On the Taxonomic Status of the Red Icefish Channichthys rugosus (Notothenioidei: Channichthyidae) from the Kerguelen Islands (South Ocean)

2021 ◽  
Vol 325 (4) ◽  
pp. 485-494
Author(s):  
E.A. Nikolaeva
Keyword(s):  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Proximal Part ◽  
Axial Skeleton ◽  
Valid Species ◽  
Diagnostic Features ◽  
Seismosensory System ◽  
Kerguelen Islands ◽  
Dorsal Fin ◽  
South Ocean

The presented work is the final part of the taxonomic revision of the Antarctic icefishes of the genus Channichthys Richardson, 1844 (Notothenioidei: Channichthyidae) from the Kerguelen Islands, the species composition of which was discussed until recently. Based on the morphological study of all available specimens from the ZIN and BMNH collections (including the holotype), a comprehensive redescription of the Red icefish Channichthys rugosus Regan, 1913 from the waters of the Kerguelen islands (South Ocean) was carried out, including external morphology, seismosensory system, gill apparatus, and axial skeleton. As a result, new diagnostic features of Red icefish were discovered and previously known ones were clarified, which made it possible to confirm the species validity. Comparison with other valid species icefishes was done. Channichthys rugosus differs from Ch. rhinoceratus Richardson, 1844 by a high anterior dorsal fin, the fin membrane of which reaches the apexes of its longest rays (does not reach in Ch. rhinoceratus), as well as a narrow and concave interorbital space (compared to the wider and flat one), by stronger granulation and a uniform reddish body color (dark spotted-marble in Ch. rhinoceratus). Channichthys rugosus differs from Ch. velifer Meissner, 1972 by the number of rays in the first dorsal fin (7–9 versus 9–12) and pectoral fin (18–20 versus 20–21), the presence of bone plaques in the proximal part of the medial lateral line (absent in Ch. velifer), and monochromatic reddish body coloration (spotted in Ch. velifer). Channichthys rugosus differs from Ch. panticapaei Shandikov, 1995 by the presence of only 1 row of gill rakers on the first gill arch (2 rows in Ch. panticapaei) and by light coloration (brownish-black in Ch. panticapaei).

Taxonomic revision of Microdaiphron Pic, 1926 (Coleoptera: Cantharidae: Chauliognathinae)

2020 ◽  
Vol 51 (3) ◽  
pp. 408-443 ◽  
Author(s):  
Gabriel Biffi
Keyword(s):  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Valid Species ◽  
Diagnostic Features ◽  
Distribution Maps

The genus Microdaiphron Pic, 1926 is revised. Ten species are recognized as valid: Microdaiphron polemioides (Kirsch, 1889), M. implicitus (Erichson, 1847) comb. nov., M. pauloensis (Pic, 1926), M. peruvianus Pic, 1938, M. mendesensis (Pic, 1926), M. tapuruquara sp. nov., M. geodesicus sp. nov., M. batasitensis (Pic, 1926), M. guyanensis Constantin, 2016, and M. brevehumeralis Pic, 1938. Other 23 names within Microdaiphron are synonymized with the currently valid species, whilst Microdaiphron bicoloricornis Pic, 1947 is transferred to Malthesis Motschulsky, 1853. The taxonomic status of three primary homonyms is also discussed. Daiphron polemioides var. atripenne Pic, 1927 (=Microdaiphron implicitus comb. nov.) is the senior homonym of Daiphron atripenne Pic, 1934 and Daiphron atripenne var. bipartitum Pic, 1934. The later is synonymized and reinstated as a valid species under the name D. bipartitus Pic, 1934. Descriptions, distribution maps and illustrations of diagnostic features are presented for all valid taxa, including the photographs of primary types in all available names within Microdaiphron.

scholarly journals A revision of the genus Psammogorgia Verrill, 1868 (Cnidaria, Anthozoa, Octocorallia) in the tropical eastern Pacific Ocean

ZooKeys ◽  
2020 ◽  
Vol 961 ◽  
pp. 1-30
Author(s):  
Odalisca Breedy ◽  
Hector M. Guzman
Keyword(s):  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Eastern Pacific ◽  
New Combination ◽  
Valid Species ◽  
Shallow Waters ◽  
Eastern Pacific Ocean ◽  
Tropical Eastern Pacific ◽  
Character Tables ◽  
Two New Species

The species of the genus Psammogorgia Verrill, 1868 from the shallow waters of the tropical eastern Pacific were mainly described from 1846 to 1870. Very few contributions were published subsequently. Recently, the genus was revisited with the addition of two new species. However, a comprehensive generic study is still missing for the eastern Pacific. Psammogorgia is characterised by having axes cores without mineralisation, mainly coarse irregular spindles and thorny, leafy or tuberculate clubs coenenchymal sclerites and the anthocodial armature with distinct collaret and points arrangements. Herein a taxonomic revision of the genus is presented based on type material which was morphologically analysed and illustrated using optical and scanning electron microscopy. Comparative character tables are provided for comparison among species in the genus, along with a taxonomic key. Moreover, the taxonomic status of each species was analysed. The genus Psammogorgia comprises six valid species and two varieties, and three lectotypes and a new combination are proposed to establish the taxonomic status of these species.

