Additions to the description, reproduction and systematic position of the enigmatic species Acritagasyllis longichaetosus Lucas, San Martín & Sikorski, 2010 (Annelida: Phyllodocida: Syllidae)

2015 ◽  
Vol 96 (8) ◽  
pp. 1709-1716 ◽  
Author(s):  
Alessandra Rivolta ◽  
Guillermo San Martín ◽  
Andrey Sikorski
Keyword(s):  
Phylogenetic Analysis ◽  
Morphological Characteristics ◽  
Original Description ◽  
Systematic Position ◽  
Pharyngeal Tooth ◽  
Additional Information ◽  
New Information ◽  
New Diagnosis ◽  
First Time ◽  
San Martín

We present some additional information to Acritagasyllis longichaetosus Lucas, San Martín & Sikorski 2010, the only representative of an enigmatic genus of Syllidae from subpolar areas off Norway, based on two newly found specimens and one male and another female stolons. The armature of the pharynx was incorrectly interpreted in the original description, having in fact a trepan instead of a single pharyngeal tooth as originally described. The reproductive stolons are herein described for the first time. With this new information we performed a maximum parsimony phylogenetic analysis that placed this genus within the subfamily Autolytinae, despite its peculiar morphological characteristics. For this reason, we propose a new diagnosis to the genus Acritagasyllis as well as a modified diagnosis of the subfamily Autolytinae.

Rediscovery of Dacrymyces pezizoides (Dacrymycetes, Basidiomycota) 80 years after its original description

Phytotaxa ◽  
2018 ◽  
Vol 371 (5) ◽  
pp. 293 ◽  
Author(s):  
TAKASHI SHIROUZU ◽  
KOJIN SANJO
Keyword(s):  
Phylogenetic Analysis ◽  
Morphological Characteristics ◽  
Original Description ◽  
Fruiting Bodies ◽  
Its Regions ◽  
Molecular Phylogenetic ◽  
The Dead ◽  
First Time ◽  
Warm Temperate ◽  
Lsu Nrdna

Dacrymyces pezizoides has been rediscovered for the first time since its original description in 1939. Dacrymycetous fruiting bodies recently collected from the dead branches of broad-leaved trees in Japan were identified as D. pezizoides based on their morphological characteristics, i.e., turbinate or discoid basidiocarps, hyphae without clamp connections, thick-walled marginal hyphae, and 3-septate basidiospores. Molecular phylogenetic analysis based on the LSU nrDNA and ITS regions revealed that D. pezizoides forms a clade with other Dacrymyces spp., such as D. stillatus and D. chrysospermus, and Guepiniopsis buccina. Dacrymyces pezizoides is considered to form basidiocarps in autumn on the dead branches of broad-leaved trees in warm-temperate areas of Japan.

The phylogenetic relationships of the two-winged South American Leptophlebiidae genera revisited with first description of the male imago of Bessierus Thomas & Orth (Insecta: Ephemeroptera)

Zootaxa ◽  
2019 ◽  
Vol 4674 (3) ◽  
pp. 375-385
Author(s):  
EDUARDO DOMÍNGUEZ ◽  
MARÍA GABRIELA CUEZZO ◽  
SIMÓN CLAVIER
Keyword(s):  
Sister Group ◽  
Sister Group Relationship ◽  
South American ◽  
Phylogenetic Hypothesis ◽  
New Information ◽  
Statistical Support ◽  
The Stability ◽  
New Diagnosis ◽  
Relationship Of ◽  
First Time

