scholarly journals Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species

2020 ◽  
Author(s):  
Charlotte Goeyers ◽  
Bart Van de Vijver
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Similar Species ◽  
Centric Diatom ◽  
Diatom Flora ◽  
Southern Pacific Ocean ◽  
Electron Microscopical ◽  
First Time ◽  
Campbell Island ◽  
Made In

During a survey of the moss-inhabiting diatom flora of the sub-Antarctic Campbell Island, located in the southern Pacific Ocean, several unknown centric diatoms were observed that could not be identified using the currently available literature. Detailed light and scanning electron microscopical observations and comparisons with the characters of several species of Melosira, Angusticopula, Ferocia and Arcanodiscus worldwide indicated that five of them should be described as new to science: Angusticopula cosmica Goeyers & Van de Vijver sp. nov., Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov., A. indistinctus Goeyers & Van de Vijver sp. nov., A. saundersianus Goeyers & Van de Vijver sp. nov. and Ferocia houkiana Goeyers & Van de Vijver sp. nov. A sixth species, Angusticopula chilensis, was illustrated for the first time using SEM and as a result is considered to differ sufficiently from A. dickiei to warrant epitypification as A. chilensis. The new species were first described in genera that formerly were included within the genus Melosira. All six species are morphologically characterized and compared with similar species within their respective genera. Their presence and distribution on Campbell Island are discussed based on the observations made in the available samples.

Frankophila dalevittii, a new freshwater diatom (Bacillariophyta) from Campbell Island

Phytotaxa ◽  
2020 ◽  
Vol 429 (1) ◽  
pp. 57-64
Author(s):  
BART VAN DE VIJVER ◽  
PETRA BALLINGS ◽  
CHARLOTTE GOEYERS
Keyword(s):  
New Species ◽  
Morphological Analysis ◽  
New Taxon ◽  
Diatom Flora ◽  
Southern Pacific Ocean ◽  
Electron Microscopical ◽  
Campbell Island ◽  
A New Species ◽  
Scanning Electron ◽  
Freshwater Diatom

During a survey of the freshwater diatom flora of the sub-Antarctic Campbell Island, located in the southern Pacific Ocean, an unknown freshwater diatom was observed forming long colonies using linking spines. Detailed morphological analysis based on light and scanning electron microscopical observations and comparison with all known Frankophila taxa worldwide justified the description of this unknown taxon as a new species within the genus Frankophila: Frankophila dalevittii Van de Vijver & Goeyers sp. nov. The new taxon is characterized by the presence of well-developed linking spines, the absence of external raphe slits and the presence of internal raphe slits, biseriate striae composed of relatively large areolae and a large axial area. Despite the absence of the external raphe slits, the species is best placed within the genus Frankophila. The new species is described and illustrated and compared with all other Frankophila taxa.

Alkaliphilic species Euastrum lacustre (Charophyta, Zygnematophyceae), first record from Russia

2020 ◽  
Vol 54 (2) ◽  
pp. 313-320
Author(s):  
O. V. Anissimova
Keyword(s):  
Cell Wall ◽  
New Species ◽  
First Record ◽  
European Russia ◽  
Similar Species ◽  
Morphological Differences ◽  
First Time ◽  
Kursk Region

Euastrum lacustre is reported for Russia for the first time. This alcaliphilic species was found in the periphyton and plankton of three lakes in the Kursk Region (European Russia). A description of morphology, including the relief of cell wall, and habitats where this taxon is found are represented. LM and SEM microphotographs are provided. Morphological differences of E. lacustre from similar species are discussed. New species for region, namely Closterium aciculare, Cosmarium formosulum, C. granatum, C. pseudoinsigne, C. reniforme and Staurastrum pingue, are found in the samples together with E. lacustre.