Morphological and molecular diversity in the freshwater crab Potamon ruttneri-P. gedrosianum species complex (Decapoda, Brachyura) indicate the need for taxonomic revision

Crustaceana ◽  
2016 ◽  
Vol 89 (2) ◽  
pp. 129-139 ◽  
Author(s):  
Alireza Keikhosravi ◽  
Reza Naderloo ◽  
Christoph D. Schubart
Keyword(s):  
New Record ◽  
Molecular Diversity ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Molecular Data ◽  
Valid Species ◽  
Indus River ◽  
Mitochondrial 16S Rdna ◽  
Morphological And Molecular Data ◽  
Incomplete Sampling

Many species and subspecies of Potamon have been described from the easternmost distribution of the genus in the western tributaries of the Indus River. Most of them were synonymised subsequently under the two names of currently valid species known from the region: Potamon gedrosianum Alcock, 1909 and Potamon ruttneri Pretzmann, 1962. Genetic and morphological information, based on mitochondrial 16S rDNA and the first male gonopod (G1), were gathered in the course of the present study. The corresponding results suggest the occurrence of four groups and question the taxonomic status of both species. We also revise the distribution range of both species, in particular that of P. gedrosianum, with a new record from Iran. Overall, the study reveals the need for a major revision using further morphological and molecular data. Because of the complexity of this necessary revision and the incomplete sampling, we here refrain from proposing any taxonomic conclusions.

scholarly journals Does Primula intricata Gren. et Godr. Merit Species Rank? A Taxonomic Revision Based on nrDNA, cpDNA and AFLP Data

2011 ◽  
Vol 39 (1) ◽  
pp. 24
Author(s):  
Dana ŞUTEU ◽  
Mihai PUSCAS ◽  
Ioan BĂCILĂ ◽  
Ana COSTE ◽  
Liviu FILIPAS ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
Nuclear Ribosomal Dna ◽  
Valid Species ◽  
Aflp Data ◽  
Genetic Studies ◽  
Length Polymorphisms ◽  
Amplified Fragment Length Polymorphisms

Primula intricata Gren. et Godr. has an unclear taxonomic status: it was originally described as a distinct species but subsequently was considered a subspecies (Primula elatior subsp. intricata) or even a variety (P. elatior var. intricata ) of Primula elatior (L.) Hill. No prior genetic studies were performed on this group of Primulaceae, therefore we considered useful to investigate taxonomies boundaries within the P. elatior-intricata group. We explored genetic differences between Primula intricata and Primula elatior group by applying three different types of molecular markers: nuclear ribosomal DNA (ITS1), chloroplast DNA (spacer trnH-psbA and intron trnL) and Amplified Fragment Length Polymorphisms (AFLP). We found a solid differentiation between P. intricata and P. elatior group, differentiation that was confirmed by all the employed molecular markers. This finding enabled us to propose a valid species rank for Primula intricata, as a separate taxon from the P. elatior group.

Revision of Lumbrineris de Blainville, 1828 (Polychaeta: Lumbrineridae)

Zootaxa ◽  
2006 ◽  
Vol 1336 (1) ◽  
pp. 1 ◽  
Author(s):  
LUIS F. CARRERA-PARRA
Keyword(s):  
Taxonomic Status ◽  
Valid Species ◽  
Diagnostic Features

Lumbrineris is restricted and redefined, and species are redescribed based upon type materials. The generic diagnostic features are chaetae of three types: simple and compound multidentate hooded hooks, and limbate chaetae; the maxillary apparatus is labidognath with five pairs of maxillae, maxillae II are as long as maxillae I with wide connecting plate slightly developed along the base of maxillae II. Lumbrineris, as herein redefined includes L. albifrons, L. amboinensis, L. aniara, L. annulata, L. californiensis, L. cingulata, L. coccinea, L. crosnieri sp. nov., L. cruzensis, L. floridana, L. futilis, L. grandis, L. higuchiae sp. nov., L. imajimai sp. nov., L. index, L. indica sp. nov., L. inflata, L. inhacea, L. japonica, L. kerguelensis, L. knoxi sp. nov., L. latreilli, L. limicola, L. magalhaensis, L. mustaquimi sp. nov., L. nasuta, L. nishii sp. nov., L. nonatoi, L. oculata, L. oxychaeta, L. pallida, L. paucidentata, L. perkinsi, L. reunionensis sp. nov., L. setosa, L. vanhoeffeni. The taxonomic status of 21 other species originally described as Lumbrineris is discussed. A key to all valid species is included.

