First record of the nematode Aviculariella alcedonis (Yamaguti et Mitunaga, 1943) (Spirurida, Acuariidae) in Europe, with SEM observations and comments on its taxonomic position

2009 ◽  
Vol 54 (4) ◽  
Author(s):  
Yasen Mutafchiev ◽  
Pavel Zehtindjiev ◽  
Boyko Georgiev
Keyword(s):  
Light Microscopy ◽  
Host Range ◽  
First Record ◽  
Taxonomic Position ◽  
Geographical Record ◽  
The Family ◽  
Morphological Peculiarity ◽  
New Geographical Record ◽  
Sem Studies

AbstractAviculariella alcedonis (Spirurida, Acuariidae) is recorded from Alcedo atthis (Coraciiformes, Alcedinidae) from Bulgaria (new geographical record). A description of female specimens based on light-microscopy and SEM studies is presented. On the basis of the observations of the cephalic end, the position of the genus is considered to be in the subfamily Acuariinae, not in the Seuratiinae where it was previously placed. The host range of Aviculariella spp. is recognised as restricted to birds of the family Alcedinidae. A new morphological peculiarity described in A. alcedonis is the presence of a pair of sublateral ribs at the anterior end of each pseudolabium.

scholarly journals A revised description of Synodontella zambezensis Douëllou et Chishawa, 1995 (Monogenea: Ancyrocephalidae) from the gills of Synodontis zambezensis (Siluriformes: Mochokidae) from South Africa

2016 ◽  
Vol 53 (4) ◽  
pp. 363-371 ◽  
Author(s):  
M. E. Raphahlelo ◽  
I. Přikrylová ◽  
M. M. Matla ◽  
J. Theron ◽  
W. J. Luus-Powell
Keyword(s):  
South Africa ◽  
Dna Sequencing ◽  
Original Description ◽  
First Record ◽  
Molecular Data ◽  
Morphometric Characteristics ◽  
Geographical Record ◽  
Its1 Rdna ◽  
New Geographical Record

SummaryThis study supplements the original description ofSynodontella zambezensisDouëllou et Chishawa, 1995 and represents a new geographical record for this parasite fromSynodontis zambezensisfrom South Africa. The revision is based on morphometric characteristics and molecular data. Characterisation of LSU, partial SSU and ITS1 rDNA represents a first record of DNA sequencing forSynodontellaspecies.

scholarly journals Taxonomic position of Lovenella gracilis Clarke, 1882 (Lovenellidae, Hydrozoa): new evidences of microanatomy justify its maintenance in the genus Lovenella Hincks, 1868

2017 ◽  
Vol 41 (2) ◽  
pp. 286-295
Author(s):  
Thaís Pires Miranda ◽  
Amanda Ferreira Cunha ◽  
Antonio C. Marques
Keyword(s):  
Light Microscopy ◽  
Intertidal Zone ◽  
Rio Grande ◽  
First Record ◽  
Taxonomic Position ◽  
Nominal Species ◽  
Santa Catarina ◽  
Scanning Electron Microcopy ◽  
Taxonomical Status ◽  
Scanning Electron

Lovenella gracilis Clarke, 1882 is one of the 15 nominal species referred to the genus Lovenella Hincks, 1868, a genus characterized by the presence of a basal line demarcating the separation between operculum and hydrotheca. However, Lovenella gracilis apparently does not have the demarcating line under light microscopy – therefore, the resurrection of the genus Dipleuron Brooks, 1882 was proposed to accommodate this species. The goal of this study is to redescribe the polyp of L. gracilis trying to resolve this doubtful taxonomical “status”. Fertile colonies were collected in the intertidal zone of Rio Grande do Norte and Santa Catarina States, representing the first record of the species for the South Atlantic. Scanning electron microcopy of L. gracilis has shown a tenuous demarcation between operculum and hydrotheca, corroborating its position in the genus Lovenella. Considering the new evidences presented, we propose the maintenance of the species L. gracilis in the genus Lovenella, and corroborate the synonymy of Dipleuron and Lovenella.