Four of the 43 genera of South American Leptophlebiidae are dipterous. A previous phylogenetic hypothesis supported that clade Askola+Hagenulopsis, and that Bessierus+Perissophlebiodes, are sister groups of the Farrodes complex. Adults of Bessierus and Perissophlebiodes were not known but posteriorly Perissophlebiodes male imago was described. Here, we describe the male imago of Bessierus for the first time. Both genera share, besides the absence of the hind wings, the asymmetrical fork of MA, symmetrical fork of MP, dissimilar tarsal claws, and forceps sockets fused. Along with the description of the imago, a new diagnosis for the genus Bessierus is presented, also updating the identification key with this new information. A new cladistics analysis is performed to test the stability of the proposed relationships of these four genera within Leptophlebiidae. We obtained a single cladistic hypothesis where the addition of Bessierus adult characters resulted in new synapomorphies for the (Bessierus, Perissophlebiodes) clade, and improved its clade statistical support. The fused forceps sockets resulted in a synapomorphy uniting Bessierus, Perissophlebiodes and Simothraulopsis. As a result of this new analysis, the hypothesis of independent losses of the hind wings in the two dipterous groups studied is supported. The Farrodes lineage is not supported as proposed in previous studies, being restricted only to (Farrodes (Simothraulopsis, Homothraulus)) while the identity of “Perissophlebiodes lineage” is supported. The sister group relationship of Rondophlebia is not clearly defined. 

scholarly journals Two newly recorded invasive alien ascidians (Chordata, Tunicata, Ascidiacea) based on morphological and molecular phylogenetic analysis in Korea

Zootaxa ◽  
2012 ◽  
Vol 3368 (1) ◽  
pp. 211 ◽  
Author(s):  
JOOYEON PYO ◽  
TAEKJUN LEE ◽  
SOOK SHIN
Keyword(s):  
Invasive Species ◽  
Phylogenetic Analysis ◽  
Molecular Analysis ◽  
Phylogenetic Relationships ◽  
18S Rdna ◽  
Morphological Characteristics ◽  
Korea Strait ◽  
Molecular Phylogenetic ◽  
Distinct Features ◽  
First Time

We report five alien ascidians with some distinct features that were investigated from August 2009 to October 2011 in Korea, among which Ascidiella aspersa (Müller, 1776) belonging to family Ascidiidae of order Phlebobranchia and Molgula manhattensis (De Kay, 1843) belonging to family Molgulidae of order Stolidobranchia are newly discovered invasive species. These ascidians were identified and their phylogenetic relationships were clarified through molecular analysis using about 680 bp of nuclear 18S rDNA and about 670 bp of mt-COI genes along with detailed morphological characteristics, and reported for the first time in Korea. It was discovered that A. aspersa was widespread three coastlines of Korea except Jeju Island, and M. manhattensis first found in Mokpo, Gunsan, and Incheon in June 2010 extended into Busan of Korea Strait in 2011.

Microperla qinlinga Chen reviewed with supplementary illustrations and the description of the nymph

Zootaxa ◽  
2019 ◽  
Vol 4706 (3) ◽  
pp. 427-438
Author(s):  
QING-BO HUO ◽  
YU-ZHOU DU
Keyword(s):  
Original Description ◽  
Additional Information ◽  
First Time

Microperla qinlinga Chen, 2019 was recently described, but details of the aedeagus were not included in the original description. In this paper, the male aedeagus and nymph of M. qinlinga are described for the first time. Additional information concerning the genus Microperla Chu, 1928 is discussed.

Description of adults and larvae of Orientelmis parvula (Nomura & Baba, 1961) (Coleoptera: Elmidae) with their molecular phylogenetic analysis

Zootaxa ◽  
2019 ◽  
Vol 4568 (3) ◽  
pp. 483 ◽  
Author(s):  
MASAKAZU HAYASHI ◽  
HIROYUKI YOSHITOMI ◽  
YUUKI KAMITE ◽  
TAKUYA KOBAYASHI ◽  
TEIJI SOTA
Keyword(s):  
Phylogenetic Analysis ◽  
Electron Microscope ◽  
Systematic Position ◽  
Larval Morphology ◽  
Mitochondrial Coi ◽  
Rare And Endangered Species ◽  
Molecular Phylogenetic ◽  
Rare And Endangered ◽  
First Time ◽  
Scanning Electron

The elmid beetle Orientelmis parvula (Nomura & Baba, 1961) is a rare and endangered species in Japan. Mouth parts and genitalia in adults of both sexes and larval morphology are described based on scanning electron microscope observations. The larva of the genus Orientelmis Shepard, 1998 is described for the first time. The systematic position of the genus is discussed based on the morphology and a phylogenetic tree inferred from the mitochondrial COI, and nuclear ArgK and 18S gene sequences. A new key for larvae of known species and genera of Japanese Elmidae is given. 

