scholarly journals Taxonomic Revision and Classification of Extant Holococcolithophores Previously Placed in the Genus Anthosphaera Kamptner emend. Kleijne 1991

2021 ◽  
Vol 59 (3-4) ◽  
pp. 121-139
Author(s):  
Odysseas A. Archontikis ◽  
Jeremy R. Young ◽  
Lluïsa Cros

The genus Anthosphaera Kamptner emend. Kleijne is one of the most taxonomically confusing modern coccolithophores and its species level taxonomy has long been in a state of flux. Based on the review of imaged specimens from our collections, we attempt to rectify the nomenclatural problems and elucidate the obfuscated taxonomy of the genus. Review of included formally and informally described species shows that they are a distinctive group with shared characters, including ten different morphotypes of probable species level. Two of these, including the type species A. fragaria, have been shown to form life-cycle associations with heterococcoliths of the Syracosphaera molischii type. Hence, all species are transferred to Syracosphaera and the new combinations S. periperforata, S. lafourcadii, and S. origami are proposed. In addition, various informally described morphotypes are now formally described as Syracosphaera molischii var. pertusa, S. periperforata var. cylindrata, S. periperforata var. tridentata, S. rotaconica, and S. elevata. urn:lsid:zoobank.org:pub:0E5D4BD7-BC3B-4D30-B319-964AC887DDDE

2012 ◽  
Vol 25 (1) ◽  
pp. 81 ◽  
Author(s):  
C .F. Wilkins ◽  
B. A. Whitlock

A taxonomic revision and DNA sequence analysis of all species previously attributed to Rulingia R.Br. and Commersonia J.R.Forst. & G.Forst. resulted in two major groupings, referred to a redefined Commersonia and a new genus (Androcalva C.F.Wilkins & Whitlock 2011). In total, 25 species are now recognised within Commersonia, including the type species of Rulingia, and 14 species previously included in Rulingia and 10 in Commersonia. Three of these are described as new (C. apella C.F.Wilkins, C. erythrogyna C.F.Wilkins and C. gilva C.F.Wilkins). A new subspecies, C. magniflora subsp. oblongifolia C.F.Wilkins, is recognised and C. bartramia (L.) Merr. var. tahitensis Dorr is raised to species level as C. tahitensis (Dorr) C.F.Wilkins & Whitlock. Two new combinations are made, Rulingia platycalyx Benth. and R. parviflora Endl. as C. parviflora (Endl.) C.F.Wilkins & Whitlock; and R. cistifolia Steetz and R. rugosa Steetz as C. rugosa (Steetz) F.Muell. The redefined Commersonia is monophyletic and characterised by anthers with sublatrorse dehiscence and mainly hairy staminodes, compared with extrorse dehiscence and glabrous staminodes as seen in Androcalva.


2011 ◽  
Vol 24 (5) ◽  
pp. 226 ◽  
Author(s):  
C. F. Wilkins ◽  
B. A. Whitlock

A taxonomic revision and DNA sequence analysis of all species previously attributed to Rulingia R.Br. and Commersonia J.R.Forst. & G.Forst. resulted in two major groupings, referred to a redefined Commersonia and a new genus (Androcalva C.F.Wilkins & Whitlock 2011). In total, 25 species are now recognised within Commersonia, including the type species of Rulingia, and 14 species previously included in Rulingia and 10 in Commersonia. Three of these are described as new (C. apella C.F.Wilkins, C. erythrogyna C.F.Wilkins and C. gilva C.F.Wilkins). A new subspecies, C. magniflora subsp. oblongifolia C.F.Wilkins, is recognised and C. bartramia (L.) Merr. var. tahitensis Dorr is raised to species level as C. tahitensis (Dorr) C.F.Wilkins & Whitlock. Two new combinations are made, Rulingia platycalyx Benth. and R. parviflora Endl. as C. parviflora (Endl.) C.F.Wilkins & Whitlock; and R. cistifolia Steetz and R. rugosa Steetz as C. rugosa (Steetz) F.Muell. The redefined Commersonia is monophyletic and characterised by anthers with sublatrorse dehiscence and mainly hairy staminodes, compared with extrorse dehiscence and glabrous staminodes as seen in Androcalva.


