scholarly journals Further study of two Chinese cave spiders (Araneae, Mysmenidae), with description of a new genus

ZooKeys ◽  
2019 ◽  
Vol 870 ◽  
pp. 77-100
Author(s):  
Chengcheng Feng ◽  
Jeremy A. Miller ◽  
Yucheng Lin ◽  
Yunfei Shu
Keyword(s):  
Phylogenetic Analysis ◽  
Dna Sequences ◽  
New Genus ◽  
Western Hemisphere ◽  
Current Paper ◽  
Phylogenetic Position ◽  
Spider Species ◽  
The Creation ◽  
First Time ◽  
New Evidence

The current paper expands knowledge of two Chinese cave spider species originally described in the genus Maymena Gertsch, 1960: M. paquini Miller, Griswold & Yin, 2009 and M. kehen Miller, Griswold & Yin, 2009. With the exception of these two species, the genus Maymena is endemic to the western hemisphere, and new evidence presented here supports the creation of a new genus for the Chinese species, which we name Yamanetagen. nov. The male of Y. kehen is described for the first time. Detailed illustrations of the habitus, male palps and epigyne are provided for these two species, as well as descriptions of their webs. DNA sequences are provided for both Yamaneta species. We build on a previously published phylogenetic analysis of Mysmenidae to assess the phylogenetic position of Yamaneta and its relationship to true Maymena.

scholarly journals First records and a new genus of comb-tailed spiders (Araneae: Hahniidae) from Thailand with comments on the six-eyed species of this family

2020 ◽  
Vol 724 ◽  
Author(s):  
Francisco Andrés Rivera-Quiroz ◽  
Booppa Petcharad ◽  
Jeremy A. Miller
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
New Genus ◽  
New Combination ◽  
Phylogenetic Position ◽  
The Novel ◽  
Novel Genus ◽  
The Family ◽  
Two New Species ◽  
First Time

The family Hahniidae is reported from Thailand for the first time. The genus Hexamatia gen. nov. and two new species, Hexamatia seekhaow gen. et sp. nov. and Hahnia ngai sp. nov., are described and illustrated. DNA sequences are provided for all the species reported here. The phylogenetic position of the novel genus Hexamatia gen. nov. and its relation to Hahnia are discussed. Based on these results, a new combination is proposed for Hexamatia senaria (Zhang, Li & Zheng, 2011) gen. et comb. nov. = Hahnia senaria. Known distribution of the species Hahnia saccata Zhang, Li & Zheng, 2011, originally described from China, is expanded. A brief review and notes on the taxonomy of the six-eyed hahniids are included.

A cladistic revision of Tortopus Needham & Murphy with description of the new genus Tortopsis (Ephemeroptera: Polymitarcyidae)

Zootaxa ◽  
2010 ◽  
Vol 2481 (1) ◽  
Author(s):  
CARLOS MOLINERI
Keyword(s):  
Phylogenetic Analysis ◽  
Fore Wing ◽  
Type Species ◽  
New Genus ◽  
Lateral View ◽  
Median Line ◽  
Male And Female ◽  
Line Drawings ◽  
Neotropical Species ◽  
First Time

The 12 species previously placed in Tortopus together with 3 species newly described here, are revised and included in a phylogenetic analysis. Based on synapomorphic characters on the nymphs and adults of both sexes, Tortopus is restricted to T. igaranus Needham & Murphy, T. circumfluus Ulmer, T. harrisi Traver, T. zottai (Navás), T. bellus Lugo-Ortiz & McCafferty, and T. arenales sp. nov., and the genus is defined by: female parastyli receptors with long furrows anterior to sockets; penes entirely flattened; male ninth abdominal sternum almost separated in two portions by a median notch; mesosternum with furcasternal protuberances contiguous only on basal corner; and nymphs with two subapical tubercles on mandibular tusks. Tortopsis is newly described for T. bruchianus (Navás), T. limoncocha sp. nov., T. obscuripennis (Domínguez), T. parishi (Banks), T. primus (McDunnough), T. puella (Pictet), T. sarae (Domínguez), T. spatula sp. nov., and T. unguiculatus (Ulmer). Tortopsis is characterized by: R sector of female fore wing without additional veins between R 2 and IR; female parastyli receptors C or V-shaped, with sockets opening towards median line; male gonopore associated with a claw-like structure; penes separated from the base; parastyli more than 5 times length of pedestals; parastyli curved in lateral view; nymphs with a single subapical tubercle on mandibular tusks. The study of available type material permitted inclusion of comparative diagnoses, with figures and redescriptions as needed. The male imago of the type species of Tortopus (T. igaranus Needham & Murphy) is described for the first time, as are the female adults of Tortopus bellus Lugo-Ortiz & McCafferty and T. harrisi Traver. Three new Neotropical species based on male and female adults are described: Tortopus arenales and Tortopsis limoncocha from Ecuador, and Tortopsis spatula from Colombia. Keys to separate the adults and nymphs of the genera of Polymitarcyidae, and for male and female adults of all the species of Tortopus and Tortopsis are presented, as well as line drawings, pictures and SEM photographs of important structures.

