Envekadea vranaensis sp. nov. a new diatom species (Bacillariophyta) from the lacustrine Holocene sediments of Lake Vrana, Croatia

Nova Hedwigia ◽  
2020 ◽  
Vol 110 (1) ◽  
pp. 1-19
Author(s):  
Katarina Caput Mihalić ◽  
Ines Galović ◽  
Carlos E. Wetzel ◽  
Luc Ector ◽  
Nikolina Ilijani ◽  
...  
Keyword(s):  
New Species ◽  
Morphological Features ◽  
Diatom Species ◽  
Ecological Preferences ◽  
Outline Shape ◽  
Holocene Sediments ◽  
A New Species

A new species, Envekadea vranaensis Caput Mihalić, Galović & Levkov sp. nov., is described from Holocene sediments of Lake Vrana, Croatia. The new species is characterized by linear-lanceolate valves with broadly capitate apices and is 40.0–67.5 μm long and 7.5–9.0 μm wide. Based on its morphological features it is similar to E. hedinii and E . pseudocrassirostris. Also, E. vranaensis shares morphological and ultrastructural features with E . vanlandinghamii, from which it can be differentiated by the valve outline, shape of the apices, stria density and the shape of proximal raphe endings. We present stratigraphic occurrence and ecological preferences for E . vranaensis based on associated paleoecological proxies.

scholarly journals Cymbopleura natellia – a new species from Transbaikal area (Russia, Siberia) described on the basis of molecular and morphological investigation

PhytoKeys ◽  
2021 ◽  
Vol 183 ◽  
pp. 95-105
Author(s):  
Anton Glushchenko ◽  
Evgeniy Gusev ◽  
Yevhen Maltsev ◽  
John Patrick Kociolek ◽  
Irina Kuznetsova ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Morphological Features ◽  
Diatom Species ◽  
Morphological Investigation ◽  
Molecular Tool ◽  
A New Species ◽  
Morphological Investigations

A new cymbelloid diatom species from the genus Cymbopleura (Krammer) Krammer is described on the basis of molecular and morphological investigations. Cymbopleura natellia Glushchenko, Kulikovskiy & Kociolek, sp. nov. is, on the basis of results with molecular data, close to C. naviculiformis (Auerswald ex Heiberg) Krammer. The two species differ both by molecular distance and morphological features. Morphologically, C. natelliasp. nov. is compared with several other species in the genus. This work is a pioneer investigation of cymbelloid taxa using molecular tool from Transbaikal area.

Prestauroneis genkalii—a new diatom species (Bacillariophyceae: Stauroneidaceae) from Southeast Asia

Phytotaxa ◽  
2019 ◽  
Vol 414 (4) ◽  
pp. 156-164
Author(s):  
ANTON GLUSHCHENKO ◽  
JOHN PATRICK KOCIOLEK ◽  
IRINA KUZNETSOVA ◽  
ELENA KEZLYA ◽  
MAXIM KULIKOVSKIY
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Morphological Features ◽  
New Combination ◽  
Diatom Species ◽  
Outline Shape ◽  
Electron Microscopical ◽  
One New Species ◽  
Scanning Electron

We present light and scanning electron microscopical observations on one new species of Prestauroneis from Vietnam. The new species, Prestauroneis genkalii Glushchenko, Kulikovskiy & Kociolek sp. nov., is described on the basis valve outline, shape of the apices, as well as striae and areolar densities. Morphology of Prestauroneis species, especially with respect to valve outline, is discussed. P. genkalii sp. nov. possesses all of the typical morphological features for the genus, including uniseriate striae covered by internal hymenes, a pseudoseptum at each apex and distal raphe ends extending onto the valve mantle. In addition, a new combination is suggested for Navicula pseudocrucicula Kobayasi, Prestauroneis pseudocrucicula (Kobayasi) Glushchenko, Kulikovskiy & Kociolek comb. nov. on the basis of type description. P. genkalii sp. nov. is the first member of the genus Prestauroneis reported for Southeast Asia.

Planothidium sheathii, a new monoraphid diatom species from rivers in California, USA

Phytotaxa ◽  
2019 ◽  
Vol 393 (2) ◽  
pp. 131 ◽  
Author(s):  
ROSALINA STANCHEVA
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Morphological Features ◽  
Diatom Species ◽  
Unique Combination ◽  
Valve Morphology ◽  
Valve Margin ◽  
A New Species ◽  
Scanning Electron

Planothidium sheathii sp. nov., a new species from rivers in California, USA, is described based on light and scanning electron microscopy. P. sheathii has broadly lanceolate to elliptic valves with obtusely rounded apices and a unique combination of morphological features, as follows: 1) cavum with broad hood aperture that flares out at the valve margin with open borders fused with the neighboring virgae on SV, 2) multiseriate striae, composed of five to six rows of same sized areolae on both valves, interrupted at valve mantle junction, and 3) areolae groups on valve mantle, with rounded areolae on RV, and rounded and elongated areolae on SV. Valve morphology of P. sheathii is discussed in comparison with similar freshwater taxa, from which the new species is clearly distinct.

