scholarly journals Cyclotella iranica sp. nov. (Bacillariophyta: Coscinodiscophyceae), a new diatom from the Karaj River, Iran

Phytotaxa ◽  
2013 ◽  
Vol 104 (1) ◽  
pp. 35 ◽  
Author(s):  
SOMAYYEH KHEIRI ◽  
TAHER NEJADSATTARI ◽  
YOUNES ASRI ◽  
SEYED MOHAMMAD MEHDI HAMDI ◽  
SARAH SPAULDING ◽  
...  
Keyword(s):  
Electron Micrographs ◽  
Related Species ◽  
Type Locality ◽  
Organic Enrichment ◽  
Scanning Electron Micrographs ◽  
Scanning Electron

Cyclotella iranica sp. nov. is described from the Karaj River, Iran. The morphology of Cyclotella iranica is documented with light and scanning electron micrographs and discussed in comparison with several related species: Cyclotella fottii, C. delicatula, C. andancensis var. adnanensis, C. andancensis var. bauzilensis and C. andancensis var. bipolaira. Cyclotella iranica shares with these related Cyclotella species the following features: unequal stria pattern, one sessile rimoportula and several marginal fultoportulae. It is distinguished from them by the position of central fultoportula(e), which is (are) situated at the central end of the striae. It is known only from the type locality; the autecology of Cyclotella iranica shows that it is tolerant of nutrient and organic enrichment.

Envekadea metzeltinii sp. nov., a new diatom (Bacillariophyta) species from the subtropical karstic wetlands of the Florida Everglades, U.S.A.

Phytotaxa ◽  
2013 ◽  
Vol 115 (1) ◽  
pp. 15 ◽  
Author(s):  
SYLVIA S. LEE ◽  
FRANCO A. C. TOBIAS ◽  
BART VAN DE VIJVER
Keyword(s):  
New Species ◽  
Electron Micrographs ◽  
Related Species ◽  
Florida Everglades ◽  
Type Locality ◽  
Similar Species ◽  
Scanning Electron Micrographs ◽  
Diatom Species ◽  
Scanning Electron

Envekadea metzeltinii sp. nov. is described from periphyton assemblages in the subtropical karstic wetlands of the Florida Everglades, U.S.A. The morphology of the new diatom species is documented by light and scanning electron micrographs and discussed in detail, including comparisons with related species in the genera Envekadea, Caloneis, andNavicula. The new species is characterized by a linear valve outline, a sigmoid raphe course, broad variability in areola shapes and sizes, and two clearly raised axial costae. Apart from the type locality in Florida, the species was observed from similar wetlands in the Yucatan, Mexico. Notes on its ecology and distribution are added.Based on the morphology of the most similar species, Navicula palestinae, the latter is transferred to the genus Envekadea.

scholarly journals A redescription of the poorly known cave millipede Skleroprotopus membranipedalis Zhang, 1985 (Diplopoda, Julida, Mongoliulidae), with an overview of the genus Skleroprotopus Attems, 1901

2018 ◽  
Vol 26 ◽  
pp. 55-66
Author(s):  
Boyan Vagalinski ◽  
Kaibaryer Meng ◽  
Darina Bachvarova ◽  
Pavel Stoev
Keyword(s):  
Electron Micrographs ◽  
Original Description ◽  
Cloud Water ◽  
Type Locality ◽  
New Combination ◽  
Scanning Electron Micrographs ◽  
Subjective Synonym ◽  
Scanning Electron

We redescribe the poorly known Chinese millipede Skleroprotopusmembranipedalis Zhang, 1985 recorded from Shi-Hua (Stone Flower) Cave, Fangshan County, Beijing. The species’ original description is in Chinese in an obscure outlet which significantly hampers its recognition from its congeners. Here, based on newly collected material, we provide the first scanning electron micrographs of important taxonomic traits. In addition to its type locality, we report the species also from Yun-Shui (Cloud Water) Cave, situated in the same county, some 18 km away. We propose the genus Senbutudoiulus Miyosi, 1957 to be a junior subjective synonym of Skleroprotopus Attems, 1901, syn. n., and introduce the following new combination: Skleroprotopusplatypodus (Miyosi, 1957), comb. n. (former Senbutudoiulus).

