scholarly journals Taxonomic reassessment of the Indo-Pacific Scytosiphonaceae (Phaeophyceae): Hydroclathrus rapanuii sp. nov. and Chnoospora minima from Easter Island, with proposal of Dactylosiphon gen. nov. and Pseudochnoospora gen. nov.

2018 ◽  
Vol 61 (1) ◽  
pp. 47-64 ◽  
Author(s):  
Wilfred John E. Santiañez ◽  
Erasmo C. Macaya ◽  
Kyung Min Lee ◽  
Ga Youn Cho ◽  
Sung Min Boo ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Phylogenetic Analyses ◽  
Easter Island ◽  
New Genera ◽  
Monotypic Genus ◽  
Southeastern Pacific ◽  
Molecular Phylogenetic ◽  
Thin Membranes ◽  
Hydroclathrus Clathratus ◽  
Molecular Phylogenetic Data

AbstractA new and putatively endemic species ofHydroclathrus,Hydroclathrus rapanuii, is described from the geographically isolated Easter Island in the southeastern Pacific based on morphological and molecular phylogenetic data. It is distinguished from otherHydroclathrusby thalli of unevenly furrowed thin membranes, and angular, block-like plurangial sori. Our phylogenetic analyses indicated thatH. rapanuiiis closely related to the generitypeHydroclathrus clathratus. We also report on the morphology and phylogeny ofChnoospora minimafrom Easter I. and elsewhere in the Indo-Pacific Ocean, noting the previously unreported presence of hollow portions in its medulla. Although not collected from Easter I., we herein propose the recognition of two new genera,Dactylosiphongen. nov. andPseudochnoosporagen. nov., based on our three-gene phylogeny and their known morphologies and anatomies.Dactylosiphonis based on the three species currently assigned toColpomenia(C. bullosa,C. durvillei, andC. wynnei) that are genetically and morphologically (i.e. thalli with erect and finger-like tubes arising from a common saccate base) distinct from other members ofColpomenia. The monotypic genusPseudochnoosporais represented by the decumbent, branching, and inter-adhesive species currently known asChnoospora implexa. With the above proposals, we further increase the genus-level diversity of Scytosiphonaceae in the Indo-Pacific Ocean.

scholarly journals A revision of dragon millipedes I: genus Desmoxytes Chamberlin, 1923, with the description of eight new species (Diplopoda, Polydesmida, Paradoxosomatidae)

ZooKeys ◽  
2018 ◽  
Vol 761 ◽  
pp. 1-177 ◽  
Author(s):  
Ruttapon Srisonchai ◽  
Henrik Enghoff ◽  
Natdanai Likhitrakarn ◽  
Somsak Panha
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Present Article ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
New Genera ◽  
Distribution Maps ◽  
New Synonyms ◽  
Molecular Phylogenetic ◽  
First Time

