American Museum Novitates最新文献_第4页

A Revision of the Didelphid Marsupial Genus Marmosa Part 4. Species of the Alstoni Group (Subgenus Micoureus) 双翅目有袋动物属的修订(四)。小鲵群种(小鲵亚属)

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-12-08 DOI: 10.1206/3983.1

R. Voss, Thomas C. Giarla, S. Jansa

引用次数: 3

A New Dromaeosaurid (Dinosauria: Coelurosauria) from Khulsan, Central Mongolia 文章题目蒙古中部呼尔山一新龙目(恐龙纲:颈龙目)

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-11-08 DOI: 10.1206/3982.1

James G. Napoli, Alexander Ruebenstahl, Bhart‐Anjan S. Bhullar, A. Turner, M. Norell

{"title":"A New Dromaeosaurid (Dinosauria: Coelurosauria) from Khulsan, Central Mongolia","authors":"James G. Napoli, Alexander Ruebenstahl, Bhart‐Anjan S. Bhullar, A. Turner, M. Norell","doi":"10.1206/3982.1","DOIUrl":"https://doi.org/10.1206/3982.1","url":null,"abstract":"ABSTRACT Dromaeosaurid theropods represent a rare but important clade of nonavialan dinosaurs. Their close evolutionary relationship to modern birds has placed them at the center of paleontological research for the last several decades. Herein we describe a new species of dromaeosaurid—Kuru kulla, gen. et sp. nov.—based on a partial skeleton from the Late Cretaceous Khulsan locality (Barun Goyot Formation) of Mongolia. This species is diagnosed by several autapomorphies within Dromaeosauridae, including a sharp groove anterior and ventral to the narial fossa on the premaxilla, a posterolaterally directed hornlet on the posterodorsal process of the lacrimal, a deep surangular bearing two surangular foramina, and anteriorly displaced pleurocoels on the dorsal centra. The taxon is further characterized by a unique combination of characters, including a mediolaterally narrow metatarsal II, serrations on both carinae of the dentary teeth, hyposphenes that are widely separated but joined by a web of bone, and a lacrimal with a poorly developed boss on its lateral surface. Phylogenetic analysis finds Kuru kulla to be the sister taxon of Adasaurus mongoliensis, from the slightly later Nemegt Formation, with which it is united by three synapomorphies: a posterior surangular foramen that is ∼30% the depth of the surangular, absence of a fourth trochanter of the femur, and thoracic centra that are markedly longer than their midpoint widths. The recognition of this taxon has important implications for common assumptions of Mesozoic terrestrial ecosystem structure and adds new data to a recently recognized pattern in dromaeosaurid faunal composition among Late Cretaceous localities in Mongolia and Inner Mongolia (Nei Mongol Autonomous Region, China).","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"2021 1","pages":"1 - 47"},"PeriodicalIF":1.5,"publicationDate":"2021-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42581248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

A New Troglomorphic, Leaf-litter Scorpion from Ecuador (Troglotayosicidae: Troglotayosicus) 厄瓜多尔一新种穴居凋落叶蝎(穴居蝗科:穴居蝗科)

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-11-03 DOI: 10.1206/3981.1

Ricardo Botero-Trujillo, J. Ochoa, L. Prendini

引用次数: 0

Two New Phenacogrammus (Characoidei; Alestidae) from the Ndzaa River (Mfimi-Lukenie Basin) of Central Africa, Democratic Republic of Congo 刚果民主共和国中部非洲Ndzaa河（Mfimi-Lukenie盆地）的两个新Phenacogrammus（Characoidei；Alestidae）