Description and comparison of morphological structures of the eggs of Anopheles hyrcanus group and related species (Diptera: Culicidae) from the Republic of Korea

Zootaxa ◽  
2009 ◽  
Vol 2268 (1) ◽  
pp. 23-40 ◽  
Author(s):  
LEOPOLDO M. RUEDA ◽  
TRACY L. BROWN ◽  
HEUNG-CHUL KIM ◽  
TERRY A. KLEIN ◽  
AMPORN THONGKUKIATKUL ◽  
...  
Keyword(s):  
Electron Micrographs ◽  
Discriminant Function ◽  
Related Species ◽  
Republic Of Korea ◽  
Scanning Electron Micrographs ◽  
Morphometric Measurements ◽  
Interspecific Differences ◽  
The Republic ◽  
Scanning Electron ◽  
Discriminant Function Analyses

The eggs of six Anopheles Hyrcanus Group (An. sinensis Wiedemann, An. kleini Rueda, An. belenrae Rueda, An. pullus M. Yamada, An. lesteri Baisas and Hu, An. sineroides S. Yamada) and related species (An. koreicus S. Yamada and Watanabe, An. lindesayi japonicus S. Yamada), were described from scanning electron micrographs of specimens collected from different localities of the Republic of Korea. Morphometric measurements of egg samples of the eight species were compared and relationships analyzed by multivariate statistics. About 27 characters were selected and used as a basis for principal and discriminant function analyses. Scanning electron micrographs of various parts of the eggs were selected to illustrate interspecific differences for particular morphological features (e.g. anterior and posterior tubercles, decks, plastron, micropyles, floats).

scholarly journals An expanded description of the threatened tree kangaroo tick Ixodes (Sternalixodes) dendrolagi Wilson, 1967 (Acari: Ixodidae) from Papua New Guinea

Acarologia ◽  
2018 ◽  
Vol 58 (2) ◽  
pp. 408-413
Author(s):  
Mackenzie L. Kwak
Keyword(s):  
Papua New Guinea ◽  
Electron Micrographs ◽  
Morphological Variation ◽  
New Guinea ◽  
Type Locality ◽  
Scanning Electron Micrographs ◽  
Type Host ◽  
Scanning Electron

Little is known about the enigmatic tree kangaroo tick (Ixodes dendrolagi Wilson, 1967). Since its description, no new taxonomic data describing it have been published. An updated description of the morphologically variable female I. dendrolagi is presented based on two specimens taken from the type host at the type locality. Scanning electron micrographs are presented with comments on morphological variation in I. dendrolagi. The conservation of the species is also discussed.

A new species of the genus Mallomonas (Synurophyceae), Mallomonas spinosa sp. nov., from Vietnam

Phytotaxa ◽  
2012 ◽  
Vol 66 (1) ◽  
pp. 1 ◽  
Author(s):  
EVGENIY S. GUSEV
Keyword(s):  
New Species ◽  
Electron Micrographs ◽  
Related Species ◽  
Morphological Characteristics ◽  
Scanning Electron Micrographs ◽  
A New Species ◽  
Scanning Electron

Mallomonas spinosa sp. nov. is described from Vietnam. This species has domeless scales with unique four-edged spines, and which are ornamented with papillae. Mallomonas spinosa belongs to the section Papillosae. The morphological characteristics of the scales of the new species are documented by scanning electron micrographs and discussed in detail, including a comparison with related species in the genus Mallomonas.

A new genus and four new species of millipedes from Tasmania, Australia (Diplopoda: Polydesmida: Dalodesmidae), with notes on male leg setae in some Tasmanian dalodesmids

Zootaxa ◽  
2004 ◽  
Vol 558 (1) ◽  
pp. 1 ◽  
Author(s):  
ROBERT MESIBOV
Keyword(s):  
New Species ◽  
Electron Micrographs ◽  
Type Species ◽  
New Genus ◽  
Scanning Electron Micrographs ◽  
Scanning Electron

Bromodesmus catrionae n. gen., n. sp. (type species), B. militaris n. sp., B. riparius n. sp. and B. rufus n. sp. are described. The new genus is characterized by greatly reduced paranota and a gonopod telopodite expanded at the distal end into a posteriorly concave hood fringed with teeth; the hood partly protects a long, curved, acutely pointed solenomerite. Male leg setation in the type species of six Tasmanian dalodesmid genera is briefly discussed and illustrated with scanning electron micrographs. The sphaerotrichome shaft is sharply pointed in Atrophotergum; gently tapered in Dasystigma, Lissodesmus and Tasmanodesmus; expanded at the tip in Bromodesmus; and entirely absent in Gasterogramma. Tips of the setae forming the dense ventral brush on male podomeres are gently tapered in Dasystigma and Lissodesmus, truncated in Gasterogramma, expanded in Bromodesmus and forked in Tasmanodesmus.

