinster in Western Australia. A new species is peculiar by the presence of sensory pits on abdominal sternites IV–VI in adult female. The taxa of Fulgoroidea with sensory pits in adults and possible function of the pits are briefly discussed.
{"title":"New genus and new species of the tribe Elicini Melichar (Hemiptera: Fulgoroidea, Tropiduchidae) with sternal sensory pits in imago from Western Australia","authors":"V. M. Gnezdilov","doi":"10.11646/zootaxa.5493.2.8","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.8","url":null,"abstract":"A new genus, Petocica gen. n., with a type species, Petocica perforata sp. nov., is described from vicinity of Leinster in Western Australia. A new species is peculiar by the presence of sensory pits on abdominal sternites IV–VI in adult female. The taxa of Fulgoroidea with sensory pits in adults and possible function of the pits are briefly discussed.\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141924319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.5
Wenbin Liu, CHENG-YAN Wang, YA-NING Tang, WEN-XUAN Pei, CHUN-CAI Yan
The genus Cryptochironomus has a cosmopolitan distribution including over 140 valid described species worldwide. The morphological characteristics and DNA barcode data of Cryptochironomus inflatus Liu, sp. nov. based on specimens collected from Oriental China. DNA barcode analysis including the partial COI sequences of species of genus Cryptochironomus is conducted. An updated key to adult males of the genus is provided.
秀丽隐杆线虫属（Cryptochironomus）分布于世界各地，包括 140 多个已描述的有效物种。基于从中国东方采集的标本，研究了Cryptochironomus inflatus Liu, sp.对隐翅鱼属物种的部分 COI 序列进行了 DNA 条形码分析。提供了该属成年雄虫的最新检索表。
{"title":"DNA barcodes and morphology reveal new species within the Cryptochironomus Kieffer from Oriental China (Diptera: Chironomidae)","authors":"Wenbin Liu, CHENG-YAN Wang, YA-NING Tang, WEN-XUAN Pei, CHUN-CAI Yan","doi":"10.11646/zootaxa.5493.2.5","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.5","url":null,"abstract":"The genus Cryptochironomus has a cosmopolitan distribution including over 140 valid described species worldwide. The morphological characteristics and DNA barcode data of Cryptochironomus inflatus Liu, sp. nov. based on specimens collected from Oriental China. DNA barcode analysis including the partial COI sequences of species of genus Cryptochironomus is conducted. An updated key to adult males of the genus is provided.\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141923588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.11646/zootaxa.5493.2.2
Hong Du, Jiawei Liu, Kai Heller, Bismillah Shah, Qingyun Wang, Junhao Huang
Four morphologically allied species of the Bradysia hilaris group were studied from China. In a DNA metabarcoding based dipteran diversity study in Zhejiang, eastern China, a hyper-abundant sciarid species was discovered. It was further recognized in this study to be new to science, Bradysia tianmuensis Du & Huang sp. nov., as well as a morphologically similar species, Bradysia curvula Du & Huang sp. nov. Both new species were found to be fairly similar morphologically to the holotype of Bradysia noduspina Yang, Zhang & Yang, 1993 from Guizhou in western China. However, the paratype of B. noduspina appeared to be different from the holotype and determined to be new to science, Bradysia chikunae Du & Huang sp. nov. A phylogenetic tree of all the available 31 COI sequences of the Bradysia hilaris group was provided. Molecular work conducted in the current study also supports Bradysia tianmuensis Du & Huang sp. nov. and Bradysia curvula Du & Huang sp. nov. as new to science thus the four species were described or redescribed accompanied by detailed imagery of habitus and other characters useful for determination.
研究了来自中国的四个形态上相似的Bradysia hilaris属物种。在中国东部浙江进行的一项基于DNA元条码的双翅目多样性研究中，发现了一个超丰富的鞘翅目物种。该研究还发现了一个新种--Bradysia tianmuensis Du & Huang sp.nov.，以及一个形态相似的种--Bradysia curvula Du & Huang sp.nov.。这两个新种在形态上与中国西部贵州的 Bradysia noduspina（杨、张、杨，1993 年）的主模式相当相似。然而，B. noduspina 的副样似乎与主样不同，并被确定为科学上的新种，即 Bradysia chikunae Du & Huang sp.本研究提供了 Bradysia hilaris 组所有 31 条 COI 序列的系统发生树。和 Bradysia curvula Du & Huang sp.nov.为科学新种，因此对这四个物种进行了描述或重新描述，并附有详细的生境图像和其他有助于确定的特征。
{"title":"Morphology and DNA barcodes of four species of Bradysia hilaris group from China (Diptera, Sciaridae)","authors":"Hong Du, Jiawei Liu, Kai Heller, Bismillah Shah, Qingyun Wang, Junhao Huang","doi":"10.11646/zootaxa.5493.2.2","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.2.2","url":null,"abstract":"Four morphologically allied species of the Bradysia hilaris group were studied from China. In a DNA metabarcoding based dipteran diversity study in Zhejiang, eastern China, a hyper-abundant sciarid species was discovered. It was further recognized in this study to be new to science, Bradysia tianmuensis Du & Huang sp. nov., as well as a morphologically similar species, Bradysia curvula Du & Huang sp. nov. Both new species were found to be fairly similar morphologically to the holotype of Bradysia noduspina Yang, Zhang & Yang, 1993 from Guizhou in western China. However, the paratype of B. noduspina appeared to be different from the holotype and determined to be new to science, Bradysia chikunae Du & Huang sp. nov. A phylogenetic tree of all the available 31 COI sequences of the Bradysia hilaris group was provided. Molecular work conducted in the current study also supports Bradysia tianmuensis Du & Huang sp. nov. and Bradysia curvula Du & Huang sp. nov. as new to science thus the four species were described or redescribed accompanied by detailed imagery of habitus and other characters useful for determination.\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141923687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-08DOI: 10.11646/zootaxa.5493.1.2
MIN OK SONG, CHANG-HO Lee
A taxonomic study on bdelloid rotifers collected from terrestrial habitats such as mosses and leaf litter at two different locations in Korea resulted in three new species, Habrotrocha changhoi n. sp., H. microcornis n. sp. and Philodina undulata n. sp. Habrotrocha changhoi n. sp. is easily distinguished from its congeners by five small dorsal humps on preanal pseudosegment. The most significant diagnostic characteristic of Habrotrocha microcornis n. sp. is the tiny spurs with very wide interspace, which is about 4–5 times as wide as spur base width. Habrotrocha changhoi n. sp. and H. microcornis n. sp. are the first new Habrotrocha species from Korea. The most prominent characteristics that distinguish Philodina undulata n. sp. from its congeners are the first trunk pseudosegment expanded anteriorly in feeding as well as the plump trunk that has wavy lateral margins and abruptly tapers to rump in feeding. Here these three new species are described in detail and illustrated. In addition, the partial sequences of mitochondrial cytochrome c oxidase subunit I gene (CO1) for these three new species are provided here.