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-11-03 DOI: 10.1206/3980.1

M. Stiassny, S. E. Alter, R. J. Monsembula Iyaba, T. Liyandja

{"title":"Two New Phenacogrammus (Characoidei; Alestidae) from the Ndzaa River (Mfimi-Lukenie Basin) of Central Africa, Democratic Republic of Congo","authors":"M. Stiassny, S. E. Alter, R. J. Monsembula Iyaba, T. Liyandja","doi":"10.1206/3980.1","DOIUrl":"https://doi.org/10.1206/3980.1","url":null,"abstract":"ABSTRACT Two new Phenacogrammus are described from the Ndzaa River, a small left-bank tributary of the Mfimi-Lukenie River in the central Congo basin. They share with P. deheyni, a congener endemic to the Cuvette Centrale to the north, a prominent anterior expansion of the first pleural rib; a feature interpreted here as a synapomorphy diagnostic for this species assemblage. The two new species are readily differentiated from P. deheyni based on differences in pigmentation patterning, a lower number of scales in longitudinal series (26–28 vs. 29–33) and a longer head length (m. 24.9% SL vs. 21.7 and 23.2% SL). Phenacogrammus flexus, new species, is distinguished from all congeners in the possession of 6 (vs. 7) supraneural bones, and a characteristic zigzag pattern of black pigmentation along and below the midline extending from the posterior border of the opercle to the base of the caudal peduncle. While no unambiguous morphological autapomorphies have been located to diagnose P. concolor, new species, it is nonetheless readily distinguished from all congeners, except P. deheyni and P. flexus, in the possession of a prominent anterior expansion of the first pleural rib. It differs from both P. deheyni and P. flexus in the absence of a dominant pigmentation patterning over the flanks and caudal peduncle. Additionally, it differs from P. flexus in a shallower body depth (m. 24.9% vs. 27.0% SL) and in the possession of 7 (vs. 6) supraneurals. The three species exhibit extensive divergence in mt-COI sequence (P. flexus vs. P. concolor 10.2%–11%; P. flexus vs deheyni 12.9%–13.5%; P. concolor vs. deheyni 11.3%–12.9%). Furthermore, analysis of shape variation utilizing geometric morphometrics indicates that each species differs significantly in body shape.","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"2021 1","pages":"1 - 22"},"PeriodicalIF":1.5,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48351263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A New Species of Histiotus Gervais, 1856 (Chiroptera, Vespertilionidae), from the Pacific Coast of Northern Peru 1856年秘鲁北部太平洋沿岸野田鼠一新种(翼翅目，野田鼠科)

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-10-13 DOI: 10.1206/3979.1

P. Velazco, F. Almeida, Vinícius C. Cláudio, A. Giménez, N. Giannini

{"title":"A New Species of Histiotus Gervais, 1856 (Chiroptera, Vespertilionidae), from the Pacific Coast of Northern Peru","authors":"P. Velazco, F. Almeida, Vinícius C. Cláudio, A. Giménez, N. Giannini","doi":"10.1206/3979.1","DOIUrl":"https://doi.org/10.1206/3979.1","url":null,"abstract":"ABSTRACT The Pacific coastal desert of Peru harbors a unique bat fauna, including narrowly endemic taxa adapted to arid environments. This region was also the setting where several pre-Incan civilizations flourished. The Moche culture (100–850 CE) was one of those, with a rich and diverse material culture that included strikingly realistic ceramic representations of the regional flora and fauna. In particular, one Mochica pottery vessel is in the form of a bat that, based on external characteristics (large pinnae and tragus, pinnae connected by high band of membrane across the forehead, and lack of noseleaf), clearly represents an individual of the vespertilionid genus Histiotus. The morphological characteristics observed in this vessel, in addition to the area of influence of the Moche culture, suggests that this vessel depicts a species previously unknown to science that we describe here as new on the basis of two specimens obtained in 2012 in the Peruvian department of Piura. Our new species, Histiotus mochica, can be distinguished from other congeners by having unicolored dorsal fur, medial lobes of pinnae greater than 9.5 mm wide, and a well-developed (>4.3 mm high) transverse band of skin connecting the pinnae. Cytochrome b sequence data indicate that the new species is sister to H. humboldti from the Andes of Colombia and northern Ecuador. The new species is a medium-sized Histiotus that clusters with H. laephotis, H. velatus, and with small specimens of H. montanus in our multivariate analyses. With the description of H. mochica, the diversity of the genus increases to 11 species. We provide a key based on external characters of all known species of Histiotus.","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"2021 1","pages":"1 - 30"},"PeriodicalIF":1.5,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42136241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Description of a New Species of Rariphotic Parapercis (Perciformes: Pinguipedidae) from the Solomon Islands 文章标题所罗门群岛羽蝗类一新种记述(尾形目:羽蝗科)

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-09-30 DOI: 10.1206/3978.1

J. Sparks, Nicholas Chaloux, Robert C. Schelly, D. F. Gruber, Tate S. Sparks, Brennan T. Phillips

{"title":"Description of a New Species of Rariphotic Parapercis (Perciformes: Pinguipedidae) from the Solomon Islands","authors":"J. Sparks, Nicholas Chaloux, Robert C. Schelly, D. F. Gruber, Tate S. Sparks, Brennan T. Phillips","doi":"10.1206/3978.1","DOIUrl":"https://doi.org/10.1206/3978.1","url":null,"abstract":"ABSTRACT A new species belonging to the pinguipedid genus Parapercis is described herein from a single specimen collected via a remotely operated vehicle (ROV) from rariphotic depths in the Western Province of the Solomon Islands. Parapercis rota, new species, is readily distinguished from all other congeners by a unique pigmentation pattern comprising four large, rounded, orangish-olive saddles dorsally on the flank, each with a distinct, large, dorsomedial white spot completely enclosed within the saddles, plus a fifth saddle on the caudal peduncle with only a small white dorsomedial dot; 10 discrete broad, dark orangish-olive oval vertical bars below the lateral midline; a single row of dark spots on the soft dorsal fin; caudal fin lined dorsally and ventrally with stripes of yellowish-olive pigmentation extending the length of the fin; and two prominent dark brown to black spots at the caudal-fin base. ROV-based collecting systems are a promising and relatively affordable technology for studying ichthyological diversity on deeper reef habitats, particularly those beyond the reach of technical SCUBA. The discovery and description of P. rota adds to the growing number of Parapercis species that are known to occur in mesophotic and deeper waters.","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"2021 1","pages":"1 - 12"},"PeriodicalIF":1.5,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45744629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Revision of the Genus Hermacha Simon, 1889 (Mygalomorphae: Entypesidae), in Southern Africa with Revalidation of Hermachola Hewitt, 1915, and Brachytheliscus Pocock, 1902 Hermacha Simon属的修订，1889年（Mygalomorphae:Entypsidae），在南部非洲，Hermachola Hewitt的重新验证，1915年，和Brachyliscus Pocock，1902年