An annotated catalogue of the gamasid mites associated with small mammals in Asiatic Russia. The family Hirstionyssidae (Acari: Mesostigmata: Gamasina)

Zootaxa ◽  
2020 ◽  
Vol 4838 (1) ◽  
pp. 102-118
Author(s):  
MAXIM V. VINARSKI ◽  
NATALIA P. KORALLO-VINARSKAYA
Keyword(s):  
Host Range ◽  
Small Mammals ◽  
Russian Far East ◽  
Far East ◽  
Mite Species ◽  
Taxonomic Position ◽  
The Third ◽  
The Family ◽  
Gamasid Mites ◽  
The Russian Far East

This article represents the third (and last) part of the catalogue of ectoparasitic gamasid mites associated with small mammals in Asiatic Russia (Siberia and the Russian Far East). A total of 19 species of the genus Hirstionyssus Fonseca, 1948 are indexed, with data on their taxonomic position, nomenclature, host range, and distribution within the region. As a conclusion, a brief overview of fauna of ectoparasitic gamasid mites parasitising Micromammalia (except bats) of Asiatic Russia is given. In total, 71 mite species belonging to nine genera of three families (Haemogamasidae, Hirstionyssidae, Laelapidae) are recorded and divided among taxonomic and ecological groupings. 

Revision of the family Gastrodoridae (Crustacea, Decapoda), by description of the first species from the Cretaceous

2011 ◽  
Vol 85 (2) ◽  
pp. 226-233 ◽  
Author(s):  
Adiël A. Klompmaker ◽  
Pedro Artal ◽  
René H. B. Fraaije ◽  
John W. M. Jagt
Keyword(s):  
New Species ◽  
Central Europe ◽  
First Record ◽  
Upper Jurassic ◽  
Taxonomic Position ◽  
Southern Europe ◽  
Northern Spain ◽  
The Family ◽  
Reef Environments ◽  
Stratigraphic Range

Representatives of the family Gastrodoridae were exclusively known from Jurassic deposits in central Europe. Here, the first Cretaceous species, Gastrodorus cretahispanicus n. sp., is recorded from reefal strata of the Eguino Formation (Albeniz Unit) of Albian-Cenomanian age, in western Navarra (northern Spain). Not only does the occurrence of the new species extend the stratigraphic range of the family upward for approximately 45 million years into the mid-Cretaceous, it also constitutes the first record of gastrodorids from southern Europe. For over a century, the taxonomic position of the genus Gastrodorus has been debated. It is revised here and the family Gastrodoridae is given a full superfamily status within the Anomura. The genus Eogastrodorus is also redefined. Gastrodorids underwent a remarkable size reduction from the Middle to Upper Jurassic, which may be explained by their migration into reef environments.

Records of cysticercoids of Fimbriarioides tadornae Maksimova, 1976 and Branchiopodataenia gvozdevi (Maksimova, 1988) (Cyclophyllidea, Hymenolepididae) from brine shrimps at the Mediterranean coasts of Spain and France, with a key to cestodes from Artemia spp. from the Western Mediterranean

2009 ◽  
Vol 54 (2) ◽  
Author(s):  
Gergana Vasileva ◽  
Stella Redón ◽  
Francisco Amat ◽  
Pavel Nikolov ◽  
Marta Sánchez ◽  
...  
Keyword(s):  
First Record ◽  
Western Mediterranean ◽  
Ebro Delta ◽  
Cestode Species ◽  
San Pedro ◽  
Artemia Parthenogenetica ◽  
Geographical Record ◽  
Brine Shrimps ◽  
The Mediterranean ◽  
New Geographical Record

