Description of a new species of opalinid by light microscopy, SEM and TEM: Protoopalina polykineta, n. sp. from the intestines of the surgeonfish, Acanthurus nigrofuscus

1996 ◽  
Vol 32 (1) ◽  
pp. 81-89 ◽  
Author(s):  
J. Norman Grim ◽  
Kendall D. Clements
Keyword(s):  
New Species ◽  
Light Microscopy ◽  
Sem And Tem ◽  
A New Species ◽  
Acanthurus Nigrofuscus

A new species of Acanthella Schmidt, 1862 (Porifera, Demospongiae, Dictyonellidae) from northeast region, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4555 (2) ◽  
pp. 291
Author(s):  
ELIELTON NASCIMENTO ◽  
THAYNÃ CAVALCANTI ◽  
ULISSES PINHEIRO
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Light Microscopy ◽  
Valid Species ◽  
Taxonomic Identification ◽  
Herbaceous Species ◽  
Northeast Region ◽  
A New Species ◽  
Scanning Electron

Acanthella Schmidt, 1862 species are characterized by choanosomal skeleton of dendritic tracts cored by interwoven sinuously bent strongyles or strongyloxeas and echinated by straight styles, oxeas or anisoxeas (Van Soest et al. 2002). The genus Acanthella comprises 33 valid species, with six known from the Atlantic Ocean (Van Soest et al. 2018). Previously, the only record for Brazil was A. flagelliformis (Van Soest & Stentoft, 1988) (Muricy 2018). Species of the genus include a transition from shrub like ‘Axinellas’ and herbaceous species similar to the genus Suberites Nardo, 1833 (Schmidt 1862; Vosmaer 1912). Due to its heterogeneous complex of species, Acanthella has been confused with other axinellids. Similarities were seen in genera such as Phakellia (Van Soest et al. 2002), which shares spicule complement and comparable choanosomal skeletons. In the present study, we describe a new species of Acanthella from oceanographic expeditions of the northeast region of Brazil. Two specimens of Acanthella sp. nov. were collected by dredging at Ceará and Pernambuco State, Brazil. All specimens were preserved in 92% ethanol and deposited in the Porifera Collections at the Universidade Federal de Pernambuco (UFPEPOR). The taxonomic identification was carried out through analysis of spicules morphologies, using Light Microscopy (LM) and Scanning Electron Microscopy (SEM), following methods described by Hajdu et al. (2011). 

Ranunculus solhanensis (Ranunculaceae), a new species from eastern Turkey

Phytotaxa ◽  
2021 ◽  
Vol 497 (2) ◽  
pp. 157-164
Author(s):  
ALİ SİNAN ◽  
LÜTFİ BEHÇET ◽  
YAKUP YAPAR
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Light Microscopy ◽  
Conservation Status ◽  
Eastern Anatolia ◽  
Ecological Data ◽  
East Anatolia ◽  
A New Species ◽  
Scanning Electron

Ranunculus solhanensis sp. nov. (Ranunculaceae) is described from Bingöl province (Eastern Anatolia) in Turkey. It is related to R. bulbilliferus and R. munzurensis also distributed in east Anatolia. The new species is easily distinguished from its relatives by morphological features of stem, corolla, stamen and achenes. Achenes and pollen characteristics have been assessed by light microscopy and scanning electron microscopy. Distribution, ecological data and IUCN conservation status of the new species are also provided.

A new species of aplanosporic Haptoglossa, H. beakesii, with vesiculate spore release

Botany ◽  
2010 ◽  
Vol 88 (1) ◽  
pp. 93-101 ◽  
Author(s):  
S. L. Glockling ◽  
L. C. Serpell
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
New Species ◽  
Light Microscopy ◽  
Dense Body ◽  
Central Nucleus ◽  
Transmission Electron ◽  
Spore Release ◽  
The University ◽  
A New Species

A new species of Haptoglossa , Haptoglossa beakesii sp. nov., a nematode parasite found in a sample of compost and rabbit dung at the University of Sussex campus, is described. The species, which infects nematodes of the genus Rhabditis , is unusual because it releases non-motile spores into a retaining vesicle. Aspects of the development and reproduction of the species are illustrated with light microscopy and transmission electron microscopy (TEM). TEM revealed a typical multinucleate thallus which cleaved into un-walled aplanospore initials. Each aplanospore contained a central nucleus closely surrounded by mitochondria and with peripheral dense body vesicles (DBV) and distinctive, layered, encystment vesicles. Aplanospores were expelled into a fine vesicle which later broke down to release cysts. Cysts germinated to produce infective gun cells.

scholarly journals Cotylophoron marajoensis n. sp. (Digenea: Paramphistomidae) a parasite of Bubalus bubalis on Marajó Island, Pará, Brazilian Amazon

2020 ◽  
Vol 29 (4) ◽  
Author(s):  
Vanessa Silva do Amaral ◽  
Diego Ferreira de Sousa ◽  
Raimundo Nonato Moraes Benigno ◽  
Raul Henrique da Silva Pinheiro ◽  
Evonnildo Costa Gonçalves ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Biology ◽  
Light Microscopy ◽  
Brazilian Amazon ◽  
First Record ◽  
Bubalus Bubalis ◽  
Scanning Electronic Microscopy ◽  
Electronic Microscopy ◽  
Marajó Island ◽  
A New Species

