Pinnularia arkadii sp. nov., a new diatom (Naviculales, Bacillariophyceae) from Shemya Island, Alaska, USA

2018 ◽  
Vol 52 (1) ◽  
pp. 83-89 ◽  
Author(s):  
A. A. Neplyukhina ◽  
D. A. Chudaev ◽  
M. A. Gololobova
Keyword(s):  
New Species ◽  
Central Area ◽  
Morphological Characters ◽  
Peat Bog ◽  
Similar Species ◽  
Unique Combination ◽  
Pennate Diatom ◽  
Diatom Genus ◽  
A New Species

Based on a unique combination of morphological characters, a new species of the raphid pennate diatom genus Pinnularia was described from the sediments in MacDonald Point peat-bog, Shemya Island, Alaska, USA. P. arkadii sp. nov. has linear valves with parallel margins, widely rounded ends and central area forming wide fascia; striae are relatively coarse, 5.6–6.6 in 10 μm, not crossed by longitudal bands. This taxon was compared to other morphologically similar species of Pinnularia: P. aestuarii, P. brebissonii, P. eifelana, P. franconica, P. idsbensis, P. inconstans, P. laperousei, P. linearidivergens, P. rabenhorstii var. subantarctica and P. tolottiana. The main morphological characters of P. arkadii and similar taxa are discussed.

Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.

Phytotaxa ◽  
2018 ◽  
Vol 336 (3) ◽  
pp. 201 ◽  
Author(s):  
Chiara PENNESI ◽  
ROKSANA MAJEWSKA ◽  
FRITHJOF A.S. STERRENBURG ◽  
CECILIA TOTTI ◽  
MARIO DE STEFANO
Keyword(s):  
Electron Microscopy ◽  
New Species ◽  
Central Area ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Parsimony Method ◽  
Maximum Parsimony Method ◽  
Valve Margin ◽  
Diatom Genus ◽  
A New Species

We present here an ultrastructure-based revision of the diatom genus Anorthoneis using both light (LM) and electron microscopy (SEM). The original slides and type material of all known Anorthoneis species were analysed and new, previously unseen, morphological features of the frustules, such as rota-like vela and ligulate structures around the valve margin, were revealed. The phylogenetic relationships among Anorthoneis taxa were investigated based on morphological characters using a maximum parsimony method. This analysis indicated a large, well-supported clade that included taxa that exhibited similarities in external and internal details of the central areas in both raphe-sternum and sternum valves. Revealed synapomorphies within the genus include externally and internally transversely dilated central area on both sides of the raphe-sternum valve, externally transversely dilated central area on both sides of the sternum valve, sternum valve striae parallel at the center and radiate at the apices, and areolae with hymenes in both valves. During a survey a new species Anorthoneis arthus-bertrandii sp. nov., was found on seagrass leaves collected from Siladen Island (Indonesia). This taxon is sister to A. hyalina, but can be easily differentiated from the latter by smaller valve dimensions, central area size and shape, and rota-like vela occluding sternum valve areolae - a feature that has never been observed in other Anorthoneis taxa. 

Nupela major sp. nov., a new diatom species from Maolan Nature Reserve, central-south of China

Phytotaxa ◽  
2017 ◽  
Vol 311 (3) ◽  
pp. 245 ◽  
Author(s):  
PAN YU ◽  
QINGMIN YOU ◽  
J. PATRICK KOCIOLEK ◽  
REX LOWE ◽  
QUANXI WANG
Keyword(s):  
New Species ◽  
Nature Reserve ◽  
Central Area ◽  
Guizhou Province ◽  
Similar Species ◽  
Diatom Species ◽  
Valve Margin ◽  
Diatom Genus ◽  
Central South ◽  
A New Species

Nupela major sp. nov., a new species of the diatom genus Nupela, is described from Maolan Nature Reserve, Guizhou Province, China. Observations were made using light and scanning electron microscopy documenting the size, shape and ultrastructure of the new species. Valves of the monoraphid frustules are elliptical-lanceolate with more or less cuneate, subtlety protracted ends. The raphe valve has a linear-lanceolate axial area and an irregularly-shaped central area. Striae appear intermittent or disrupted. The rapheless valve has a linear-lanceolate axial area widening in the center to form an asymmetrical central area that can in some specimens reach to the valve margin. The rapheless valve has a contoured valve face, with deep indentations in the axial area. The species is assigned to Nupela by virtue of its external occlusions on the areolae, and compared with similar species in the genus. The new species is found on stones beneath a waterfall and associated with a moss community.

