scholarly journals Two new species of philometrid nematodes (Philometridae), Barracudia notabilis n. sp. and Philometra consimilis n. sp., from the ovary of the hound needlefish Tylosurus crocodilus (Belonidae) off Florida, USA

2021 ◽  
Vol 58 (3) ◽  
pp. 271-280
Author(s):  
F. Moravec ◽  
M. D. Bakenhaster
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Body Length ◽  
Atlantic Coast ◽  
The Body ◽  
Unique Structure ◽  
Two New Species ◽  
Electron Microscopical ◽  
Gravid Females ◽  
Scanning Electron

Summary Two new species of philometrid nematodes (Philometridae), Barracudia notabilis n. sp. and Philometra consimilis n. sp., are described from males found in the ovary of the hound needlefish Tylosurus crocodilus (Péron et Lesueur) (Belonidae) from off the Atlantic coast of Florida, USA. Both species are described and illustrated based on light and scanning electron microscopical examinations. Barracudia notabilis n. sp., the first representative of this genus from fishes in the Atlantic Ocean, can be differentiated from other congeners by the body length of the male (2.69 mm), the length of the gubernaculum (57 μm) and spicules (81 μm), and by the shape of the gubernaculum. Philometra consimilis n. sp. differs from all congeners mainly in the unique structure of the distal tip of the gubernaculum (bearing two smooth dorsal barbs) and the species is also characterized by the length of spicules (111 μm) and the length of the gubernaculum (84 μm). Further studies are needed to discover and describe so far unknown gravid females of Barracudia spp.

Two new species of Styela (Tunicata: Ascidiacea) from the tropical West Atlantic Ocean

Zootaxa ◽  
2021 ◽  
Vol 4948 (2) ◽  
pp. 275-286
Author(s):  
RODOLFO CORRÊA DE BARROS ◽  
ROSANA MOREIRA DA ROCHA
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Shallow Water ◽  
Atlantic Coast ◽  
The Body ◽  
The South ◽  
Bocas Del Toro ◽  
Espírito Santo ◽  
Two New Species ◽  
Espirito Santo

Two new species of the genus Styela are described, with very rare characteristics in this genus: both are shallow-water and tropical, with more than two gonads in each side of the body. Styela panamensis sp. nov. is described from specimens collected in Bocas del Toro, Atlantic coast of Panama, and Styela multicarpa sp. nov. from specimens collected in Espírito Santo, Brazil and Margarita Island, Venezuela. They are probably native to the south Caribbean and S. multicarpa sp. nov. is introduced in Brazil. 

Morphological investigation and description of two new Gomphonema Ehrenberg (Bacillariophyta) species from India and Vietnam with biogeographical comments

Phytotaxa ◽  
2020 ◽  
Vol 468 (2) ◽  
pp. 175-189
Author(s):  
SAMADHAN PARDHI ◽  
ANBUKKARASU VIGNESHWARAN ◽  
J. PATRICK KOCIOLEK ◽  
ANTON GLUSHCHENKO ◽  
MAXIM KULIKOVSKIY ◽  
...  
Keyword(s):  
New Species ◽  
Morphological Investigation ◽  
Freshwater Diatoms ◽  
Two New Species ◽  
Electron Microscopical ◽  
The Tropics ◽  
Scanning Electron

Two new species of Gomphonema Ehrenberg are described based on light and scanning electron microscopical observations. These are Gomphonema kallarense sp. nov. found in India and G. kezlyae sp. nov. found in India and Vietnam. We also report and document the morphology and variability of G. doonense from Vietnam, a species previously described from India based on a limited number of valves. Both G. doonense and G. kallarense have striae composed of doubly-punctate striae that are without occlusions, while G. kezlyae has striae with single rows of areolae that have external occlusions giving the impression of C-shaped openings. Our investigation shows that India and Vietnam share some species in common, adding additional evidence that the biogeography of freshwater diatoms from the tropics warrants future investigation.