通过对从韩国两个不同地点的苔藓和落叶等陆生栖息地采集的双壳轮虫进行分类研究，发现了三个新种：Habrotrocha changhoi n. sp.、H. microcornis n. sp.和 Philodina undulata n. sp.。Habrotrocha microcornis n. sp.最重要的诊断特征是细小的距，距间非常宽，约为距基部宽度的 4-5 倍。Habrotrocha changhoi n. sp.和 H. microcornis n. sp.是来自韩国的第一个 Habrotrocha 新种。Philodina undulata n. sp.区别于其同属种的最显著特点是第一躯干假节在摄食时向前方扩展，以及丰满的躯干具有波浪状的侧缘，并在摄食时突然变细至臀部。本文对这三个新种进行了详细描述和图解。此外，本文还提供了这三个新种的线粒体细胞色素 c 氧化酶亚单位 I 基因（CO1）的部分序列。
{"title":"Descriptions of three new species of Philodinida (Rotifera, Bdelloidea) from Korea","authors":"MIN OK SONG, CHANG-HO Lee","doi":"10.11646/zootaxa.5493.1.2","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.1.2","url":null,"abstract":"A taxonomic study on bdelloid rotifers collected from terrestrial habitats such as mosses and leaf litter at two different locations in Korea resulted in three new species, Habrotrocha changhoi n. sp., H. microcornis n. sp. and Philodina undulata n. sp. Habrotrocha changhoi n. sp. is easily distinguished from its congeners by five small dorsal humps on preanal pseudosegment. The most significant diagnostic characteristic of Habrotrocha microcornis n. sp. is the tiny spurs with very wide interspace, which is about 4–5 times as wide as spur base width. Habrotrocha changhoi n. sp. and H. microcornis n. sp. are the first new Habrotrocha species from Korea. The most prominent characteristics that distinguish Philodina undulata n. sp. from its congeners are the first trunk pseudosegment expanded anteriorly in feeding as well as the plump trunk that has wavy lateral margins and abruptly tapers to rump in feeding. Here these three new species are described in detail and illustrated. In addition, the partial sequences of mitochondrial cytochrome c oxidase subunit I gene (CO1) for these three new species are provided here.\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study focuses on Macrognathus pentophthalmos, one of the two freshwater spiny eel species in Sri Lanka, which was once abundant in lowland floodplains. However, since the 1980s, this species has experienced a significant population decline, the causes of which remain unknown. It is presently assessed as Critically Endangered in the National Red List. Here, we report on a juvenile and an adult M. pentophthalmos discovered in the dry zone lowlands of the island. Using the mitochondrial cytochrome oxidase subunit 1 marker, we reveal subtle genetic differences between M. pentophthalmos and its Indian congener, M. aral. Additionally, we delve into the historical records of M. pentophthalmos in Sri Lanka, tracing its decline, and suggest strategic hotspots for further investigation into its current status. This study aims to contribute insights into the enigmatic decline of this species while shedding light on its genetic relationships and proposing targeted areas for conservation efforts.
{"title":"Sri Lanka’s elusive freshwater spiny eel, Macrognathus pentophthalmos (Teleostei: Mastacembelidae)","authors":"Hiranya Sudasinghe, Tharindu Ranasinghe, Rachith Priyankara Perera, Lukas Rüber","doi":"10.11646/zootaxa.5493.1.6","DOIUrl":"https://doi.org/10.11646/zootaxa.5493.1.6","url":null,"abstract":"This study focuses on Macrognathus pentophthalmos, one of the two freshwater spiny eel species in Sri Lanka, which was once abundant in lowland floodplains. However, since the 1980s, this species has experienced a significant population decline, the causes of which remain unknown. It is presently assessed as Critically Endangered in the National Red List. Here, we report on a juvenile and an adult M. pentophthalmos discovered in the dry zone lowlands of the island. Using the mitochondrial cytochrome oxidase subunit 1 marker, we reveal subtle genetic differences between M. pentophthalmos and its Indian congener, M. aral. Additionally, we delve into the historical records of M. pentophthalmos in Sri Lanka, tracing its decline, and suggest strategic hotspots for further investigation into its current status. This study aims to contribute insights into the enigmatic decline of this species while shedding light on its genetic relationships and proposing targeted areas for conservation efforts.\u0000 ","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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