scholarly journals Amaioua longipedicellata (Rubiaceae, Gardenieae), a new species from the Brazilian Atlantic coast

2019 ◽  
Vol 152 (1) ◽  
pp. 84-92
Author(s):  
Piero G. Delprete ◽  
Jomar G. Jardim
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Atlantic Coast ◽  
Morphological Characters ◽  
Herbarium Specimens ◽  
Similar Species ◽  
Field Observations ◽  
Undescribed Species ◽  
Semideciduous Forest ◽  
A New Species

Background – Ongoing studies of Brazilian Rubiaceae revealed an undescribed species of Amaioua endemic to Atlantic Forest (Restinga and Semideciduous forest) of the state of Bahia, which is here described and illustrated, and its morphological characters are discussed and compared with those of similar species. Methods – This study is based on examinations of herbarium specimens, samples preserved in 60% ethanol, field observations, and digital images. Herbarium specimens of the CAY, CEPEC, HBR, IBGE, K, MBM, NY, RB, U, UB, UFG, and US herbaria were directly studied. Additional images of herbarium specimens were studied online. Results – Amaioua longipedicellata Delprete & J.G.Jardim is here described, illustrated and compared with the two most similar species, i.e., A. glomerulata (Lam. ex Poir.) Delprete & C.H.Perss. and A. intermedia Mart. A table comparing the morphological characters of these three species, and an appendix with selected specimens studied of A. glomerulata and A. intermedia are included.

scholarly journals Genetic diversity of the genus Terfezia (Pezizaceae, Pezizales): New species and new record from North Africa

Phytotaxa ◽  
2018 ◽  
Vol 334 (2) ◽  
pp. 183 ◽  
Author(s):  
Fatima El-Houaria ZITOUNI-HAOUAR ◽  
JUAN RAMÓN CARLAVILLA ◽  
GABRIEL MORENO ◽  
JOSÉ LUIS MANJÓN ◽  
ZOHRA FORTAS
Keyword(s):  
New Species ◽  
North Africa ◽  
Phylogenetic Analyses ◽  
Ribosomal Subunit ◽  
Morphological Characters ◽  
Phylogenetic Position ◽  
Unique Combination ◽  
Large Ribosomal Subunit ◽  
First Time ◽  
A New Species

Morphological and phylogenetic analyses of large ribosomal subunit (28S rDNA) and internal transcribed spacer (ITS rDNA) of Terfezia samples collected from several bioclimatic zones in Algeria and Spain revealed the presence of six distinct Terfezia species: T. arenaria, T. boudieri, T. claveryi; T. eliocrocae (reported here for the first time from North Africa), T. olbiensis, and a new species, T. crassiverrucosa sp. nov., proposed and described here, characterized by its phylogenetic position and unique combination of morphological characters. A discussion on the unresolved problems in the taxonomy of the spiny-spored Terfezia species is conducted after the present results.

Description of a new species of Plutomurus Yosii (Collembola: Tomoceridae) from Georgia, Caucasus and notes on the morphology of Plutomurus birsteini Djanashvili & Barjadze

Zootaxa ◽  
2020 ◽  
Vol 4790 (2) ◽  
pp. 375-386
Author(s):  
SHALVA BARJADZE ◽  
ROSANNA GIORDANO ◽  
FELIPE SOTO-ADAMES
Keyword(s):  
New Species ◽  
Original Description ◽  
Morphological Characters ◽  
Identification Key ◽  
Type Locality ◽  
Similar Species ◽  
The Caucasus ◽  
Invertebrate Communities ◽  
A New Species

Plutomurus jordanai sp. nov. from Zeda Kvilishori Cave (Tskaltubo Municipality, Imereti region, Western Georgia) is described, illustrated and differentiated from other morphologically similar species‒‒P. kelasuricus Martynova, 1969 and P. eristoi Barjadze, Baquero, Soto-Adames, Giordano & Jordana, 2016. In addition, morphological characters omitted or erroneously provided in the original description of Plutomurus birsteini Djanashvili & Barjadze, 2011 are described and illustrated from the specimen sampled in the type locality‒‒Sakishore Cave (Racha region, Western Georgia). An identification key to the species of the genus Plutomurus reported from the Caucasus is presented. A list of the invertebrate communities for Zeda Kvilishori and Sakishore caves is provided. 