The enigmatic diapsid Acerosodontosaurus piveteaui (Reptilia: Neodiapsida) from the Upper Permian of Madagascar and the paraphyly of “younginiform” reptiles

2009 ◽  
Vol 46 (9) ◽  
pp. 651-661 ◽  
Author(s):  
Constanze Bickelmann ◽  
Johannes Müller ◽  
Robert R. Reisz
Keyword(s):  
Phylogenetic Analysis ◽  
Data Matrix ◽  
Upper Permian ◽  
Phylogenetic Position ◽  
Ancestral Condition ◽  
Phylogenetic Data ◽  
First Time ◽  
Evolutionary Lineages

A restudy of the Upper Permian diapsid Acerosodontosaurus piveteaui from Madagascar indicates that the bone formerly identified as the quadratojugal is a fragment of a rib. This in turn implies that, in contrast to previous studies, the lower temporal arcade must be considered incomplete and derived relative to the ancestral condition. Since the phylogenetic position of Acerosodontosaurus is poorly understood, the taxon was entered into a modified phylogenetic data matrix of diapsid reptiles, and the purported monophyly of “Younginiformes” was tested for the first time by including all potential members of the clade as separate taxa, as well as other taxa from the same deposits. The results of the phylogenetic analysis do not support the monophyly of “younginiform” reptiles. Instead, most taxa cluster unresolved at the base of Neodiapsida, a finding that has important implications for the understanding of early diapsid evolution because it suggests that early neodiapsids represent several distinct evolutionary lineages. Acerosodontosaurus and Hovasaurus do form a clade, a finding consistent with the stratigraphic age and biogeography of these taxa.

scholarly journals First Anthomyzidae (Diptera) from China: a new genus, six new species and new records

2018 ◽  
Vol 58 (1) ◽  
pp. 35-76 ◽  
Author(s):  
Jindřich Roháček
Keyword(s):  
New Species ◽  
East Asia ◽  
Dna Sequences ◽  
New Genus ◽  
New Records ◽  
Molecular Barcoding ◽  
The Family ◽  
First Time

The family Anthomyzidae (Diptera: Acalyptrata) is recorded from China for the first time based on 11 species, 6 of them new to science. A distinctive new genus Marshallya gen. nov. is described, based on single peculiar species, M. platythorax sp. nov. (both sexes) from Sichuan. Other new species, viz. Amygdalops sevciki sp. nov. (Hainan I.) (both sexes), Epischnomyia tkoci sp. nov. (Sichuan) (male only), Anthomyza ornata sp. nov. (Sichuan) (female only), Anthomyza sulphurea sp. nov. (Yunnan) (both sexes) and Arganthomyza hyperseta sp. nov. (Shaanxi) (male only) are described and illustrated in detail. Male-female association of two Amygdalops species is clarified by means of molecular barcoding and the female of A. bisinus Roháček, 2008 is correctly identifi ed and described. Relationships of all these taxa are discussed. Five species, viz. Amygdalops bisinus (Hainan I.), Epischnomyia merzi Roháček, 2009, Anthomyza cuneata Roháček, 1987, Anthomyza trifurca Sueyoshi & Roháček, 2003 (all from Sichuan) and Arganthomyza versitheca Roháček, 2009 (Shaanxi, Sichuan) are new additions to the Chinese fauna of Anthomyzidae. DNA sequences of the barcoding region of COI have been obtained for 3 species, Amygdalops bisinus, Amygdalops sevciki and Marshallya platythorax. Biology and distribution of all 11 species are discussed. First photographs of living Anthomyzidae from East Asia are presented. Based on knowledge of Anthomyzidae from neighbouring areas the diversity of the Chinese fauna of the family is estimated to include 50-60 species.