2020 ◽  
Vol 5 (1) ◽  
pp. 17-38 ◽  
Author(s):  
K. Seto ◽  
S. Van Den Wyngaert ◽  
Y. Degawa ◽  
M. Kagami

During the last decade, the classification system of chytrids has dramatically changed based on zoospore ultrastructure and molecular phylogeny. In contrast to well-studied saprotrophic chytrids, most parasitic chytrids have thus far been only morphologically described by light microscopy, hence they hold great potential for filling some of the existing gaps in the current classification of chytrids. The genus Zygorhizidium is characterized by an operculate zoosporangium and a resting spore formed as a result of sexual reproduction in which a male thallus and female thallus fuse via a conjugation tube. All described species of Zygorhizidium are parasites of algae and their taxonomic positions remain to be resolved. Here, we examined morphology, zoospore ultrastructure, host specificity, and molecular phylogeny of seven cultures of Zygorhizidium spp. Based on thallus morphology and host specificity, one culture was identified as Z. willei parasitic on zygnematophycean green algae, whereas the others were identified as parasites of diatoms, Z. asterionellae on Asterionella, Z. melosirae on Aulacoseira, and Z. planktonicum on Ulnaria (formerly Synedra). According to phylogenetic analysis, Zygorhizidium was separated into two distinct order-level novel lineages; one lineage was composed singly of Z. willei, which is the type species of the genus, and the other included the three species of diatom parasites. Zoospore ultrastructural observation revealed that the two lineages can be distinguished from each other and both possess unique characters among the known orders within the Chytridiomycetes. Based on these results, we accommodate the three diatom parasites, Z. asterionellae, Z. melosirae, and Z. planktonicum in the distinct genus Zygophlyctis, and propose two new orders: Zygorhizidiales and Zygophlyctidales.


2015 ◽  
Vol 89 (1) ◽  
pp. 72-81 ◽  
Author(s):  
William I. Ausich ◽  
Mark A. Wilson ◽  
Olev Vinn

AbstractStudy of new collections of the Wenlock and Pridoli, Silurian, crinoids from Saaremaa, western Estonia, result in taxonomic revision, expanded ranges, and new taxa. Eucalyptocrinites regularis and Periechocrinus laevis are recognized outside of Sweden for the first time. Desmidocrinus laevigatus Ausich et al., 2012 is reassigned to Methabocrinus. Because the type species of Methabocrinus was previously known only from glacial sediments, the age and provenance of this genus are constrained for the first time. A new crotalocrinitid, Velocrinus coniculus new genus and species, is described. Although the Pridoli faunas of western Estonia contain only twelve species-level taxa assigned to nine genera, this fauna is one of the four richest Pridoli faunas known.


Zootaxa ◽  
2009 ◽  
Vol 2254 (1) ◽  
pp. 1-96 ◽  
Author(s):  
STEPHAN M. BLANK ◽  
ANDREAS TAEGER ◽  
ANDREW D. LISTON ◽  
DAVID R. SMITH ◽  
ALEXANDR P. RASNITSYN ◽  
...  

Taxonomic and nomenclatorial changes affecting Symphyta, resulting from work on a forthcoming world catalog, are proposed and explained. Dolerus zhelochovtsevi Heidemaa & Viitasaari, sp. nov. is described. One former subgenus and two former subspecies are now treated at genus or species level, respectively. Eighteen replacement names are given, 73 new synonymies and 78 new combinations are proposed, 3 synonymies are re-established, and 5 names are resurrected from synonymy. The precedence of 18 species names (nomina protecta) over their older synonyms (20 nomina oblita) is explained. Type species are designated for 8 genus-group names. One neotype and 17 lectotypes are designated. Five names described as varieties are assigned infrasubspecific rank. Twenty-five genus-group names associated with Arge, Corynis, Dolerus, Trichiosoma and Xyela are unavailable. Two genus-group names and 33 species-group names are considered as unplaced taxa. An identification key is presented for the West Palaearctic species of Profenusa MacGillivray, 1914. Notes on publication dates and authorships of names of certain taxa are also included.