First records of Epimeriidae and Iphimediidae (Crustacea, Amphipoda) from Macquarie Ridge, with description of a new species and its juveniles

Zootaxa ◽  
2012 ◽  
Vol 3200 (1) ◽  
pp. 49 ◽  
Author(s):  
ANNE-NINA LÖRZ
Keyword(s):  
New Species ◽  
New Zealand ◽  
Amphipod Species ◽  
Similar Species ◽  
Unique Combination ◽  
Heard Island ◽  
Mid Ocean Ridge ◽  
Ocean Ridge ◽  
First Time ◽  
A New Species

Amphipod species of the families Epimeriidae and Iphimediidae are recorded for the first time from Macquarie Ridge, asparsely sampled mid-ocean ridge between New Zealand and Antarctica. Epimeria ashleyi sp. nov. collected from twoseamounts on the Macquarie Ridge between 676–1025 m water depth is described in detail.Epimeria ashleyi sp. nov. can be distinguished from similar species by the unique combination of following charac-ters: pointed coxa 1–3, dorsal doublecarinae as well as three lateral projections on epimeral plates 1–3. The juveniles ofthe new species are described and are considerably different from the adults. Additionally, Labriphimedia pulchridentata(Stebbing, 1888), previously known only from Heard Island, is recorded from Macquarie Ridge seamounts with first images of its colour in life.

Discovery of the genus Rybocyclops Dussart, 1982 (Crustacea, Copepoda, Cyclopoida) in subterranean groundwaters of southeastern India, with the description of a new species and its biogeographic significance

Zootaxa ◽  
2008 ◽  
Vol 1810 (1) ◽  
pp. 40 ◽  
Author(s):  
YENUMULA RANGA REDDY ◽  
DANIELLE DEFAYE
Keyword(s):  
New Species ◽  
First Record ◽  
Morphological Characters ◽  
Endopodal Segment ◽  
Generic Diagnosis ◽  
Unique Combination ◽  
Setal Formula ◽  
A New Species ◽  
Bore Well ◽  
Copepoda Cyclopoida

Rybocyclops Dussart, 1982 is a little-known stygobitic genus, hitherto represented by its type and only species, R. pauliani (Lindberg, 1954), from Madagascar. A second species, named Rybocyclops dussarti sp. nov., is described herein from an agricultural bore-well in southeastern India. The new species has a unique combination of morphological characters, which, inter alia, include: genital double-somite enlarged; anal operculum moderately large; furcal rami somewhat outcurved and about twice as long as wide; female antennules 11-segmented; legs 1–4 with spine formula 2.2.2.2, and setal formula 5.5.5.4; legs 1 and 4 without seta on inner margin of coxa and basis; leg 4 male with one seta more than in female on second endopodal segment; leg 5 fused to somite and represented by vague protuberance, bearing three setae; and leg 6 reduced to two setae. The generic diagnosis is partially amended for accommodating the new species. The discovery of R. dussarti sp. nov. is of much biogeographic interest because it is the first record of Rybocyclops from Asia and only the second freshwater stygobitic cyclopoid taxon from India, with apparent Gondwanan distribution.

A new species of Marphysa Quatrefages, 1865 (Polychaeta: Eunicida: Eunicidae) from northern Australia and a review of similar taxa from the Indo-west Pacific, including the genus Nauphanta Kinberg, 1865

Zootaxa ◽  
2010 ◽  
Vol 2352 (1) ◽  
pp. 29 ◽  
Author(s):  
CHRISTOPHER J. GLASBY ◽  
PAT A. HUTCHINGS
Keyword(s):  
New Species ◽  
First Record ◽  
Morphological Characters ◽  
Fish Farm ◽  
Unique Combination ◽  
Northern Australia ◽  
Coastal Regions ◽  
West Pacific ◽  
Peculiar Behaviour ◽  
A New Species