Abstract The genus Cotylophoron belongs to the Paramphistomidae family and its definitive hosts are ruminants in general. This work describes the presence of a new species of the gender, a parasite in the rumen and reticulum of Bubalus bubalis, on Marajó Island in the Eastern Brazilian Amazon, using of light microscopy, scanning electronic microscopy and molecular biology techniques. One hundred and ten animals were analyzed, of which 4.54% were parasitized by flukes in their adult forms. The helminths were found fixed to the ruminal mucosa and present Liorchis-type pharynx, Cotylophoron-type genital sucker, oblique testicles larger than the ovary, uterus in rings full of eggs and Cotylophoron-type acetabulum. These morphologic characters do not fit into any previously described species. Thus, it is proposed that this is a new species in the genus Cotylophoron. The present work expands the record of parasitism by helminths in Bubalus bubalis, this being the first record of trematoda from the genus Cotylophoron for this host in the Brazilian Amazon.

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.

A histology-free description of a new species of the genus Tetrastemma (Nemertea: Hoplonemertea: Monostilifera) from Hawaii and India

Zootaxa ◽  
2020 ◽  
Vol 4808 (2) ◽  
pp. 379-383
Author(s):  
ALEXEI V. CHERNYSHEV ◽  
NEONILA E. POLYAKOVA ◽  
MOHANDHAS S. VIGNESH ◽  
RUCHI P. JAIN ◽  
PRAKASH SANJEEVI ◽  
...  
Keyword(s):  
New Species ◽  
Cytochrome C ◽  
Light Microscopy ◽  
Cytochrome C Oxidase ◽  
Histone H3 ◽  
Gene Markers ◽  
Oxidase Subunit ◽  
Internal Morphology ◽  
A New Species ◽  
Microscopy Examination

A new species of the genus Tetrastemma Ehrenberg, 1831, T. freyae sp. nov., is described and illustrated from Hawaii and India. The description is based on light microscopy examination of the external and internal morphology, as well as on two gene markers (cytochrome c oxidase subunit I and histone H3 DNA). 

Another New Thai Argyreia Species (Convolvulaceae)

Phytotaxa ◽  
2015 ◽  
Vol 204 (3) ◽  
pp. 223 ◽  
Author(s):  
GEORGE W. STAPLES ◽  
Paweena Traiperm ◽  
JANENY CHOW
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Light Microscopy ◽  
Leaf Surface ◽  
Microscopic Features ◽  
A New Species ◽  
Scanning Electron

A new species of Argyreia (Convolvulaceae) from Thailand is described and illustrated: A. albiflora. The morphological distinctions of this new species and its relationships with allied species are discussed. Micromorphological evidence is presented using scanning electron microscopy (SEM) and light microscopy (LM) demonstrating that microscopic features of the upper leaf surface are useful in separating species that are similar on a macromorphological level.

A new species of Aspiculuris Schulz, 1924 (Nematoda, Heteroxynematidae) from the gray-sided vole, Clethrionomys rufocanus (Rodentia, Cricetidae), from Tianjin, China

2012 ◽  
Vol 57 (3) ◽  
Author(s):  
Baochen Liu ◽  
Yanzhen Bu ◽  
Luping Zhang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Light Microscopy ◽  
Clethrionomys Rufocanus ◽  
A New Species ◽  
Scanning Electron

AbstractAspiculuris tianjinensis sp. nov. recovered from the intestine of Clethrionomys rufocanus from Tianjin, China is described and illustrated using light microscopy and scanning electron microscopy. The new species differs from congeners in the shape of the cervical alae, and the number and arrangement of caudal papillae.

scholarly journals A new species of Aplectana (Nematoda: Cosmocercidae) parasite of Pleurodema nebulosum (Anura: Leptodactylidae) from the Monte desert, Argentina, with a key to Neotropical species of the genus Aplectana

Zootaxa ◽  
2017 ◽  
Vol 4247 (2) ◽  
pp. 121 ◽  
Author(s):  
MAURICIO D. PIÑEIRO GOMEZ ◽  
CYNTHYA E. GONZÁLEZ ◽  
EDUARDO A. SANABRIA
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Light Microscopy ◽  
Caudal Region ◽  
Monte Desert ◽  
Neotropical Species ◽  
A New Species ◽  
Scanning Electron ◽  
Shape And Size

Here we describe a new cosmocercid nematode, Aplectana nebulosa sp. nov., from the small and large intestines of Pleurodema nebulosum (Anura: Leptodactylidae), from the Monte desert of San Juan, Argentina. The new species belongs to the Aplectana group that possesses a gubernaculum and unpaired adcloacal papilla anteriorly to cloaca. It resembles A. membranosa, A. paraelenae and A. travassosi by the presence of four adcloacal papillae, but differs from those species by the following characters: number and arrangement of precloacal papillae; number and arrangement of postcloacal papillae; shape and size of spicules and gubernaculum, and by the presence of lateral alae in caudal region of males. The description of the new species is based on light microscopy and scanning electron microscopy (SEM) and we also provide a key to Neotropical species of Aplectana. 

Sign in / Sign up

Export Citation Format

Share Document