Neidiomorpha gusevii—a new diatom species (Bacillariophyceae: Neidiaceae) from Southeast Asia

Phytotaxa ◽  
2019 ◽  
Vol 415 (5) ◽  
pp. 279-285 ◽  
Author(s):  
ANTON GLUSHCHENKO ◽  
JOHN PATRICK KOCIOLEK ◽  
IRINA KUZNETSOVA ◽  
ELENA KEZLYA ◽  
MAXIM KULIKOVSKIY
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Morphological Features ◽  
Diatom Species ◽  
Outline Shape ◽  
Electron Microscopical ◽  
One New Species ◽  
Scanning Electron

We present light and scanning electron microscopical observations on one new species of Neidiomorpha from Vietnam. The new species, Nediomorpha gusevii Glushchenko, Kulikovskiy & Kociolek sp. nov., is described on the basis valve outline, shape of the apices, as well as striae and areolae densities. Morphology of Neidiomorpha species, especially on the basis valve outline, is discussed. Neidiomorpha gusevii sp. nov. possesses all of the typical morphological features for the genus, including valves that have longitudinal canals with pleuriseriate coverings, constrictions about the center, rostrate apices, uniseriate striae, absence of renilimbii, straight raphe with small central pores and hooked distal raphe ends going to mantle, and lacking lacinia. Our new species is compared with other three known species from the genus Neidiomorpha, including N. binodis, N. binodiforme and N. sichuaniana. N. gusevii sp. nov. is the first species of Neidiomorpha documented with LM and SEM from Southeast Asia.

A new species of lambdarina (rhynchonellida, brachiopoda) from the viséan of central sudetes (Poland) and its phylogenetic position

2014 ◽  
Vol 64 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Jolanta Muszer
Keyword(s):  
New Species ◽  
Full Range ◽  
Morphological Features ◽  
Phylogenetic Position ◽  
Growth Stages ◽  
Tropical Waters ◽  
Marginal Seas ◽  
Sw Poland ◽  
A New Species

Abstract A new species of micromorphic articulate brachiopod (Rhynchonellida) Lambdarina jugowiensis sp. nov., from the upper Visean (Sokolec Beds) of central Sudetes, SW Poland, is described. The studied specimens are calcified, what makes them unique in respect of their state of preservation. The material is represented by a full range of growth stages; from brephic to gerontic. Based on its morphological features and the palaeogeographical distribution of all its known species, two main evolutionary lines are proposed for the genus; the Australian and the European ones. Lambdarina was widely distributed in the equatorial-tropical waters of marginal seas of the Palaeotethys Ocean, mostly during Mississippian time.

Leptochelia Vatulelensis (Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western Pacific

2011 ◽  
Vol 54 (2) ◽  
pp. 351-363
Author(s):  
Modest Guţu ◽  
Thomas Iliffe
Keyword(s):  
New Species ◽  
New Caledonia ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
Western Pacific ◽  
Small Islands ◽  
The South ◽  
Anchialine Caves ◽  
A New Species

Leptochelia Vatulelensis(Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western PacificLeptochelia vatulelensisn. sp., discovered on the small islands of Vatulele (Fijian group) and Ouvéa (Loyalty Islands, New Caledonia), is described and illustrated. The new species is distinguished from the others of the"Leptochelia-dubiagroup" (to which it is generally similar) by the following combination of morphological characteristics: (1) the presence of three to four distal setae on the maxilliped basis; (2) merus of pereopods III and IV with only a distosternal seta; (3) endopod of the uropods formed of four (rarely three) articles; (4) males with two (sometimes three) relatively short aesthetascs on the first five articles of the antennular flagellum; (5) male cheliped with a diminished dimorphism; (6) males with a vertical comb-row of setae on the cheliped propodus. Although it inhabits inland, anchialine caves, the new species lacks morphological features that are characteristic of some cave species.

scholarly journals The freshwater crabs of Danum Valley Conservation Area in Sabah, East Malaysia, with a description of a new species of Thelphusula Bott, 1969 (Crustacea, Brachyura, Gecarcinucidae, Potamidae, Sesarmidae)