Cyclotella deceusteriana, a new centric diatom species (Bacillariophyta) from the sub-Antarctic Region

Phytotaxa ◽  
2018 ◽  
Vol 333 (1) ◽  
pp. 108 ◽  
Author(s):  
BART VAN DE VIJVER ◽  
STEVEN DESSEIN
Keyword(s):  
New Species ◽  
Morphological Analysis ◽  
Central Area ◽  
Centric Diatom ◽  
New Taxon ◽  
Antarctic Region ◽  
Distribution And Ecology ◽  
Electron Microscopical ◽  
A New Species ◽  
Freshwater Diatom

During a survey of the freshwater diatom flora of the sub-Antarctic region (Iles Kerguelen and Iles Crozet) in the southern Indian Ocean, an unknown Cyclotella taxon was observed that was formerly identified as the presumed cosmopolitan C. meneghinana. Detailed morphological analysis based on light and scanning electron microscopical observations and comparison with several similar Cyclotella taxa worldwide justified the description of this unknown taxon as a new species: Cyclotella deceusteriana sp. nov. The new taxon is characterized by the presence of marginal fultoportulae on every costa, hyaline furrows between the raised marginal parts on which the striae are located, 2, occasionally 1, 3 or 4 central fultoportulae and an entirely flat, smooth, relatively small central area. The new species is described and compared with other Cyclotella taxa. Notes on its distribution and ecology are added.

scholarly journals New and interesting species of the genera Galumna and Pergalumna (Acari, Oribatida, Galumnidae) from the Montagne d'Ambre National Park, Madagascar

Acarologia ◽  
2020 ◽  
Vol 60 (1) ◽  
pp. 64-74
Author(s):  
Sergey G. Ermilov ◽  
Josef Starý
Keyword(s):  
New Species ◽  
Body Size ◽  
National Park ◽  
Similar Species ◽  
Two New Species ◽  
Ethiopian Region ◽  
First Time ◽  
Interesting Species ◽  
Median Pore

This work includes taxonomic and faunistic data on galumnid mites (Oribatida, Galumnidae) belonging to the genera Galumna and Pergalumna collected from the Montagne d'Ambre National Park, North Madagascar. Two new species are described: Galumna sandormahunkai n. sp. differs from its closest species, Galumna sphagni by the larger body size, the presence of strongly protruding rostrum, lanceolate, pointed apically bothridial setae, the direction of lamellar lines, and the absence of median pore; Pergalumna janosbaloghi n. sp. differs from the most similar species, Pergalumna aegra, by the smaller body size and the presence of long lamellar setae and elongate, distinctly or slightly triangular porose areas Aa. Galumna granalata and Pergalumna amamiensis are recorded in the Ethiopian region for the first time; Pergalumna conspicua and P. frater are recorded in Madagascar for the first time.

scholarly journals New species of the genus Otitoma Jousseaume, 1898 (Pseudomelatomidae, Conoidea) from the Western Pacific Ocean

2017 ◽  
Author(s):  
Mauro Morassi ◽  
Andrea Nappo ◽  
Antonio Bonfitto
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
New Caledonia ◽  
The Philippines ◽  
Western Pacific Ocean ◽  
Type Specimens ◽  
Fiji Islands ◽  
The Family ◽  
First Time ◽  
The Western Pacific

Twelve new species are assigned to the genus Otitoma Jousseaume, 1898 in the family Pseudomelatomidae Morrison, 1966 and herein described: O. hadra sp. nov., O. neocaledonica sp. nov., O. rubiginostoma sp. nov and O. tropispira sp. nov. from New Caledonia; O. boucheti sp. nov., O. nereidum sp. nov. and O. sororcula sp. nov. from the Fiji Islands; O. xantholineata sp. nov. from the Solomon to the Fiji Islands; O. crassivaricosa sp. nov. from Fiji to Hiva Oa Island (Marquesas Archipelago); O. philpoppei sp. nov. from the Philippines but also reported from the Fiji Islands; O. elegans sp. nov. from the Fiji Islands and O. philippinensis sp. nov. from the Philippines. New data on O. carnicolor (Hervier, 1896) are provided. Otitoma mitra (Kilburn, 1986), from Southern Mozambique, is here considered a synonym of O. cyclophora (Deshayes, 1863). Drillia batjanensis Schepman, 1913, previously assigned to the genus Maoritomella Powell, 1942 in the family Borsoniidae Bellardi, 1875, is here assigned to the genus Otitoma. Photographs of the holotype of Drillia batjanensis are provided for the first time. In addition, color photographs of the type specimens of the following species are provided: Drillia kwandangensis Schepman, 1913, D. timorensis Schepman, 1913 and Mitrellatoma mitra Kilburn, 1986.

