Urotricha vitrea n. sp. (Ciliophora, Prorodontina): General morphology and cytological events during the conjugation process

1985 ◽  
Vol 63 (8) ◽  
pp. 1885-1891 ◽  
Author(s):  
Ana Martín-Gonzalez ◽  
Susana Serrano ◽  
Dimas Fernández-Galiano
Keyword(s):  
New Species ◽  
Morphological Characterization ◽  
General Morphology ◽  
Conjugation Process ◽  
A New Species

A new species of gymnostome, Urotricha vitrea n. sp., is proposed. The morphological characterization of this new freshwater ciliate is as follows: 46–27 μm × 43–26 μm in size; a spherical macronucleus; 20–23 somatic kineties; a caudal cilium; brosse with 4, 3, 2 rows of pairs of kinetosomes; and circumoral infraciliature with 13–16 pairs of kinetosomes. In addition, the conjugation process of this species is reported. It includes three maturation divisions and three synkaryon divisions.

scholarly journals Molecular and Morphological Characterization of Colaconema formosanum sp. nov. (Colaconemataceae, Rhodophyta)—A New Endophytic Filamentous Red Algal Species from Taiwan

2021 ◽  
Vol 9 (8) ◽  
pp. 809
Author(s):  
Meng-Chou Lee ◽  
Han-Yang Yeh
Keyword(s):  
New Species ◽  
Large Subunit ◽  
Algal Species ◽  
Morphological Characterization ◽  
Bisphosphate Carboxylase ◽  
The Third ◽  
Red Algal ◽  
Southern Taiwan ◽  
A New Species

The genus Colaconema, containing endophytic algae associated with economically important macroalgae, is common around the world, but has rarely been reported in Taiwan. A new species, C. formosanum, was found attached to an economically important local macroalga, Sarcodia suae, in southern Taiwan. The new species was confirmed based on morphological observations and molecular analysis. Both the large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (rbcL) and cytochrome c oxidase subunit I (COI-5P) genes showed high genetic variation between our sample and related species. Anatomical observations indicated that the new species presents asexual reproduction by monospores, cylindrical cells, irregularly branched filaments, a single pyrenoid, and single parietal plastids. Our research supports the taxonomic placement of C. formosanum within the genus Colaconema. This study presents the third record of the Colaconema genus in Taiwan.

POLLEN MORPHOLOGY OF Ombrophytum villamariensis (BALANOPHORACEAE)

Phytotaxa ◽  
2020 ◽  
Vol 472 (1) ◽  
pp. 74-78
Author(s):  
ANGELO PLATA ◽  
SANTIAGO GUZMÁN-GUZMÁN
Keyword(s):  
New Species ◽  
Pollen Morphology ◽  
Pollen Grains ◽  
Morphological Characterization ◽  
Pollen Grain ◽  
Diagnostic Characters ◽  
A New Species

This study contributes to the morphological characterization of Ombrophytum villamariensis, a new species of Neotropical Balanophoraceae recently described for Colombia. The study revealed the presence of diagnostic characters in the pollen grain such as small size and a circular endoaperture. Unlike other species, only tricolporate pollen grains were observed.

Molecular and morphological characterization of Belondira coomansi n. sp. (Nematoda: Dorylaimida, Belondiridae) from Iran

2017 ◽  
Vol 92 (5) ◽  
pp. 630-636
Author(s):  
B. Golhasan ◽  
R. Heydari ◽  
E. Miraeiz ◽  
J. Abolafia ◽  
R. Peña-Santiago
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Large Subunit ◽  
Morphological Characterization ◽  
Dna Sequence Data ◽  
Anterior Position ◽  
Genital Branch ◽  
General Size ◽  
A New Species

AbstractA new species belonging to the genus Belondira is described from natural areas in Iran. Belondira coomansi n. sp. is characterized by its general size, the dimensions and appearance of its lip region, presence of distinct labial and post-labial sclerotization, the length of the odontostyle and its inconspicuous lumen and aperture, the length of the neck and its pharyngeal expansion, the reduction of the female anterior genital branch to a simple uterine sac, a very short posterior uterus, the anterior position of the vulva, the length and shape of the caudal region with distinctly thick cuticle at its tip, the length of the spicules, and the presence of only one pair of ventromedian supplements. The new species is close to Belondira brevibulba, B. sacchari, B. tenuidens and B. thornei, and it is compared to them. Molecular characterization (D2–D3 expansion segments of the rRNA large subunit) of the new species is also provided, representing only the second species of this genus for which any DNA sequence data are available.

Wyeomyia shannoni Lane & Cerqueira, 1942, a taxonomic puzzle (Diptera: Culicidae): synonymy, genus transfer, homonymy, and description of a new species of Sabethes Robineau-Desvoidy, 1827

Zootaxa ◽  
2021 ◽  
Vol 5082 (3) ◽  
pp. 259-277
Author(s):  
AGOSTINHO C. NASCIMENTO-PEREIRA ◽  
MAYCON SEBASTIÃO ALBERTO SANTOS NEVES ◽  
ANTHONY ÉRICO GUIMARÃES ◽  
MONIQUE DE ALBUQUERQUE MOTTA ◽  
RICARDO LOURENÇO-DE-OLIVEIRA
Keyword(s):  
New Species ◽  
Adult Male ◽  
Morphological Characterization ◽  
Female Genitalia ◽  
Immature Stages ◽  
Senior Synonym ◽  
A New Species ◽  
Female Genital