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-09-02 DOI: 10.1206/3977.1

Duniesky Ríos-Tamayo, I. Engelbrecht, P. Goloboff

{"title":"A Revision of the Genus Hermacha Simon, 1889 (Mygalomorphae: Entypesidae), in Southern Africa with Revalidation of Hermachola Hewitt, 1915, and Brachytheliscus Pocock, 1902","authors":"Duniesky Ríos-Tamayo, I. Engelbrecht, P. Goloboff","doi":"10.1206/3977.1","DOIUrl":"https://doi.org/10.1206/3977.1","url":null,"abstract":"ABSTRACT The southern African species of the mygalomorph spider genus Hermacha Simon, 1889, are revised. Eight species are redescribed: H. brevicauda Purcell, 1903; H. caudata Simon, 1889; H. evanescens Purcell, 1903; H. fulva Tucker, 1917; H. lanata Purcell, 1902; H. nigrispinosa Tucker, 1917; H. sericea Purcell, 1902; and H. tuckeri Raven, 1985. The female of H. sericea and the male of H. evanescens are described for the first time. Three new species are described: H. septemtrionalis, sp. nov., H. maraisae, sp. nov., and H. montana, sp. nov. On the basis of their genital morphology H. curvipes Purcell, 1902, and H. nigra Tucker, 1917, are considered incertae sedis. Pionothele capensis Zonstein, 2016, was found to be conspecific with H. brevicauda and is synonymized. The genera Brachytheliscus Pocock, 1902, and Hermachola Hewitt, 1915, are revalidated and redescribed. Hermacha capensis (Ausserer, 1871) and H. crudeni Hewitt, 1913, are transferred to Hermachola. Hermachola crudeni (Hewitt, 1913), originally described from a female, and Hermachola grahami Hewitt, 1915, originally described from a male, were found to be conspecific and synonymized. A new species, Hermachola lyleae, sp. nov., is also described. New morphological characters for the diagnoses of these genera and a dichotomous key for all species considered here are provided. Known distributions are mapped and, where available, ecological data are included. With the exception of H. caudata and H. mazoena Hewitt, 1915, all species are endemic to South Africa, but further survey work in neighboring countries is needed. This work substantially improves the taxonomy of this group of spiders and provides a foundation for further investigation of the diversity and relationships of species within the region.","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"2021 1","pages":"1 - 80"},"PeriodicalIF":1.5,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44084371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Four New Species of “Hooded Tick-Spiders” (Ricinulei, Ricinoididae) from South and Central America, with Clarification of the Identity of Cryptocellus leleupi Cooreman, 1976 中南美洲“有帽蜱蛛”四新种(蓖麻目，蓖麻科)，并对leeleupi Cryptocellus的身份进行澄清，1976

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-08-25 DOI: 10.1206/3976.1

Ricardo Botero-Trujillo, L. S. Carvalho, E. Flórez D., L. Prendini

{"title":"Four New Species of “Hooded Tick-Spiders” (Ricinulei, Ricinoididae) from South and Central America, with Clarification of the Identity of Cryptocellus leleupi Cooreman, 1976","authors":"Ricardo Botero-Trujillo, L. S. Carvalho, E. Flórez D., L. Prendini","doi":"10.1206/3976.1","DOIUrl":"https://doi.org/10.1206/3976.1","url":null,"abstract":"ABSTRACT The Ricinulei Thorell, 1876, or “hooded tick-spiders,” are among the least studied arachnid orders. Knowledge of ricinuleid diversity has been slow to accumulate because these arachnids are underrepresented in biological collections. Despite an increase in the pace of new species descriptions in recent decades, the species richness of the order probably remains vastly underestimated. Large areas in some of the world's most biodiverse countries are without a single record for the order, hence new records invariably turn out to be new species. The present contribution describes four new species of the mostly South American genus Cryptocellus Westwood, 1874: Cryptocellus canutama, sp. nov., and Cryptocellus jamari, sp. nov., from Brazil; Cryptocellus islacolon, sp. nov., from Panama; and Cryptocellus macagual, sp. nov., from Colombia. Additionally, a new diagnosis and description are provided for Cryptocellus leleupi Cooreman, 1976, long considered a nomen dubium. The known locality records of the five species and their putative relatives are mapped. The present contribution raises the number of Cryptocellus species to 45 and the number of extant species of Ricinulei to 101.","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"2021 1","pages":"1 - 35"},"PeriodicalIF":1.5,"publicationDate":"2021-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47953065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Bacterial Diversity Lurking in Protist Cell Cultures Protist细胞培养中潜伏的细菌多样性