The morphology of free-living stages and immature parasites of Rhabdias paraensis (Nematoda: Rhabdiasidae), a parasite of Rhinella marina (Anura: Bufonidae) in Brazil

2016 ◽  
Vol 61 (1) ◽  
Author(s):  
Francisco Tiago de Vasconcelos Melo ◽  
Luciana de Cássia Silva do Nascimento ◽  
Lilian Cristina Macedo ◽  
Jeannie Nascimento dos Santos ◽  
Yuriy Kuzmin
Keyword(s):  
Life Cycle ◽  
Buccal Capsule ◽  
Original Description ◽  
Species Determination ◽  
Free Living ◽  
Rhinella Marina ◽  
Additional Information ◽  
New Information ◽  
Apical View

AbstractRhabdias paraensis Santos, Melo, Nascimento, Nascimento, Giese et Furtado, 2011 was described based on fully gravid worms. Further investigations on the free-living stages, immature worms and young individuals were facilitated by cultivation in the laboratory, which allowed us to add new information about the morphology and development of the species. Observations on the free-living development of R. paraensis showed that the life cycle is typical of Rhabdias, with alternation of gonochoristic and hermaphroditic generations and without homogony. Males of the free-living generation were different from those in several species of the genus studied previously. In the original description, the excretory glands and duct were absent in gravid specimens of R. paraensis, while in this study, distinct excretory glands and a duct were observed in immature and young individuals. Additionally, we recognised the separation of the buccal capsule walls into anterior and posterior portions and described the specific shapes of these portions in lateral and apical view. Studies on the morphology and development of free-living stages of Rhabdias spp. from Neotropical regions may provide additional information for species determination.

scholarly journals Morphological characteristics and DNA sequence analysis of Petriella setifera and Oidiodendron setiferum from twigs of diseased oak

2014 ◽  
Vol 40 (2) ◽  
pp. 267-275 ◽  
Author(s):  
Hanna Kwaśna ◽  
Piotr Łakomy ◽  
Andrzej Łabędzki
Keyword(s):  
Sequence Analysis ◽  
Dna Sequence ◽  
Morphological Characteristics ◽  
Original Description ◽  
Quercus Petraea ◽  
Oak Decline ◽  
Agar Culture ◽  
Sessile Oak ◽  
Thin Walled ◽  
First Time

Examination of isolates of <i>Petriella setifera</i> and <i>Oidiodendron setiferum</i> revealed new diagnostic morphological charactcristics. Chlamydosporcs formed by <i>P. setifera</i>, isolated from twigs of sessile oak (<i>Quercus petraea</i>) showing symptoms of oak decline, are described for the first time. The first pictures of <i>P. setifera</i> anamorphs since the publication of its original description in 1912 are presented. Isolates of <i>O. setiferum</i>, from sessile oak twigs and from a log of Scots pine (<i>Pinus sylvestris</i>), were found to have swollen, hyaline, thin-walled, sterile apices on the non-fertile hairs surrounding the fertile heads of conidiophores. They also had numerous coils formed by thin hyphae in the submerged mycelium in agar culture. The taxonomy of both fungi was confirmed by rDNA sequence analysis.

scholarly journals The South African genus Lepthercus Purcell, 1902 (Araneae: Mygalomorphae): phylogeny and taxonomy 