Two new species of philometrid nematodes (Nematoda: Philometridae) in Epinephelus coioides (Hamilton, 1822) from the South Bali Sea, Indonesia

Zootaxa ◽  
2013 ◽  
Vol 3609 (1) ◽  
pp. 49-59 ◽  
Author(s):  
KARTIKA DEWI ◽  
HARRY W. PALM
Keyword(s):  
New Species ◽  
Body Length ◽  
Total Body Length ◽  
Middle Part ◽  
The Body ◽  
Epinephelus Coioides ◽  
The South ◽  
Fish Family ◽  
Two New Species ◽  
Total Body

Based on light and scanning electron microscopy, two new species of philometrid nematodes, Spirophilometra endangae sp. nov. and Philometra epinepheli sp. nov. (Nematoda: Dracunculoidea: Philometridae) are described from Epinephelus coioides (Hamilton, 1822) (Perciformes: Serranidae) from the South Bali Sea, Indonesia. Spirophilometra endangae sp. nov. was isolated from the fins of E. coioides. The new species can be distinguished from the most closely related S. eichleri Parukhin, 1971 by a larger total body length and the site of infection in the host. The new species differs from S. centropomi (Caballero, 1974) also in the larger body size of the gravid females and the site of infection in the host. S. en-dangae sp. nov. differs from S. pacifica (Moravec, Santana-Pineros, Gonzales-Solis & Torres-Huerta, 2007) in the struc-ture and arrangement of the spines on the middle part of the body, the infection site of the worm, the type host and the zoogeographical host distribution. Philometra epinepheli sp. nov. differs from all other Philometra spp. congeners so far recorded from Ephinepelus groupers in the total body length and the site of infection. This is the first opercula-infecting species of Philometra described from the fish family Serranidae.

Taxonomic studies of the diatom genus Halamphora (Bacillariophyceae) from the mountainous regions of southwest China, including the description of two new species

Phytotaxa ◽  
2015 ◽  
Vol 205 (2) ◽  
pp. 75 ◽  
Author(s):  
You Qingmin ◽  
John Patrick Kociolek ◽  
Wang Quanxi
Keyword(s):  
New Species ◽  
Southwest China ◽  
New Combinations ◽  
Mountainous Regions ◽  
Two New Species ◽  
Diatom Genus ◽  
Electron Microscopical ◽  
Taxonomic Studies ◽  
Scanning Electron ◽  
Alkaline Waters

In this study, we describe two new Halamphora species (Halamphora subfontinalis and H. hezhangii) and identify three species newly recorded in China (H. elongata, H. submontana and H. tenella) and two others previously recorded from China (H. montana and H. dusenii), as well as make preliminary observations on three interesting and unnamed Halamphora species. For all ten taxa observations were made using light microscopy and for the new taxa scanning electron microscopical observations were also made. Comparisons of morphological features are made with similar, previously-described taxa. All of these Halamphora species were found in alkaline waters (7.2 < pH < 9.7) in the mountainous regions of southwest China, including Tibet, Yunnan and Guizhou Provinces. In addition, we list in Halamphora twenty taxa previously recorded from China in the genus Amphora, resulting in two new combinations.

scholarly journals Two new meiofaunal species of Trilobodrilus (Dinophilidae, Annelida) from California, USA

2018 ◽  
Author(s):  
Alexandra Kerbl ◽  
Emilie Hernes Vereide ◽  
Brett C. Gonzalez ◽  
Greg W. Rouse ◽  
Katrine Worsaae
Keyword(s):  
New Species ◽  
Body Length ◽  
San Diego ◽  
Phylogenetic Analyses ◽  
The Body ◽  
Ciliary Band ◽  
Two New Species ◽  
Molecular Phylogenetic