AbstractCysticercoids of two cestode species isolated from brine shrimps from the Mediterranean coasts of Spain and France are described. Fimbriarioides tadornae Maksimova, 1976 (adults known as parasites of Tadorna tadorna) was recorded from Artemia parthenogenetica and A. franciscana from Spain (Bras del Port and River Ebro Delta, respectively), and from A. franciscana from Aigues-Mortes, France (new geographical record). Branchiopodataenia gvozdevi (Maksimova, 1988) (adults known as parasites of Larus genei) was recorded from A. parthenogenetica (Bras del Port, Spain), A. salina (San Pedro del Pinatar, Spain) and A. franciscana (River Ebro Delta, Spain); this is the first record of the species in Europe. An illustrated key to cysticercoids of 12 cestode species from Artemia spp. from the Western Mediterranean is proposed.

scholarly journals Spirura carajaensis n. sp. (Nematoda: Spiruridae), parasite of Proechimys roberti Thomas 1901 (Rodentia: Echimyidae) from Brazilian Amazon

2015 ◽  
Vol 52 (1) ◽  
pp. 28-33 ◽  
Author(s):  
H. da Costa Cordeiro ◽  
F. Tiago de Vasconcelos Melo ◽  
A. Maldonado Jr. ◽  
J. Nascimento Dos Santos
Keyword(s):  
New Species ◽  
Light Microscopy ◽  
Brazilian Amazon ◽  
First Record ◽  
National Forest ◽  
Esophageal Mucosa ◽  
The Family ◽  
Males And Females ◽  
Left Spicule ◽  
A New Species

SummaryA new species of nematode, from the family Spiruridae, is described using parasites from the esophageal mucosa of Proechimys roberti (Rodentia: Echimyidae), which were obtained during a fauna survey in the Tapirapé-Aquirí National Forest, Carajás Reserve, Brazil, Eastern Brazilian Amazon. The helminthes were collected from the esophagus, fixed and processed for light microscopy. Spirura carajaensis n. sp. differs from other species in the genus because it has a left spicule with a well-developed sheath, which is leaf-shaped and covers the terminal half of the spicule. Males and females have a small appendix on the caudal end. This structure has not been reported before for this genus. The present study reports the first record of parasitism by Spirura in rodents of the genus Proechimys in Brazil and in the Amazon biome.

Redescription of Decorataria decorata (Spirurida, Acuariidae) based on nematodes from Podiceps cristatus and P. grisegena (Aves, Podicipediformes) from Bulgaria

2008 ◽  
Vol 53 (2) ◽  
Author(s):  
Yasen Mutafchiev ◽  
Boyko Georgiev
Keyword(s):  
Light Microscopy ◽  
Dorsal Surface ◽  
Geographical Record ◽  
Sem Study ◽  
Podiceps Cristatus ◽  
New Geographical Record ◽  
Microscopy Examination

AbstractDecorataria decorata (Cram, 1927) is redescribed on the basis of light-microscopy and SEM observations on specimens collected from the stomach of Podiceps cristatus and P. grisegena from Bulgaria. The SEM study revealed the presence of a porebearing field on each pseudolabium and a pair of spines (one dorsal and one ventral) situated between bases of the cordons. The deirids are spine-like and minute. The light-microscopy examination showed the presence of ornamentation situated under the dorsal surface of caudal alae. The occurrence of D. decorata in Bulgaria is a new geographical record.

scholarly journals Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae)

2016 ◽  
Vol 46 (2) ◽  
pp. 127-132 ◽  
Author(s):  
Joana Patrícia Pantoja Serrão FILGUEIRA ◽  
Tatiani Yuriko Souza KIKUCHI ◽  
Márlia Regina COELHO-FERREIRA
Keyword(s):  
Light Microscopy ◽  
Longitudinal Section ◽  
First Record ◽  
Extrafloral Nectaries ◽  
Evolutionary Significance ◽  
Nodal Region ◽  
New Findings ◽  
The Family ◽  
Secretory Tissue ◽  
Functional Knowledge