Zootaxa ◽  
2020 ◽  
Vol 4766 (2) ◽  
pp. 261-305
Author(s):  
DUNIESKY RÍOS-TAMAYO ◽  
ROBIN LYLE
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
South African ◽  
Morphological Characters ◽  
Optimality Criteria ◽  
Distribution Maps ◽  
New Diagnosis ◽  
First Time ◽  
New Distribution ◽  
African Genus

After more than a century, the genus Lepthercus Purcell, 1902 is revised. Lepthercus dregei Purcell, 1902 and L. rattrayi Hewitt, 1917 are redescribed; with the female of L. dregei described for the first time. Nine new species of Lepthercus are described. A phylogenetic analysis with morphological characters using implied weights and parsimony as optimality criteria, suggests the separation of the genus in two clades. The first clade is formed by L. dippenaarae sp. nov., L. engelbrechti sp. nov., L. haddadi sp. nov., L. rattrayi Hewitt, 1917 and L. sofiae sp. nov., here denominated “Group haddadi”. The species L. confusus sp. nov., Lepthercus dregei Purcell, 1902, Lepthercus filmeri sp. nov., Lepthercus kwazuluensis sp. nov., Lepthercus lawrencei sp. nov. and Lepthercus mandelai sp. nov., form the second clade, here denominated “Group dregei”. The “Group haddadi” is characterized by males with a curved metatarsus I, and a swollen tibia I. The “Group dregei” is supported by the presence of small maxillary cuspules in males. A new diagnosis is provided for Lepthercus as well as an identification key for all species of the genus. New distribution maps for the genus in the country are also presented. 

scholarly journals New Information on the Madagascan Middle Jurassic Sauropod Lapparentosaurus madagascariensis

Geosciences ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 498
Author(s):  
Miky Lova Tantely Raveloson ◽  
Neil D. L. Clark ◽  
Armand H. Rasoamiaramana
Keyword(s):  
Middle Jurassic ◽  
Hind Limb ◽  
Axial Skeleton ◽  
Systematic Position ◽  
Full Description ◽  
Neural Spine ◽  
Additional Information ◽  
New Information ◽  
Bone Fragments ◽  
The Common

The systematic position of the Middle Jurassic sauropod Lapparentosaurus madagascariensis is not fully understood due to a lack of useful anatomical detail. Despite many new bone fragments from the axial skeleton, post-cranial skeleton, and a hind limb having been previously unearthed, its systematic position has not yet been satisfactorily established. Although this Malagasy taxon is only recognised by two autapomorphies located in the scapula and coracoid, two features of the neural spine, which are reported here, provide additional information on the common autapomorphies shared with the British genus Cetiosaurus. A full description of the femur and neural spine helps to determine some aspects of its relationship to other similar taxa. Remains of Lapparentosaurus madagascariensis have been recovered from mixed facies that may have been deposited in a shallow water lagoon during a transgressive period in the Isallo IIIb subunit in the Majunga Basin.

An emended description of Stemphylium amaranthi with its first record for Iran mycobiota

Phytotaxa ◽  
2018 ◽  
Vol 371 (2) ◽  
pp. 93
Author(s):  
ALIREZA POURSAFAR ◽  
YOUBERT GHOSTA ◽  
MOHAMMAD JAVAN-NIKKHAH
Keyword(s):  
Morphological Characteristics ◽  
First Record ◽  
Its Rdna ◽  
Morphological Identification ◽  
Sexual Morph ◽  
Species Circumscription ◽  
New Information ◽  
Emended Description ◽  
First Time

Stemphylium amaranthi was originally described from the leaves of Amaranthus retroflexous in China based only on asexual morphological characteristics. New collections of S. amaranthi from wheat and barley plants with symptoms of black (sooty) head mould in Golestan and Qazvin Provinces, Iran, revealed abundant formation of a sexual morph. The morphological identification was confirmed by sequences obtained from ITS-rDNA and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) genomic loci. New information on the sexual morph of S. amaranthi is provided and the species circumscription is emended. Wheat and barley are reported as new substrates for S. amaranthi, and this species is recorded for the first time in Iran.

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