The dragon millipede genusDesmoxytess.l. is split into five genera, based on morphological characters and preliminary molecular phylogenetic analyses. The present article includes a review ofDesmoxytess.s., while future articles will deal withHylomusCook and Loomis, 1924 and three new genera which preliminarily are referred to as the ‘acantherpestes’, ‘gigas’, and ‘spiny’ groups. Diagnostic morphological characters of each group are discussed.Hylomusis resurrected as a valid genus and the following 33 species are assigned to it:H.asper(Attems, 1937),comb. n.,H.cattienensis(Nguyen, Golovatch & Anichkin, 2005),comb. n.,H.cervarius(Attems, 1953),comb. n.,H.cornutus(Zhang & Li, 1982),comb. n.,H.dracoCook & Loomis, 1924,stat. rev.,H.enghoffi(Nguyen, Golovatch & Anichkin, 2005),comb. n.,H.eupterygotus(Golovatch, Li, Liu & Geoffroy, 2012),comb. n.,H.getuhensis(Liu, Golovatch & Tian, 2014),comb. n.,H.grandis(Golovatch, VandenSpiegel & Semenyuk, 2016),comb. n.,H.hostilis(Golovatch & Enghoff, 1994),comb. n.,H.jeekeli(Golovatch & Enghoff, 1994),comb. n.,H.lingulatus(Liu, Golovatch & Tian, 2014),comb. n.,H.laticollis(Liu, Golovatch & Tian, 2016),comb. n.,H.longispinus(Loksa, 1960),comb. n.,H.lui(Golovatch, Li, Liu & Geoffroy, 2012),comb. n.,H.minutuberculus(Zhang, 1986),comb. n.,H.nodulosus(Liu, Golovatch & Tian, 2014),comb. n.,H.parvulus(Liu, Golovatch & Tian, 2014),comb. n.,H.phasmoides(Liu, Golovatch & Tian, 2016),comb. n.,H.pilosus(Attems, 1937),comb. n.,H.proximus(Nguyen, Golovatch & Anichkin, 2005),comb. n.,H.rhinoceros(Likhitrakarn, Golovatch & Panha, 2015),comb. n.,H.rhinoparvus(Likhitrakarn, Golovatch & Panha, 2015),comb. n.,H.scolopendroides(Golovatch, Geoffroy & Mauriès, 2010),comb. n.,H.scutigeroides(Golovatch, Geoffroy & Mauriès, 2010),comb. n.,H.similis(Liu, Golovatch & Tian, 2016),comb. n.,H.simplex(Golovatch, VandenSpiegel & Semenyuk, 2016),comb. n.,H.simplipodus(Liu, Golovatch & Tian, 2016),comb. n.,H.specialis(Nguyen, Golovatch & Anichkin, 2005),comb. n.,H.spectabilis(Attems, 1937),comb. n.,H.spinitergus(Liu, Golovatch & Tian, 2016),comb. n.,H.spinissimus(Golovatch, Li, Liu & Geoffroy, 2012),comb. n.andH.variabilis(Liu, Golovatch & Tian, 2016),comb. n.Desmoxytess.s. includes the following species:D.breviverpaSrisonchai, Enghoff & Panha, 2016;D.cervina(Pocock,1895);D.delfae(Jeekel, 1964);D.desSrisonchai, Enghoff & Panha, 2016;D.pinnasqualiSrisonchai, Enghoff & Panha, 2016;D.planata(Pocock, 1895);D.purpuroseaEnghoff, Sutcharit & Panha, 2007;D.takensisSrisonchai, Enghoff & Panha, 2016;D.taurina(Pocock, 1895);D.terae(Jeekel, 1964), all of which are re-described based mainly on type material. Two new synonyms are proposed:DesmoxytespterygotaGolovatch & Enghoff, 1994,syn. n.(=Desmoxytescervina(Pocock, 1895)),DesmoxytesrubraGolovatch & Enghoff, 1994,syn. n.(=Desmoxytesdelfae(Jeekel, 1964)). Six new species are described from Thailand:D.aurataSrisonchai, Enghoff & Panha,sp. n.,D.corythosaurusSrisonchai, Enghoff & Panha,sp. n.,D.eurosSrisonchai, Enghoff & Panha,sp. n.,D.flabellaSrisonchai, Enghoff & Panha,sp. n.,D.golovatchiSrisonchai, Enghoff & Panha,sp. n.,D.octoconigeraSrisonchai, Enghoff & Panha,sp. n., as well as one from Malaysia:D.perakensisSrisonchai, Enghoff & Panha,sp. n., and one from Myanmar:D.waepyanensisSrisonchai, Enghoff & Panha,sp. n.The species can mostly be easily distinguished by gonopod structure in combination with other external characters; some cases of particularly similar congeners are discussed. All species ofDesmoxytess.s. seem to be endemic to continental Southeast Asia (except the ‘tramp’ speciesD.planata). Some biological observations (relationship with mites, moulting) are recorded for the first time. Complete illustrations of external morphological characters, an identification key, and distribution maps of all species are provided.

scholarly journals Seabirds of Easter Island, Salas y Gomez Island and Desventuradas Islands, southeastern Pacific Ocean

2014 ◽  
Vol 42 (4) ◽  
pp. 752-759 ◽  
Author(s):  
Marcelo A. Flores ◽  
Roberto P. Schlatter ◽  
Rodrigo Hucke Gaete
Keyword(s):  
Pacific Ocean ◽  
Easter Island ◽  
Southeastern Pacific

Melanoleuca kashmirensis sp. nov. in subg. Urticocystis from Pakistan

Phytotaxa ◽  
2020 ◽  
Vol 434 (1) ◽  
pp. 89-100
Author(s):  
ZIA ULLAH ◽  
RUBAB KHURSHED ◽  
MUHAMMAD BINYAMIN KHAN ◽  
ISRAR AHMAD ◽  
SANA JABEEN ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Morphological Features ◽  
New Taxon ◽  
Line Drawings ◽  
Phylogenetic Data ◽  
Molecular Phylogenetic ◽  
A New Species ◽  
Molecular Phylogenetic Data

During this investigation, a new species of Melanoleuca subg. Urticocystis with urticiform cheilocystidia is proposed. The identification is based on morphological characters and molecular phylogenetic analyses using ITS and 28S sequences. A comparison of the morphological features and molecular phylogenetic data with the taxa of subg. Urticocystis confirms the identity of the species as a new taxon. The detailed descriptions, line drawings and phylogenetic results are given.