A phylogenetic revision of Calydna and relatives (Lepidoptera: Riodinidae)

2002 ◽  
Vol 33 (2) ◽  
pp. 185-237 ◽  
Author(s):  
Jason P.W. Hall
Keyword(s):  
Phylogenetic Analysis ◽  
New Genus ◽  
Male And Female ◽  
Basal Clade ◽  
Two New Species ◽  
Group A ◽  
Species Groups ◽  
First Time ◽  
The Relationship ◽  
Phylogenetic Revision

AbstractA phylogenetic revision of the Neotropical riodinid genus Calydna Doubleday and relatives is presented. A phylogenetic analysis for all twenty species of Calydna using thirty-eight characters of adult morphology generated four most parsimonious cladograms. Calydna is characterised to contain eighteen species, divided here into three monophyletic species groups with the relationship caieta group + (thersander group + hiria group). A new genus Echydna Hall gen. n. is described for the most basal clade, containing chaseba Hewitson and punctata C. & R. Felder, which are transferred from Calydna (combs. n.). The taxonomy, morphology, biogeography and biology of both genera are discussed, locality data is listed and mapped, and the adults and male and female genitalia are illustrated for all species. Concealed male abdominal androconial scales, which phylogenetically unite the thersander and hiria groups, are reported for the first time outside of the tribes Symmachiini and Nymphidiini. Two new species are described, Calydna jeannea sp. n. and Calydna nicolayi sp. n., and the replacement name fissilisima is provided for the unavailable name fissilis Stichel; maculosa Bates is transferred from Calydna to Callistium Stichel (comb. n.).

scholarly journals First nearly complete skull of Gallotia auaritae (lower-middle Pleistocene, Squamata, Gallotiinae) and a morphological phylogenetic analysis of the genus Gallotia

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Penélope Cruzado-Caballero ◽  
Carolina Castillo Ruiz ◽  
Arnau Bolet ◽  
Juan Ramón Colmenero ◽  
Julio De la Nuez ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Cranial Morphology ◽  
Middle Pleistocene ◽  
Phylogenetic Position ◽  
Fossil Species ◽  
La Palma ◽  
Computed Microtomography ◽  
X Ray Computed ◽  
Cranial Osteology ◽  
First Time

Abstract The Canary Islands are an Atlantic archipelago known for its high number of endemic species. Among the most known endemic vertebrate species are the giant lizards of the genus Gallotia. We describe the cranial osteology of the first almost complete and articulated fossil skull of the taxon Gallotia auaritae, recovered from the lower-middle Pleistocene of the La Palma island. In this work, X-ray computed microtomography images were used to perform an exhaustive phylogenetic analysis where most of the extant and fossil species of the genus Gallotia were included for first time. This analysis recovered a monophyletic Gallotia clade with similar topology to that of molecular analyses. The newly described specimen shares some characters with the group formed by G. bravoana, G. intermedia and G. simonyi, G. auaritae, and its position is compatible with a referral to the latter. Our study adds new important data to the poorly known cranial morphology of G. auaritae, and the phylogenetic analysis reveals an unexpected power of resolution to obtain a morphology-based phylogeny for the genus Gallotia, for inferring the phylogenetic position of extinct species and for helping in the identification of fossil specimens.

scholarly journals Phylogeny of the Eocene Antarctic Tapetinae Gray, 1851 (Bivalvia, Veneridae) from the La Meseta and Submeseta formations

2020 ◽  
Vol 94 (5) ◽  
pp. 799-818
Author(s):  
Maximiliano Jorge Alvarez ◽  
Claudia Julia del Río
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
New Genus ◽  
Late Eocene ◽  
New Combination ◽  
New Genera ◽  
Systematic Analysis ◽  
Antarctic Species ◽  
The Antarctic ◽  
First Time

AbstractSystematic analysis shows that the Southern Hemisphere bivalve genus Retrotapes includes the Antarctic species R. antarcticus, R. newtoni, and R. robustus and recognizes for the first time the presence of Katelysia represented by K. florentinoi. Two new genera were erected in this study: Marciachlys new genus to include M. inflata new combination, and Adelfia new genus, which includes A. austrolissa new combination and A. omega new species from the Eocene of Antarctica, and the late Eocene Chilean A. arenosa new combination. Eurhomalea carlosi was synonymized with K. florentinoi; Cyclorismina marwicki with R. antarcticus; Gomphina iheringi was considered an indeterminate species; and Cockburnia lunulifera was excluded from the Tapetinae. These systematic assignments are supported by a phylogenetic analysis, which recognizes an Austral clade of Tapetinae, comprising all the genera mentioned above, along with Marcia, Paleomarcia, Atamarcia, and Protapes.UUID: http://zoobank.org/a8c91a9f-99ec-4235-8416-d398771a3eb2

scholarly journals Molecular and Phenotypic Descriptions of Cystodermella cinnabarina from Western Himalaya: A New Genus for Pakistan