2019 ◽  
Vol 28 (1) ◽  
pp. 94-107
Author(s):  
S.Yu. Storozhenko

The pygmy grasshopper subfamily Batrachideinae consists of three tribes: Batrachideini Bolívar, 1887; Cassitettigini Yin, 1984, nom. resurr.; Bufonidini Hancock, 1907, nom. resurr., stat. nov. The Australian pygmy grasshoppers of the tribe Bufonidini are reviewed. Three new genera are described, namely Paraselina gen. nov. (type species Vingselina multifora Rehn, 1952), Anaselina gen. nov. (type species Vingselina minor Sjöstedt, 1921), and Selivinga gen. nov. (type species Selivinga tribulata sp. nov.). Four new combinations are proposed: Paraselina multifora (Rehn, 1952), comb. nov.; P. trituberculata (Sjöstedt, 1932), comb. nov.; P. brunneri (Bolívar, 1887), comb. nov.; Anaselina minor (Sjöstedt, 1921), comb. nov. A key to Australian genera of Batrachideinae is provided.


Zootaxa ◽  
2021 ◽  
Vol 4970 (1) ◽  
pp. 106-118
Author(s):  
SERGEY YU. STOROZHENKO

Incolacridinae is considered as a separate subfamily, not as a tribe of subfamily Catantopinae. It consists of four genera: Incolacris C. Willemse, 1932, stat. resurr., Stolzia C. Willemse, 1930, Bettotania C. Willemse, 1933, and Asymmetritania gen. nov. (type species: Stolzia vietnamensis Storozhenko, 2020). New combinations are proposed: Incolacris jianfengensis (Zheng et Ma, 1989), comb. nov., Asymmetritania asymmetrica (Ingrisch, 1989), comb. nov., and A. vietnamensis (Storozhenko, 2020), comb. nov. The diagnosis of subfamily and genera, a key to genera and an annotated list of the species of Incolacridinae are also given. 


Zootaxa ◽  
2005 ◽  
Vol 814 (1) ◽  
pp. 1 ◽  
Author(s):  
MICHAEL D. SCHWARTZ ◽  
FRÉDÉRIC CHÉROT