ZooKeys ◽  
2018 ◽  
Vol 760 ◽  
pp. 89-112 ◽  
Author(s):  
Peter K. L. Ng ◽  
Paul Y. C. Ng
Keyword(s):  
New Species ◽  
Adult Male ◽  
New Record ◽  
Morphological Features ◽  
Unique Combination ◽  
Conservation Area ◽  
Freshwater Crabs ◽  
East Malaysia ◽  
A New Species ◽  
Malaysian Borneo

Seven species of freshwater crabs from three families are recorded from and around the Danum Valley Conservation Area in Sabah, Malaysian Borneo: Thelphusulacapillodigitus sp. n., Thelphusuladicerophilus Ng & Stuebing, 1990, Arachnothelphusaterrapes Ng, 1991, Terrathelphusasecula Ng & Tan, 2015, Parathelphusavalida Ng & Goh, 1987 (new record) (Gecarcinucidae); Isolapotamoningeri Ng & Tan, 1998 (Potamidae); and Geosesarmadanumense Ng, 2002 (Sesarmidae). The new species of Thelphusula Bott, 1979, can be distinguished from all congeners by a unique combination of morphological features, most notably the presence of dense patches of short setae on the fingers of the adult male chelipeds, as well as the structure of the male first gonopod. Arachnothelphusaterrapes is confirmed to be a phytotelm species. A key to all species in the conservation area is provided.

A new species of Tychus Leach, 1817 from Lebanon (Coleoptera, Staphylinidae, Pselaphinae)

Zootaxa ◽  
2019 ◽  
Vol 4656 (3) ◽  
pp. 596-600
Author(s):  
GIORGIO SABELLA ◽  
FABIO MASSIMO VIGLIANISI ◽  
VERA D’URSO
Keyword(s):  
New Species ◽  
Species Group ◽  
Morphological Features ◽  
A New Species

Tychus meggiolaroi sp. n. from Lebanon is described and illustrated. It belongs to the Tychus cilicicus species group (Sabella & Kurbatov 2002) and can be readily distinguished from related taxa by the different structure of the aedeagus and morphological features of antennae. 

Stachys semsurensis (Lamiaceae), a new species from Adıyaman province (Turkey) belonging to section Infrarosularis

Phytotaxa ◽  
2021 ◽  
Vol 511 (3) ◽  
Author(s):  
MEHMET FIRAT
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Habitat Structure ◽  
Conservation Status ◽  
Morphological Features ◽  
Point Of View ◽  
Distribution Map ◽  
Comprehensive Description ◽  
Glandular Hairs ◽  
A New Species

A new species, Stachys semsurensis (sect. Infrarosularis), is described and illustrated from Adıyaman province, Turkey. From the morphological point of view, it appears to be similar to Stachys cataonica, but it differs in several morphological features including densely covered with short stalked to subsessile glandular hairs in flowering stems, verticillasters congested into ± globose head, calyx teeth lanceolate-subulate, corolla white, tube exserted and nutlets obovoid, greyish-brown, reticulate. A comprehensive description of the new species is provided, including detailed photographs, geographical distribution map, habitat structure and ecology, vernacular name and IUCN conservation status.

A new species of Plestiodon (Squamata: Scincidae) from the Senkaku Group, Ryukyu Archipelago, Japan

Zootaxa ◽  
2017 ◽  
Vol 4254 (5) ◽  
pp. 520 ◽  
Author(s):  
KAZUKI KURITA ◽  
HIDETOSHI OTA ◽  
TSUTOMU HIKIDA
Keyword(s):  
New Species ◽  
Species Group ◽  
Morphological Features ◽  
Posterior Surface ◽  
Ryukyu Archipelago ◽  
Molecular Analyses ◽  
Conservation Implications ◽  
Island Group ◽  
A New Species

A new scincid lizard, Plestiodon takarai sp. nov., is described from the Senkaku Group, Ryukyu Archipelago, Japan. The Plestiodon lizards in this island group have previously been identified as P. elegans because they all exhibit a patch of enlarged and irregularly arranged scales on the posterior surface of their femurs. However, detailed molecular analyses revealed that the Senkaku population, although closely related to P. elegans and other species in the P. latiscutatus species group, is substantially diverged from all other recognized species. Furthermore, although the Senkaku population largely exhibits the characteristic morphological features of this species group, it can be differentiated from all recognized species by the scutellation and hatchling tail coloration. The biogeographical and conservation implications of these findings are briefly discussed. 

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