We discovered the immature stages of Wyeomyia shannoni Lane & Cerqueira, 1942, unknown for almost 80 years, and found that they, as well as the adult male, are identical with those previously described for Sabethes (Peytonulus) paradoxus Harbach, 2002. Consequently, the species described by Lane and Cerqueira is here considered a senior synonym of Sa. paradoxus and is transferred to the genus Sabethes, hereafter named Sabethes (Peytonulus) shannoni (Lane & Cerqueira, 1942), comb. n. As the name shannoni is preoccupied in the genus Sabethes, the species known as Sabethes (Sabethes) shannoni Cerqueira, 1961 is here renamed Sabethes (Sabethes) cerqueirai Nascimento-Pereira, Neves, Lourenço-de-Oliveira & Motta, nom. n. We improved the morphological characterization of Sa. (Pey.) shannoni (Lane & Cerqueira) by including an illustration of the female genitalia, larval mouthparts and the female genital lobe of the pupa. Finally, we describe and illustrate a new species of Sabethes closely related to Sa. (Pey.) shannoni, named Sabethes (Peytonulus) harbachi Nascimento-Pereira, Guimarães, Lourenço-de-Oliveira & Motta, sp. n.  

A taxonomic synopsis and morphological characterization of Myoxanthus (Orchidaceae: Pleurothallidinae)

Phytotaxa ◽  
2021 ◽  
Vol 507 (3) ◽  
pp. 211-258
Author(s):  
GUSTAVO ROJAS-ALVARADO ◽  
MARIO A. BLANCO ◽  
ADAM P. KARREMANS
Keyword(s):  
New Species ◽  
Reproductive Organs ◽  
Morphological Characterization ◽  
General Description ◽  
Taxonomic History ◽  
First Time ◽  
Distinct Taxon ◽  
A New Species

The taxonomic history, general description and distribution are provided for Myoxanthus. Morphological characterization of the vegetative and reproductive organs is illustrated with photographs. A list of the 52 accepted species includes synonyms and distribution; most are illustrated with a flower photograph. Lectotypes for M. frutex, M. lonchophyllus, M. neillii, M. pulvinatus, M. punctatus, and M. serripetalus are designated, and a neotype is selected for M. melittanthus. Myoxanthus parvilabius is reported for the first time for Colombia. The circumscription of M. lonchophyllus is reevaluated, Pleurothallis pennellia is recognized as a distinct taxon and transferred to Myoxanthus, and Myoxanthus panamense, a new species related to M. scandens, is described from Pamana.

A new species of Hippopotamidae (Mammalia, Artiodactyla) from the Sagantole Formation, Middle Awash, Ethiopia

2004 ◽  
Vol 175 (5) ◽  
pp. 525-533 ◽  
Author(s):  
Jean-Renaud Boisserie
Keyword(s):  
New Species ◽  
East Africa ◽  
Fossil Record ◽  
General Morphology ◽  
Middle Awash ◽  
A New Species

Abstract A new species of Hippopotamidae, Hexaprotodon dulu nov. sp., was discovered in the Middle Awash valley, Afar, Ethiopia. It was found in the Sagantole Formation, within volcaniclastic beds aged between 5.2 Ma and 4.9 Ma (40Ar/39Ar). It is therefore the oldest hippo species described as yet from Ethiopia. This hexaprotodont hippo exhibits a general morphology that is primitive, close in that respect to other Mio-Pliocene forms. However, its cranium and dentition display a distinctive association of measurements and features. This new species increases the hippo fossil record in East Africa. It also reinforces the hypothesis of hippo endemism in each African basin as early as the basal Pliocene.

Ultrastructural and molecular characterization of Bacillidium vesiculoformis n. sp. (Microspora: Mrazekiidae) in the freshwater oligochaete Nais simplex (Oligochaeta: Naididae)

Parasitology ◽  
2004 ◽  
Vol 130 (1) ◽  
pp. 31-40 ◽  
Author(s):  
D. J. MORRIS ◽  
R. S. TERRY ◽  
K. B. FERGUSON ◽  
J. E. SMITH ◽  
A. ADAMS
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Infected Cell ◽  
Host Cell ◽  
Developmental Stages ◽  
Parasite Development ◽  
Adhesive Quality ◽  
Transmission Studies ◽  
A New Species

The development of a new species, Bacillidium vesiculoformis n. sp. (Microspora, Mrazekiidae), is described from the freshwater oligochaete Nais simplex (Oligochaeta, Naididae). Initial stages of parasite development consist of a monokaryotic merogony within a haemocyte of the intestinal blood sinus. The resulting hypertrophied haemocyte is attached to the chloragocytes of the sinus by fine cytoplasmic extensions with the sinus around the cell becoming greatly enlarged. The meronts within the haemocyte form diplokaryotic sporonts that undergo sporogenesis directly within the cytoplasm of the host cell. The infected cell becomes packed with spores and developmental stages, causing it dramatically to increase in size, eventually rupturing the oligochaete and cell. Sporogony appears to be disporoblastic. Released spores were observed to have an adhesive quality. Transmission studies conducted with mature spores failed to transmit the parasite horizontally although vertical transmission was observed. Phylogenetic analysis of the parasite demonstrated that B. vesiculoformis clustered with microsporidian parasites of bryozoa and two other microsporidians, Janacekia debaiseuxi and an unidentified Bacillidium sp.

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