We describe two new species of the annelid genus Trilobodrilus Remane, 1925 (Dinophilidae Verill, 1892) from an intertidal and a subtidal location in San Diego, California. These two species show morphological and molecular divergences between each other and the previously described, geographically distant species. Intertidal T. windansea sp. nov. differs from subtidal T. ellenscrippsae sp. nov. most remarkably in the number and pattern of ciliary tufts and bands on the prostomium and along the body length, besides showing ca 15% difference in gene fragments of COI and CytB. Trilobodrilus windansea sp. nov., though nesting with T. ellenscrippsae sp. nov. in the molecular phylogenetic analyses, morphologically resembles the Japanese T. itoi Kajihara, Ikoma, Yamasaki & Hiruta, 2015 most closely, but still differs from this species in the higher number of apical ciliary tufts, an additional ciliary row posterior to the second ciliary band, and by lacking a forth ciliary band and segmentally arranged lateral ciliary tufts. Trilobodrilus ellenscrippsae sp. nov. is morphologically most similar to the Japanese T. nipponicus Uchida & Okuda, 1943, but is much shorter, has more apical ciliary tufts, and less regularly arranged lateral ciliary tufts along the body. All species differ significantly in all compared gene fragments, and no obvious correlation was found between habitat and the species morphology or relationships.

New diatom species from the Gomphonema subtile group in Southeast Asia

Phytotaxa ◽  
2017 ◽  
Vol 329 (3) ◽  
pp. 223 ◽  
Author(s):  
ANTON GLUSHCHENKO ◽  
MAXIM KULIKOVSKIY ◽  
JOHN PATRICK KOCIOLEK
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Species Distribution ◽  
Species Complex ◽  
Diatom Species ◽  
Tropical Zone ◽  
Two New Species ◽  
Electron Microscopical ◽  
The Town ◽  
Scanning Electron

Two new diatom species from the Gomphonema subtile species complex were found in Đả Tiên reservoir, near the Town of Ðà Lạt, Lâm Đồng Province, Vietnam, as well as in the River Nam Leuk, Phou Khao Khouay, Laos. These new species include Gomphonema dalatica Glushchenko, Kulikovskiy & Kociolek sp. nov. and Gomphonema prowsei Glushchenko, Kulikovskiy & Kociolek sp. nov. Additionally, G. pantropicum Reichardt, a species known from the tropical zone, was found in our material. We provide light and scanning electron microscopical observations for all taxa, and offer formal descriptions for the two new species. Distribution of these three species is discussed.

Two new species of the genus Galumna (Acari: Oribatida: Galumnidae) from China

2018 ◽  
Vol 23 (4) ◽  
pp. 603
Author(s):  
Wenqin Liang ◽  
Maofa Yang ◽  
Guoru Ren
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Body Length ◽  
The Body ◽  
Two New Species ◽  
Surface Length ◽  
Porose Area ◽  
Median Pore

Two new species of Galumna Heyden, 1826, Galumna (Galumna) wuzhishanensis sp. nov. and Galumna (Galumna) longisensilla sp. nov., are described from soil and leaf litter samples in Hainan and Guizhou Provinces, China. Adults of Galumna (Galumna) wuzhishanensis sp. nov., is morphologically most similar to Galumna (Galumna) acutirostrum Ermilov, 2010, however it differs from the latter by the body length and pattern of surface, length of interlamellar setae, location of im and the absence of median pore and postanal porose area. Adults of Galumna (Galumna) longisensilla sp. nov., is morphologically most similar to Galumna (Galumna) calva Starý, 1997, but differs by the shape of Aa and location of gla, size of A3 and the presence of postanal porose area.   

Two new species of Entomelas (Nematoda: Rhabdiasidae), parasites of Barisia spp. and Mesaspis spp. (Reptilia: Sauria) in Mexico

Zootaxa ◽  
2005 ◽  
Vol 958 (1) ◽  
pp. 1 ◽  
Author(s):  
ELIZABETH A. MARTÍNEZ-SALAZAR ◽  
VIRGINIA LEÓN-RÈGAGNON
Keyword(s):  
New Species ◽  
Body Length ◽  
Egg Size ◽  
New World ◽  
Tail Length ◽  
Buccal Capsule ◽  
The Body ◽  
Length Ratio ◽  
Two New Species

Entomelas campbelli n. sp. (Rhabdiasidae) from the lungs of Barisia imbricata and Mesaspis gadovii (Sauria) and Entomelas floresvillelai n. sp. from B. imbricata, B. herrerae and M. viridiflava (Sauria) are described and illustrated. Both species are similar to E. duellmani in the equatorial location of vulva; E. campbelli resembles E. duellmani in measurements of the buccal capsule, but differs in the shape of the tail, body length, egg size, esophagus length and tail length/body length ratio; E. floresvillelai resembles E. duellmani by possessing a blunt tail, but differs in the body length, egg size, depth of the buccal capsule, length of the esophagus and tail length/ body length ratio. Entomelas campbelli differs from E. florevillelai in the shape of the anterior end and the tail, width of the body and buccal capsule, width of the esophageal bulb, egg size and esophagus length/body length ratio. These are the second and third species assigned to New World Entomelas and the second record of the genus from Mexico.