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Abdul Razaq ◽  
Sobia Ilyas ◽  
Abdul Nasir Khalid
Keyword(s):  
Phylogenetic Analysis ◽  
North America ◽  
New Genus ◽  
Western Himalaya ◽  
Molecular Data ◽  
Internal Transcribed Spacers ◽  
Northern Europe ◽  
Pakistani Population ◽  
Morphological And Molecular Data ◽  
First Time

Cystodermella cinnabarina is reported here for the first time from the moist temperate forests of western Himalaya and is the first collection of a Cystodermella from Pakistan. This species is redescribed here using morphological and molecular data. The phylogenetic analysis which is based on internal transcribed spacers (ITS) showed that the Pakistani collection clustered distinctly with similar European sequences in the Cystodermella clade. The Italian and north European sequences of this species clustered in two separate subclades and the Pakistani sequences closely matched the Italian sequences. It is evident that the Pakistani population has a very close evolutionary affinity with the Italian individuals rather than those from northern Europe. The species is distributed in Europe, in North America, and now in the western Himalaya of Asia.

Allonautilus: a new genus of living nautiloid cephalopod and its bearing on phylogeny of the Nautilida

1997 ◽  
Vol 71 (6) ◽  
pp. 1054-1064 ◽  
Author(s):  
Peter D. Ward ◽  
W. Bruce Saunders
Keyword(s):  
Phylogenetic Analysis ◽  
Reproductive System ◽  
New Genus ◽  
Male Reproductive System ◽  
Late Cenozoic ◽  
Extant Species ◽  
Single Genus ◽  
Gill Morphology ◽  
First Time

Living ectocochliate cephalopods have long been thought to be restricted to a single genus, Nautilus Linnaeus, 1758, comprising five or six extant species. The shells of two species, N. scrobiculatus Lightfoot, 1786, and N. perforatus Conrad, 1847, are quite distinct, but no soft-parts were known until 1984, when N. scrobiculatus was seen alive for the first time. Dissections show that significant anatomical differences exist between N. scrobiculatus and other Nautilus species, including differences in gill morphology and details of the male reproductive system. These differences, along with phylogenetic analysis of extant and selected fossil nautiloid species, indicate that N. scrobiculatus, and N. perforatus should be distinguished from Nautilus as a newly defined genus, Allonautilus. This analysis contradicts previous phylogenies proposed for the Nautilida, which placed Nautilus as the last-evolved member of the order. We surmise that Allonautilus is a descendent of Nautilus, that the latter is paraphyletic, and first evolved in the Mesozoic, rather than in the late Cenozoic, as has been previously suggested.

Cryptophaea, a new genus of byssoid Arthoniaceae (lichenized Ascomycota) and its phylogenetic position

Phytotaxa ◽  
2016 ◽  
Vol 261 (2) ◽  
pp. 168 ◽  
Author(s):  
DRIES VAN DEN BROECK ◽  
DAMIEN ERTZ
Keyword(s):  
Phylogenetic Analysis ◽  
New Genus ◽  
The Other ◽  
Congo Basin ◽  
Phylogenetic Position

Cryptophaea, a new corticolous lichen genus, is described from the Congo basin as belonging to the cryptothecioid Arthoniaceae. It is characterized by (1) maculiform, tomentose, brownish ascomata lacking a distinct exciple, (2) the absence of a distinct hamathecium of paraphysoids, (3) a byssoid crustose thallus with a trentepohlioid photobiont, (4) greyish to brown (sub)muriform ascospores and (5) the presence of parietin, an anthraquinone, absent in the other cryptothecioid Arthoniaceae. At this moment the new genus is represented by only one species, Cryptophaea phaeospora sp. nov. A phylogenetic analysis of mtSSU and RPB2 sequences shows Cryptophaea as sister genus to Glomerulophoron in the cryptothecioid Arthoniaceae.

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