Fragilaria irregularis sp. nov. a new araphid species (Fragilariaceae, Bacillariophyta) from the River Adegoy, Krasnodar Territory, Russia

Phytotaxa ◽  
2021 ◽  
Vol 508 (2) ◽  
Author(s):  
DMITRY CHUDAEV ◽  
INGRID JÜTTNER ◽  
BART VAN DE VIJVER
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Similar Species ◽  
New Taxon ◽  
Weakly Convex ◽  
Diatom Flora ◽  
A New Species ◽  
Scanning Electron

During a survey of the diatom flora of the Adegoy River (Krasnodar Territory, Russia), an unknown Fragilaria species (Bacillariophyta) was found that could not be identified using the currently available literature and here we describe it as a new species. The morphology of Fragilaria irregularis sp. nov. was studied using light and scanning electron microscopy and compared to similar species including Fragilaria deformis, F. rinoi, F. septentrionalis and Fragilariforma bicapitata. It differed from these taxa in several characters. Most observed valves showed an irregular striation pattern, a feature not observed in other species. Other important differences include valve outline (linear with parallel margins) and stria density (7–14 in 10 µm, lower compared to all other species). The new taxon has a linear valve outline with parallel to weakly convex margins, subcapitate apices and a very irregular, coarse striation pattern.

Four new species of the superfamily Galumnoidea (Acari: Oribatida) from Ecuador

Zootaxa ◽  
2012 ◽  
Vol 3481 (1) ◽  
pp. 27 ◽  
Author(s):  
SERGEY G. ERMILOV ◽  
STANISLAV KALÚZ
Keyword(s):  
New Species ◽  
Body Size ◽  
Distal Part ◽  
Oribatid Mite ◽  
Mite Species ◽  
Similar Species ◽  
Pore Length ◽  
Smooth Body ◽  
First Time ◽  
Oribatid Mite Species

Four new oribatid mite species of the superfamily Galumnoidea, Pergalumna paradecoratissima sp. nov., Pergalumnaparalongisetosa sp. nov., Pergalumna ecuadorensis sp. nov. and Galumnopsis lanceosensilla sp. nov., are described fromEcuador. The genus Galumnopsis is recorded for the first time for the Ecuador. Pergalumna paradecoratissima sp. nov.is very similar in having the combination of foveolate prodorsum, striate notogaster, setiform sensilli, interlamellar setaeshorter than lamellar and rostral setae, absence of anterior notogastral margin and three pairs of notogastral porose areas,to Pergalumna decoratissima Pérez-Íñigo & Baggio, 1986 from Brazil, however it differs from the latter by morphologyof rostrum, body size, surface of anal plates and length of epimeral setae. Pergalumna paralongisetosa sp. nov. is verysimilar in having the combination of setiform sensilli, long prodorsal setae, absence of anterior notogastral margin, threepairs of notogastral porose areas and long adanal setae ad 1 and ad 2 to Pergalumna longisetosa Balogh, 1960 from CentralAfrica, however it differs from the latter by body size, lengths of sensilli and interlamellar setae, absence of medial pore,length of epimeral setae. Pergalumna ecuadorensis sp. nov. can be distinguished from all similar species by having theround rostrum, setiform sensilli, long and setiform prodorsal setae, absence of anterior notogastral margin, smooth bodysurface and three pairs of oval notogastral porose areas, and by the very long interlamellar setae. Galumnopsis lanceosen-silla sp. nov. can be distinguished from all similar species (with smooth body surface) by the morphology of sensilli which are lanceolate, with tooth in distal part.