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-08-25 DOI: 10.1206/3975.1

Ameris Aponte, Yangtsho Gyaltshen, J. Burns, Aaron A. Heiss, Eunsoo Kim, Sally D. Warring

{"title":"The Bacterial Diversity Lurking in Protist Cell Cultures","authors":"Ameris Aponte, Yangtsho Gyaltshen, J. Burns, Aaron A. Heiss, Eunsoo Kim, Sally D. Warring","doi":"10.1206/3975.1","DOIUrl":"https://doi.org/10.1206/3975.1","url":null,"abstract":"Laboratory cultures of heterotrophic protists are often xenic, meaning that the culture contains more than one microbial organism. In this study, we analyzed genome-assembly data from cultures of four marine protist flagellates—the marine malawimonad Imasa heleensis , the undescribed mantamonad strain SRT-306, the discobid Ophirina amphinema , and the cryptist Palpitomonas bilix —specifically to search for genomes of cocultured bacteria. As no external bacteria have been added to the protist stock cultures, it is probable that the cocultured bacteria came from the original water samples from which the protists were isolated. At least some of these bacteria are consumed as a food source by the protists, all of which are obligate hetero-trophs. From four separate metagenomic de novo assemblies for these mixed cultures, we identified 28 scaffolds, which BUSCO analyses suggest represent complete or near-complete bacterial genomes. These scaffolds range in length from 3,139,436 to 6,090,282 bp and encode 2873 to 5666 genes. Only eight of the 28 scaffolds corresponded to entries in the NCBI genome database, meaning that 20 of these scaffolds represent genomes from putatively novel bacterial species. Our findings highlight that data like these, which are often discarded or overlooked, can be a source of novel genomes and/or species.","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46242241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Terrestrial Isopods from Spanish Amber (Crustacea: Oniscidea): Insights into the Cretaceous Soil Biota 来自西班牙琥珀的陆生等足类动物（甲壳纲：洋葱总科）：白垩纪土壤生物群的见解

IF 1.5 3区环境科学与生态学

American Museum Novitates Pub Date : 2021-08-06 DOI: 10.1206/3974.1

Alba Sánchez-García, E. Peñalver, X. Delclòs, M. Engel

{"title":"Terrestrial Isopods from Spanish Amber (Crustacea: Oniscidea): Insights into the Cretaceous Soil Biota","authors":"Alba Sánchez-García, E. Peñalver, X. Delclòs, M. Engel","doi":"10.1206/3974.1","DOIUrl":"https://doi.org/10.1206/3974.1","url":null,"abstract":"ABSTRACT Terrestrial isopods (Crustacea: Oniscidea) are a model group for studying the colonization of land. However, their fossil record is remarkably scarce and restricted to amber inclusions, and therefore amber deposits represent valuable windows to their past diversity and morphology. Here we present a new collection of 11 terrestrial isopod specimens preserved in Albian-aged amber from the Peñacerrada I outcrop, northern Spain, which collectively represent the most thoroughly documented fauna of Mesozoic Oniscidea. The three new genera and species identified belong to three of five major groups of the Oniscidea: Eoligiiscus tarraconensis, new genus and species (Ligiidae), Autrigoniscus resinicola, new genus and species (Synocheta: Trichoniscidae), and Heraclitus helenae, new genus and species (Crinocheta: Detonidae?). These taxa significantly expand the known fossil record of Oniscidea and demonstrate that considerable cladogenesis had already transpired by the Albian. The assemblage represents the earliest-known diversification of Oniscidea, extending direct evidence of terrestrialization in the group back to the late Early Cretaceous. These new taxa exhibit some characteristics that may inform hypotheses relating to general patterns of terrestrial isopod evolution. A discussion is provided about different aspects of the paleoecology and biology of the fossils compared to the Recent fauna. The new species indicate that Cretaceous isopods were a group of considerable adaptive diversity, exhibiting innovations analogous to what Recent isopods would exhibit 105 million years later.","PeriodicalId":55527,"journal":{"name":"American Museum Novitates","volume":"2021 1","pages":"1 - 32"},"PeriodicalIF":1.5,"publicationDate":"2021-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43338609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2