Disentangling the taxonomy of the Galactia-Camptosema- Collaea complex with new generic circumscriptions in the Galactia clade (Leguminosae, Diocleae)

Neodiversity ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 56-94
Author(s):  
Luciano P. Queiroz ◽  
◽  
Ana C.S. Oliveira ◽  
Cristiane Snak
Keyword(s):  
Maximum Parsimony ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Genera ◽  
Genus Level ◽  
Phylogenetic Studies ◽  
Taxonomic History ◽  
Molecular Phylogenetic

The Galactia clade is one of three major lineages of the papilionoid legume tribe Diocleae. It comprises eight genera and approximately 140 species almost entirely restricted to the Americas. Establishing stable generic boundaries within this clade has been a challenge because of its tortuous taxonomic history and the broad polyphyly of the genera of the so-called Galactia-Camptosema-Collaea complex. Previous molecular phylogenetic studies revealed some well-supported lineages, but did not advance towards any new taxonomic arrangements. We carried out maximum parsimony and Bayesian phylogenetic analyses of a combined dataset including our previously published multilocus molecular data (nrITS and ETS and plastid trnK/matK and trnT-Y regions) and 82 morphological characters. The resulting topologies largely concur with those previously reported based on molecular data only, where Camptosema and Galactia appear as broadly polyphyletic, with species scattered among five (Camptosema) and seven (Galactia) of the twelve lineages that are newly recognized here at genus level. We are therefore proposing the following new taxonomic rearrangements within the Galactia clade: descriptions of the new genera Caetangil, Cerradicola, Mantiqueira, and Nanogalactia; resurrection of Betencourtia; and the subsuming of Neorudolphia into Rhodopis and of Camptosema sect. Macropetalum into Cratylia.

Revisionary systematics of the endemic soft coral fauna (Octocorallia: Alcyonacea: Alcyoniina) of the Agulhas Bioregion, South Africa

Zootaxa ◽  
2017 ◽  
Vol 4363 (4) ◽  
pp. 451 ◽  
Author(s):  
CATHERINE S. MCFADDEN ◽  
LEEN P. VAN OFWEGEN
Keyword(s):  
South Africa ◽  
New Species ◽  
Endemic Species ◽  
Phylogenetic Analyses ◽  
New Genera ◽  
Soft Corals ◽  
Endemic Genus ◽  
Coral Fauna ◽  
Molecular Phylogenetic ◽  
Endemic Genera

The Agulhas Bioregion of southern South Africa supports a unique octocoral fauna that is entirely endemic to the region. Recent molecular phylogenetic studies indicate that this endemism extends to deeper taxonomic levels than had previously been recognized, and that most of these endemic species belong to genera and families that are also endemic to South Africa. Here we revise the taxonomy of soft corals (subordinal group Alcyoniina) that were previously assigned to the cosmopolitan families Alcyoniidae, Nephtheidae and Nidaliidae, describing three new families endemic to South Africa, along with four new genera and four new species. We reassign the endemic genera Acrophytum, Pieterfaurea and Lampophyton to Acrophytidae n. fam, and describe a new species of Lampophyton, L. spinatum n. sp. The endemic species Protodendron bruuni is reassigned to a new, monotypic genus, Corymbophyton bruuni n. comb., and family, Corymbophytidae n. fam. The endemic genus Leptophyton is placed in a third new family, Leptophytidae n. fam., along with three new genera that are established for species previously assigned to Alcyonium: Circularius wilsoni n. comb., Porphyrophyton distinctum n. comb., and Tenerodus fallax n. comb. In addition, we describe new species of Leptophyton, L. fustis n. sp.; Tenerodus, T. pollex n. gen. n. sp.; and Alcyonium, A. dolium n. sp.; reassign Protodendron verseveldti to Tenerodus verseveldti n. comb.; and reassign the endemic genus Dimorphophyton to family Paralcyoniidae. Although molecular phylogenetic analyses unite Acrophytidae, Corymbophytidae and Leptophytidae within a well-supported monophyletic group, both morphological and molecular distinctions support maintaining them as three separate families. These revisions increase the number of endemic species of shallow-water soft corals known from the Agulhas Bioregion to 40, and the number of endemic genera to 13. 

scholarly journals First report of an egg-predator nemertean worm in crabs from the south-eastern Pacific coast: Carcinonemertes camanchaco sp. nov

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Natalia Verónica Leiva ◽  
Luis Ñacari ◽  
Juan Antonio Baeza ◽  
María Teresa González
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Phylogenetic Analyses ◽  
Total Body Length ◽  
Egg Mass ◽  
Southeastern Pacific ◽  
Northeastern Pacific ◽  
Males And Females ◽  
Total Body ◽  
Commercial Crabs