On Two New Species of Lytocestus from Burma and the Sudan Respectively

1956 ◽  
Vol 30 (2-3) ◽  
pp. 87-96 ◽  
Author(s):  
Jean A. Lynsdale
Keyword(s):  
New Species ◽  
Body Length ◽  
Type Species ◽  
The Body ◽  
Cortical Parenchyma ◽  
Two New Species ◽  
Uterine Glands ◽  
Longitudinal Muscles

The sub-family Lytocestinae was created by Hunter (1927) to accommodate five genera—Lytocestus Cohn, 1908 (type genus), Balanotaenia Johnston, 1924, Monobothrioides Fuhrmann and Baer, 1925, Djombangie Bovien, 1926, and Lytocestoides Baylis, 1928. He based the characteristics of the sub-family on the broad characters of the type genus, e.g. “Sub-family Lytocestinae Hunter, 1927. Sub-family diagnosis: Caryophyllaeidae with sexual apertures and ovary situated in the last quarter of the body length. The inner longitudinal muscles lie entirely internal to the vitellaria which are annularly arranged about the muscles in the cortical parenchyma. Uterine glands are present. Type genus Lytocestus Cohn, 1908.” All the foregoing characteristics are present in Lytocestus. Sub-sequently, two more genera, Khawia Hsu, 1935, and Stocksia Woodland, 1937 have been added, making a total of seven genera.According to Woodland (1926) the genus Lytocestus includes the following species: L. adhaerens Cohn, 1908 (type species), L. filiformis (Woodland, 1923), L. chalmersius (Woodland, 1924), L. cunningtoni (Fuhrmann and Baer, 1925), L. indicus (Moghe, 1925), and Balanotaenia bancrofti Johnston, 1924.

A new species of Philometra (Nematoda, Philometridae) from the gonads of the rock hind Epinephelus adscensionis (Osteichthyes) from the southern Gulf of Mexico

2007 ◽  
Vol 52 (4) ◽  
Author(s):  
František Moravec ◽  
Guillermo Salgado-Maldonado
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
Body Length ◽  
Gravid Female ◽  
Marine Fishes ◽  
The Body ◽  
Southern Gulf Of Mexico ◽  
Gravid Females ◽  
Original Species ◽  
A New Species

AbstractA new species of parasitic nematode, Philometra mexicana sp. nov. (Philometridae), is described based on males and females parasitizing the gonads of the marine perciform fish (rock hind) Epinephelus adscensionis (Osbeck) (Serranidae) off the coast of the southern Gulf of Mexico (reefs of the Enmedio Island, Veracruz), Mexico, collected on 10 April 1990. The new species is characterized mainly by very small males (body length 1.63–1.86 mm) with equally long, needle-like spicules (length 90–120 μm) and the gubernaculum (57–66 μm) without the usual dorsal barb on the distal end, the body length of gravid females (178–230 mm), the presence of a well-developed anterior bulbous inflation on the female oesophagus, and by the length of the first-stage larvae (420–435 μm). A comparison with other congeners parasitizing the gonads of marine fishes is provided. The cephalic end of the gravid female of Philometra margolisi Moravec, Vidal-Martínez et Aguirre-Macedo, 1995, another related species from the gonads of Epinephelus [E. morio (Valenciennes)] in Mexico, has been studied by SEM for the first time; it confirms the arrangement of the cephalic papillae as reported in the original species description. Philometra mexicana is the fifth species of Philometra reported from the gonads of marine fishes in the West Atlantic region.

Sign in / Sign up

Export Citation Format

Share Document