The ultrastructure of the epidermis of the redia and cercaria of Parorchis acanthus, Nicoll. A study by scanning and transmission electron-microscopy

Parasitology ◽  
1971 ◽  
Vol 62 (3) ◽  
pp. 479-488 ◽  
Author(s):  
Gwendolen Rees
Keyword(s):  
Electron Micrographs ◽  
Technical Assistance ◽  
Ventral Surface ◽  
The Body ◽  
Muscle Fibres ◽  
Scanning Electron Micrographs ◽  
Large Area ◽  
Transmission Electron ◽  
Parorchis Acanthus ◽  
Scanning Electron

Scanning electron-micrographs have shown the covering of microvilli on the surface of the redia of Parorchis acanthus. In the contracted state the elongated microvilli with bulbous extremities seen in the surface grooves may be the result of compression. The surface of the epidermis of the cercaria is smooth on a large area of the ventral surface and lattice-like with microvilli, laterally, anteriorly, dorsally and on the tail. The spines on the body can be withdrawn into sheaths by the contraction of muscle fibres inserted into the basement lamina below each spine.I would like to express my sincere gratitude to Dr I. ap Gwynn of this department for preparing the scanning electron-micrographs and the School of Engineering Science, University of North Wales, Bangor for the use of their stereoscan. I should also like to thank Mr M. C. Bibby for technical assistance and Professor E. G. Gray and Dr W. Sinclair for assistance with the transmission electron-micrographs.

Aphid parasitoids infesting cotton, citrus, tobacco, and cereal crops in southeastern Europe: aphid-plant associations and keys

2005 ◽  
Vol 137 (5) ◽  
pp. 516-531 ◽  
Author(s):  
Nickolas G. Kavallieratos ◽  
Željko Tomanović ◽  
Christos G. Athanassiou ◽  
Petr Starý ◽  
Vladimir Žikić ◽  
...  
Keyword(s):  
Electron Micrographs ◽  
Separate Group ◽  
Cereal Crops ◽  
Scanning Electron Micrographs ◽  
Southeastern Europe ◽  
Line Drawings ◽  
Plant Associations ◽  
New Information ◽  
Aphid Parasitoids ◽  
Scanning Electron

AbstractWe present new information on the parasitoids (Hymenoptera: Braconidae: Aphidiinae) of aphids infesting cotton, tobacco, citrus, and cereal agroecosystems in southeastern Europe. Nineteen species are keyed and illustrated with scanning electron micrographs and line drawings. The aphidiines presented in this work have been identified from 18 aphid taxa. Furthermore, 96 original parasitoid–aphid–plant associations are presented. Cotton, tobacco, and citrus agroecosystems are connected through aphids and their parasitoids, whereas cereal agroecosystems represent a separate group of associations.

Key for identification of the parasitoids (Hymenoptera: Braconidae: Aphidiinae) of aphids infesting alfalfa in Europe

Zootaxa ◽  
2018 ◽  
Vol 4378 (1) ◽  
pp. 98 ◽  
Author(s):  
MUSTAFA E. GHALIOW ◽  
ANDJELJKO PETROVIĆ ◽  
KORANA KOCIĆ ◽  
JELISAVETA ČKRKIĆ ◽  
ANA MITROVSKI BOGDANOVIĆ ◽  
...  
Keyword(s):  
Electron Micrographs ◽  
Scanning Electron Micrographs ◽  
Line Drawings ◽  
The Subject ◽  
Scanning Electron

Although Aphidiinae parasitoids have been used as agents for biocontrol of alfalfa aphids for more than half a century and have been the subject of numerous ecological investigations, there is an evident lack of systematic studies on the parasitoids of aphids infesting alfalfa in Europe. Here we present an original and up-dated key for identification of both native and invasive Aphidiinae parasitoids attacking aphids that feed on alfalfa in Europe. In total, 20 species are keyed and illustrated with scanning electron micrographs and line drawings. 

Photoluminescence, photocatalysis and Judd–Ofelt analysis of Eu3+-activated layered BiOCl phosphors

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4109-4120 ◽  
Author(s):  
Rohit Saraf ◽  
C. Shivakumara ◽  
Sukanti Behera ◽  
H. Nagabhushana ◽  
N. Dhananjaya
Keyword(s):  
Crystal Structure ◽  
Field Emission ◽  
Electron Micrographs ◽  
Dye Degradation ◽  
Scanning Electron Micrographs ◽  
Chromaticity Diagram ◽  
Cie Chromaticity ◽  
Scanning Electron

Crystal structure of tetragonal BiOCl, field emission scanning electron micrographs, CIE chromaticity diagram and percentage of RhB dye degradation of Bi1−xEuxOCl.

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