AbstractNemertean worms belonging to the genus Carcinonemertes have been tied to the collapse of crab fisheries in the northeastern Pacific Ocean. A new species is described from egg masses of two commercial crabs, Cancer porteri and Romaleon setosum, inhabiting the central-north Chilean coast. This is the first species of Carcinonemertes described from the southeastern Pacific Ocean. Total body length of Carcinonemertes camanchaco sp. nov. ranged from 2.38 to 4.93 and from 4.29 to 8.92 mm, in males and females, respectively. Among others, traits that distinguish this new species from other previously described congeneric species include: presence of two gonad rows on each side of the intestine, a simple (not decorated) mucus sheath, and a relatively wide stylet basis. Maximum likelihood and Bayesian inference phylogenetic analyses distinguished this new species from all other species of Carcinonemertes with available cox1 sequences in GenBank. Prevalence and mean (± SD) intensity of C. camanchaco sp. nov. was 24% and 2.6 (± 2.07) worms per egg mass in C. porteri and 38.1% and 3.8 (± 2.4) worms per egg mass in R. setosum. The formal description of this new species represents the first step towards the understanding of this worm's impact on the health of crab fisheries in the southeastern Pacific Ocean.

Carinicateres merkli gen. et sp. nov. from Thailand, with notes on identification of two lophocateride beetles used in recent molecular phylogenies (Cleroidea, Lophocateridae)

Zootaxa ◽  
2021 ◽  
Vol 4985 (4) ◽  
Author(s):  
JIŘÍ KOLIBÁČ
Keyword(s):  
Phylogenetic Analyses ◽  
Monotypic Genus ◽  
Molecular Phylogenetic ◽  
Lateral Margins ◽  
Molecular Phylogenies

Carinicateres merkli gen. et sp. nov. of Lophocateridae from eastern Thailand is described. The monotypic genus is distinct in its unique synapomorphies, namely the tarsal formula 4-4-4, elytron with 2 complete and 3 incomplete carinae, antenna 10-segmented with 2-segmented club. The emarginate frontoclypeal suture, mandible with mola, prementum divided into two parts, cranium dorsally with large impressions, each with seta in centre, crenulate lateral margins of pronotum, and distinct dorsal vestiture are shared with lophocateride genera Indopeltis Crowson and Trichocateres Kolibáč. Two specimens affiliated to Lophocateres Olliff and recently used in three molecular phylogenetic analyses are unambiguously identified as members of the clade Ancyrona + Neaspis and associated with Neaspis Pascoe.

New records of coral-associated crabs (Decapoda: Brachyura: Carpilioidea, Trapezoidea) from Easter Island

Zootaxa ◽  
2017 ◽  
Vol 4216 (5) ◽  
pp. 487 ◽  
Author(s):  
CHRISTOPHER B. BOYKO ◽  
JOSE C. E. MENDOZA ◽  
PETER CASTRO
Keyword(s):  
Pacific Ocean ◽  
New Records ◽  
Scleractinian Corals ◽  
Easter Island ◽  
Southeastern Pacific

A review is made of those brachyurans that are symbiotic or otherwise associated with scleractinian corals on Easter Island, southeastern Pacific Ocean. A total of seven species is reported, including three species from two families not previously known from the island. Earlier records of Trapezia are analyzed and, although as many as six species have been previously reported, we conclude that only three species are known to occur on the island with certainty. 

A new species of Efibula (Polyporales, Basidiomycota) from China

Phytotaxa ◽  
2020 ◽  
Vol 451 (3) ◽  
pp. 238-244
Author(s):  
RUI-XIN MA ◽  
ZHENG-JUN SHI ◽  
CHANG-LIN ZHAO
Keyword(s):  
New Species ◽  
Growth Habit ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Its Sequence ◽  
Data Analyses ◽  
Molecular Phylogenetic ◽  
Thin Walled ◽  
A New Species ◽  
Molecular Phylogenetic Data

Efibula yunnanensis is proposed as a distinct new species based on morphological and molecular phylogenetic data. The species is characterized by an annual growth habit, resupinate basidiomata with smooth, cream to pale brown hymenial surface, a monomitic hyphal system with thin-walled, simple septate generative hyphae and ellipsoid, hyaline, thin-walled, smooth, IKI-, CB-basidiospores. The phylogenetic analyses based on ITS sequence data analyses revealed that E. yunnanensis was sister to a clade comprised E. clarkii and E. gracilis, and then grouped with E. americana and E. tuberculata.

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