A taxonomic survey of Marphysa species (Polychaeta: Eunicida: Eunicidae) from coastal regions of northern Australia including recently collected specimens from a fish farm near Darwin, yielded three species: M. mullawa Hutchings & Karageorgopolous, 2003, a first record from northern Australia; M. mossambica (Peters, 1854; was Nauphanta mossambica), first confirmed record from Australia; and a new species, M. fauchaldi. The new species was recorded from intertidal muddy shores as well as in the sediments of fish farm ponds, where it was extremely abundant. It is characterised by a unique combination of chaetal features. A newly proposed informal subgroup of Marphysa, the Teretiuscula-group, is erected to contain the new species and other Marphysa species that share the possession of compound spinigerous chaetae in anterior parapodia only and the peculiar behaviour of encapsulating embryos in jelly cocoons. Morphologically, the new species falls between a group of Marphysa species having only compound spinigers and the recently resurrected genus Nauphanta, which completely lacks compound chaetae. The discovery of this new species necessitated a re-evaluation of the morphological features of Nauphanta and Marphysa species lacking falcigers, in particular homology of fan chaetae, the only apparent synapomorphy of Nauphanta. Fan chaetae appear to be a specialised type of pectinate chaetae, which are found also in species of Marphysa including the new species. Based on this finding, and an evaluation of other characters, Nauphanta is returned to synonymy with Marphysa. Further, an analysis of size-related variation of key morphological characters in M. mossambica and comparison with those in the types of M. novaehollandiae (Kinberg, 1865; formerly Nauphanta) and M. simplex Treadwell, 1922, indicated that both species should be synonymised with M. mossambica. A key is provided to identify Marphysa species of the Indo-west Pacific.

A new species of the diurnal gekkonid genus Pristurus Rüppell, 1835 from the Red Sea island Hanish al-Kabir, Yemen

2008 ◽  
Vol 29 (2) ◽  
pp. 217-227 ◽  
Author(s):  
Herbert Rösler ◽  
Wolfgang Böhme ◽  
Jörn Köhler
Keyword(s):  
New Species ◽  
Red Sea ◽  
Morphological Characters ◽  
Unique Combination ◽  
Small Species ◽  
Island Endemic ◽  
A New Species

Abstract We describe a new species of gecko of the genus Pristurus from the Yemenite Red Sea Island Hanish al-Kabir. It is a small species (snout-vent length less than 30 mm) of the genus, distinguished from its congeners by a unique combination of morphological characters. Superficially, it is most similar to P. rupestris, but differs mainly by a longer and narrower snout, by its strongly compressed tail, presence of a lateral caudal groove, by a tail crest present in both sexes, by a higher number of scales bordering infralabials and a higher midbody scale count. The new species is tentatively considered to represent an island endemic. Its possible origin is briefly discussed.

Diabrotica collicola (Coleoptera: Chrysomelidae), a new species of leaf beetle from Argentina and key to species of the Diabrotica virgifera group and relatives

Zootaxa ◽  
2010 ◽  
Vol 2683 (1) ◽  
pp. 45 ◽  
Author(s):  
NORA CABRERA ◽  
GUILLERMO CABRERA WALSH
Keyword(s):  
New Species ◽  
Hind Wing ◽  
Morphological Characters ◽  
Leaf Beetle ◽  
Full Description ◽  
Wing Venation ◽  
Similar Species ◽  
Diabrotica Virgifera ◽  
Catamarca Province ◽  
A New Species

The new species Diabrotica collicola Cabrera & Cabrera Walsh is described and illustrated based on specimens collected from Balcozna, Catamarca Province (Argentina). A full description is provided and includes adding morphological characters of the mouthparts, hind wing venation, binding patch, metendosternite, and details of male and female genitalia previously overlooked for the genus. Diabrotica collicola is recognized by the following characters: general color parrot green with yellowish vittae, genal space less than 1/4 maximum length of the eye, antennomeres 2 and 3 subequal in males, 3 longer in females, both antennomeres together more than length 1/2 of 4 in both sexes, prothoracic and mesothoracic tarsi of males with ventral adhesive patch, internal sac of the median lobe with four sclerites. Differences with similar species D. mutabilis Baly, D. fulvofasciata Jacoby, D. mapiriensis gussi Krysan & Smith and D. porracea Harold are discussed. A key to D. collicola and similar species is provided.

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