Eurotas Distant, 1884 is transferred from Mirinae, Mirini to Orthotylinae, Orthotylini (new subfamily placement) and Femurocoris Carvalho, 1977 is transferred from Mirinae, Mirini to Deraeocorinae, Hyaliodini (new subfamily placement). The following new combinations are suggested: Apolygus biannulatus (Poppius, 1915) comb. n. [Lygus], Apolygus bruneinensis (Carvalho, 1980) comb. n. [Lygus], Apolygus longirostris (Poppius, 1914) comb. n. [Lygus], Apolygus umbratus (Poppius, 1914) comb. n. [Lygus], Guisardinus lineatus (Carvalho in Carvalho & Gross, 1979) comb. n. [Chrysorrhanis], Gutrida mocquerysi (Poppius, 1912) comb. n. [Lygus], Lampethusa attenuata (Distant, 1883). comb. n. [Taedia], Lygidolon vittatum (Reuter, 1903) comb. n. [Lygus], Lygocoris viridiflavus (Poppius, 1914) comb. n. [Lygus], Lygocoris vittulatus (Poppius, 1914) comb. n. [Lygus], Neolygus indicus (Poppius, 1914) comb. nov. [Lygus], Neolygus sondaicus (Poppius, 1914) [Lygus], Pleurochilophorus sexlineatus (Delattre, 1949) n. comb. [Corizidolon], Sabactiopus laevipennis (Poppius, 1914) comb. n. [Lygus], Sabactiopus sublaevis (Poppius, 1914) comb. n. [Lygus], Sabactus exiguus (Poppius, 1914) comb. n. [Lygus], Schoutedenomiris schmitzi (Chérot, 1996) comb. n. [Trigonotylus], and Taylorilygus oceanicus (Poppius, 1914) comb. n. [Lygus]. Lectotypes are designated for Corizidolon sexlineatum Delattre, 1949, Lygus exiguus Poppius, 1914, Lygus indicus Poppius, 1914, Lygus laevipennis Poppius, 1914, Lygus nebulosus Poppius, 1914, Lygus oceanicus Poppius, 1914, Lygus sondaicus Poppius, 1914, Lygus vittatus Reuter, 1903, and Miris cruentatus Brullé, 1832. Two replacement names – Tropidosteptes costai Schwartz & Chérot (nomen novum) and Phytocoris garyi Schwartz & Chérot (nomen novum) – are given respectively to Tropidosteptes scutellatus Carvalho & Costa, 1993 nec Tropidosteptes scutellatus Distant, 1893 and Phytocoris falcatus Stonedahl, 1995 nec Phytocoris falcatus Linnavuori, 1984. The following taxa are raised to species level: Neostenotus confluentus Carvalho & Fontes, 1972 stat. n., Neostenotus itatiaianus Carvalho & Fontes, 1972 stat. n., Neostenotus serranus Carvalho & Fontes, 1972 stat. n., Neostenotus similimus Carvalho & Fontes, 1972 stat. n., Neostenotus sulinus Carvalho & Fontes, 1972 stat. n., Poeas alvarengai Carvalho, 1975 stat. n., Poeas atlantica Carvalho, 1975 stat. n, Poeas caatinga Carvalho, 1975 stat. n., Poeas chapada Carvalho, 1975 stat. n., and Poeas2© 2005 Magnolia Presscipoa Carvalho, 1975 stat. n. The subgeneric classification of Hyalopeplus cuneatus Carvalho in Carvalho & Gross, 1979 is discussed.


Zootaxa ◽  
2018 ◽  
Vol 4457 (1) ◽  
pp. 1 ◽  
Author(s):  
DANIEL BURCKHARDT ◽  
ANAMIKA SHARMA ◽  
ANANTANARAYANAN RAMAN

A checklist comprising information on taxonomy, distribution and host plants is provided for 161 species of jumping plant-lice from the Indian subcontinent (Bangladesh, Bhutan, India, Pakistan, Sri Lanka) based on published records and museum material. In addition there are 15 species recorded in the literature which are identified to genus only. Museum material provides eight new country and two new state (within India) records. The taxonomy is updated and following nomenclatorial acts are proposed: new genus (1), new generic synonymies (2), designation of type species (1), new species synonymies (5), replacement names for primary homonyms at species level (3), new status of subspecies (3), new combinations (23). Toonapsylla Burckhardt, gen. nov. is described for Psylla cedrelae (Kieffer, 1905). The new genus belongs to Mastigimatinae (Calophyidae) and is probably closest related to Bharatiana and Mastigimas, both associated with Cedrela and Toona (Meliaceae). The new genus is diagnosed and a key is provided for the world genera of Mastigimatinae. The Neoptropical genus Allophorina Hodkinson is transferred here from Mastigimatinae (Calophyidae) to Psyllinae (Psyllidae).


2012 ◽  
Vol 25 (1) ◽  
pp. 13-38 ◽  
Author(s):  
Dariusz L. Szlachetko ◽  
Magdalena Sitko ◽  
Piotr Tukałło ◽  
Joanna Mytnik-Ejsmont

Abstract A new classification of the subtribe Maxillariinae (Orchidaceae) is proposed. Thirty-seven genera are revised. The Camaridium group is divided into seven genera, Adamanthus, Camaridium, Pseudomaxillaria, Psittacoglossum and three described here: Chaseopsis, Chelyella and Viracocha. Ornithidium s.l. is divided into seven genera: Heterotaxis, Laricorchis,Neo-urbania, Nitidobulbon, Ornithidium, Vazquezella and Aucellia, the latter two described here. 193 new combinations on the species level are validated and the relationships among the genera are briefly discussed. A key to the determination of all genera representing Maxillariinae s. s. is provided.


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