On Luticola Mann (Bacillariophyceae) in southeastern Brazil: taxonomy, ecology and description of two new species

Phytotaxa ◽  
2019 ◽  
Vol 402 (4) ◽  
pp. 165 ◽  
Author(s):  
ANGELA MARIA DA SILVA-LEHMKUHL ◽  
THELMA ALVIM VEIGA LUDWIG ◽  
PRISCILA IZABEL TREMARIN ◽  
DENISE DE CAMPOS BICUDO
Keyword(s):  
Electron Microscopy ◽  
New Species ◽  
Southeastern Brazil ◽  
Similar Species ◽  
Diatom Species ◽  
Sem Images ◽  
New Information ◽  
Two New Species ◽  
First Time ◽  
Scanning Electron

In the present study, we analyzed the taxonomy and ecology of fourteen species of Luticola registered in oligo- to hypereutrophic reservoirs of southeastern Brazil. Two new species were described using light and scanning electron microscopy. Luticola bartolomeii sp. nov. and Luticola iporangensis sp. nov. are distinguished from morphologically similar species by a combination of valve outline and dimensions. In addition, L. bartolomeii showed occluded isolated areolae that have a different shape and location, hitherto not observed in other Luticola species. We also compared the morphology of the new species with similar taxa and provided information on their ecological preferences. Luticola panamaensis is first recorded in Brazil, and another eight species are recorded for the first time for the state of São Paulo. This study expanded the distribution of species and added new information to the ecology of Luticola, as well as provided the first SEM images for some already known species. Information on the co-occurrence of other diatom species in the samples is also included.

First records of Epimeriidae and Iphimediidae (Crustacea, Amphipoda) from Macquarie Ridge, with description of a new species and its juveniles

Zootaxa ◽  
2012 ◽  
Vol 3200 (1) ◽  
pp. 49 ◽  
Author(s):  
ANNE-NINA LÖRZ
Keyword(s):  
New Species ◽  
New Zealand ◽  
Amphipod Species ◽  
Similar Species ◽  
Unique Combination ◽  
Heard Island ◽  
Mid Ocean Ridge ◽  
Ocean Ridge ◽  
First Time ◽  
A New Species

Amphipod species of the families Epimeriidae and Iphimediidae are recorded for the first time from Macquarie Ridge, asparsely sampled mid-ocean ridge between New Zealand and Antarctica. Epimeria ashleyi sp. nov. collected from twoseamounts on the Macquarie Ridge between 676–1025 m water depth is described in detail.Epimeria ashleyi sp. nov. can be distinguished from similar species by the unique combination of following charac-ters: pointed coxa 1–3, dorsal doublecarinae as well as three lateral projections on epimeral plates 1–3. The juveniles ofthe new species are described and are considerably different from the adults. Additionally, Labriphimedia pulchridentata(Stebbing, 1888), previously known only from Heard Island, is recorded from Macquarie Ridge seamounts with first images of its colour in life.

Review of the genus Eustomias (Stomiiformes: Stomiidae: Melanostomiinae) of Taiwan, with descriptions of three new species

Zootaxa ◽  
2019 ◽  
Vol 4702 (1) ◽  
pp. 94-106
Author(s):  
KEITA KOEDA ◽  
HSUAN-CHING HO
Keyword(s):  
New Species ◽  
New Record ◽  
Similar Species ◽  
Western Pacific Ocean ◽  
Meristic Characters ◽  
Fin Ray ◽  
Unidentified Species ◽  
Three New Species ◽  
First Time ◽  
The Western Pacific

The barbeled dragonfish genus Eustomias in Taiwan is reviewed. Five species in three subgenera are recognized, including three new species, a new record, and an unidentified species. Eustomias (Dinematochirus) dendrobium sp. nov. can be distinguished from its congener by its unique barbel structure. Eustomias (Haploclonus) stamen sp. nov. has a unique barbel structure and diagnostic meristic characters. Eustomias (Nominostomias) tritentaculatus sp. nov. has an extremely long barbel and distinct pigmentation, with fin ray counts that are different from most similar species. Eustomias (Nominostomias) perplexus Gibbs, Clarke & Gomon 1983, widespread in the western Pacific Ocean is reported for the first time from Taiwan. Three specimens of Eustomias were only identifiable to subgenus Haploclonus due to their poor condition. 

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