ABSTRACT Nodal glands are found in one third of the Polygalaceae genera and have valuable taxonomic, ecological and evolutionary significance. In Brazil, they occur in five of the eleven genera already registered. However, there is still a controversy regarding the origin of these structures. The objective of this study was to characterize the morphology and the origin of nodal glands inCaamembeca spectabilis, in order to increase the structural and functional knowledge of these glands in the genera. Samples of nodal regions were collected, fixed and processed according to the methods of light microscopy and electron scanning. Ants were observed and identified along the stem axis. The glucose in exudate allows us to classify these glands as extrafloral nectaries. They are located in pairs on the nodal region. However, its origin is in the leaf trace. In the longitudinal section, the nectaries were present in the apex of cells with anticlinal walls impregnated with suberin, which represents the first record for the family. In this region there is also the formation of a hole by lysis. The secretory tissue is surrounded by phloem. Xylem vessels were observed only on the basis of the nectary, where there are also idioblasts with crystals in druse type. We have studied the ontogeny of the glands nodal in Caamembeca spectabilis and unveiled that these glands are linked to the leaves as stipular nectaries. In addition, the new findings presented here may add support for the understanding of morphology and anatomy of nodal glands in Caamembeca.

A new species of the family Trochometridiidae (Acari: Heterostigmatina) associated with Paulusiella sp. (Coleoptera: Elateridae) from Iran

Zootaxa ◽  
2011 ◽  
Vol 2746 (1) ◽  
pp. 57 ◽  
Author(s):  
ABDOLAZIM MORTAZAVI ◽  
HAMIDREZA HAJIQANBAR ◽  
ALIREZA SABOORI
Keyword(s):  
New Species ◽  
Host Range ◽  
First Record ◽  
Mite Species ◽  
The Family ◽  
A New Species

The mite species Trochometridium kermanicum Mortazavi & Hajiqanbar sp. nov. (Acari: Heterostigmatina: Trochometridiidae) associated with an elaterid beetle of the genus Paulusiella (Insecta: Coleoptera) is described from Iran. This is the first record of association between trochometridiid mites and beetles of the family Elateridae. The host range of the family Trochometridiidae is reviewed and a key to world genera and species is provided.

Pitting of Transfusion Tracheids in Cupressaceae

1988 ◽  
Vol 36 (1) ◽  
pp. 81 ◽  
Author(s):  
PA Gadek ◽  
CJ Quinn
Keyword(s):  
Light Microscopy ◽  
Adaptive Significance ◽  
Cell Lumen ◽  
Bordered Pits ◽  
The Family ◽  
Semithin Sections ◽  
The One ◽  
Transformation Series ◽  
Sem Studies

The morphology and development of the circular bordered pits on the transfusion tracheids in the leaves of Callitris muelleri are described from light microscopy of semithin sections and SEM studies of cut surfaces. Two parallel bars of thickening develop on the pit border either side of the aperture, and trabecula-like outgrowths develop into the cell lumen from the centre of each bar. These outgrowths are often contorted and may anastomose with the wall or each other. Development is arrested at the barred stage in occasional pits, and both 'barred' and 'trabeculate' pits may occur in the one cell. 'Trabeculate-pitting' occurs in all species of Callitris and Actinostrobus, and was also observed in species of Cupressus and Juniperus. Previous reports of outgrowths on pits in several species of the last two genera suggest that the trabeculate pit is characteristic of both. 'Barred pits' occur in Widdringtonia cupressoides and Catocedrus decurrens. Unadorned circular bordered pits are characteristic of Diselma archeri, and have previously been reported in a range of genera in the family. These three types of pit are considered to represent an evolutionary transformation series in which the last type is plesiomorphic. The occurrence of the apomorphic conditions in both northern and southern hemi- sphere genera does not fit well with the present taxonomy of the family. The probable adaptive significance of the trabeculate pit is discussed.

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