Taxonomic revision of the genus Poropuntius (Teleostei: Cyprinidae) in Peninsular Malaysia

Zootaxa ◽  
2018 ◽  
Vol 4472 (2) ◽  
pp. 327
Author(s):  
ABDULLAH HALIM MUHAMMAD-RASUL ◽  
ROSLI RAMLI ◽  
VAN LUN LOW ◽  
AMIRRUDIN AHMAD ◽  
CHAIWUT GRUDPAN ◽  
...  
Keyword(s):  
Morphological Differentiation ◽  
Principal Component ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Peninsular Malaysia ◽  
Freshwater Ecosystems ◽  
Valid Species ◽  
Nominal Species ◽  
Cytochrome Oxidase Subunit ◽  
Molecular Characters

Up to three nominal species of the cyprinid fish genus Poropuntius (i.e. P. deauratus [Valenciennes in Cuvier & Valenciennes 1842], P. normani [Smith 1931], and P. smedleyi [de Beaufort 1933]) have been reported to occur in Peninsular Malaysian freshwater ecosystems. However, low morphological differentiation among species of Poropuntius causes confusion and it is still unknown how many valid species of Poropuntius occur in this region. The goal of this study is to review the taxonomic status of Poropuntius in Peninsular Malaysia by using morphological and molecular characters. Principal Component Analysis (PCA) on a morphometric dataset including 281 specimens of Poropuntius from Peninsular Malaysia and P. normani from Thailand (type locality) failed to identify non-overlapping clusters within sampled specimens. A phylogenetic tree based on cytochrome oxidase subunit I (COI) showed intraspecific levels of genetic differentiation within Poropuntius of Peninsular Malaysia and the specimens of P. normani from Thailand form a monophyletic group. Our results strongly support the presence of only one species of Poropuntius in Peninsular Malaysia, P. normani. We demonstrate that P. smedleyi described from Johor, southern Peninsular Malaysia, is a junior synonym of P. normani. The previous reports of the presence of P. deauratus in Peninsular Malaysia are doubtful because this species was described from Vietnam where, in all evidence, it is endemic. 

Ten new species of lichenized Basidiomycota in the genera Dictyonema and Cora (Agaricales: Hygrophoraceae), with a key to all accepted genera and species in the Dictyonema clade

Phytotaxa ◽  
2013 ◽  
Vol 139 (1) ◽  
pp. 1 ◽  
Author(s):  
Robert Lücking ◽  
Manuela Dal-Forno ◽  
James D. Lawrey ◽  
Frank Bungartz ◽  
María E. Holgado Rojas ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Molecular Phylogenetic Analysis ◽  
New Combinations ◽  
Diagnostic Features ◽  
The Status ◽  
Molecular Phylogenetic ◽  
Tropical America

As part of a larger systematic and taxonomic revision, including molecular phylogenetic analysis, of lichenized Basidiomycota in the Dictyonema clade, ten species are described as new from tropical America, seven in the foliose genus Cora and three in the filamentous genus Dictyonema: Cora arachnoidea J. E. Hern. & Lücking, sp. nov., C. aspera Wilk, Lücking & E. Morales, sp. nov., C. byssoidea Lücking & Moncada, sp. nov., C. cyphellifera Dal-Forno, Bungartz & Lücking, sp. nov., C. inversa Lücking & Moncada, sp. nov., C. squamiformis Wilk, Lücking & Yánez-Ayabaca, sp. nov., C. strigosa Lücking, E. Paz & L. Salcedo, sp. nov., Dictyonema aeruginosulum Lücking, Nelsen & Will-Wolf, sp. nov., D. diducens Nyl. ex Lücking, sp. nov., D. metallicum Lücking, Dal-Forno & Lawrey, sp. nov., and D. obscuratum Lücking, Spielmann & Marcelli, sp. nov. We discuss the taxonomic status of the six names historically established for species belonging in the genus Cora and reinstate the names C. gyrolophia Fr., C. pavonia (Sw.) Fr., and C. reticulifera Vain., providing diagnostic features for these, whereas the status of C. glabrata (Spreng.) Fr. and C. bovei Speg. remains uncertain. The following new combinations are introduced: Cora hirsuta (Moncada & Lücking) Moncada & Lücking, comb. nov., C. minor (Lücking, E. Navarro & Sipman) Lücking, comb. nov., Corella melvinii (Chaves, Lücking & Umaña) Lücking, Dal-Forno & Lawrey, comb. nov., Cyphellostereum phyllogenum (Müll. Arg.) Lücking, Dal-Forno & Lawrey, comb. nov., Dictyonema caespitosum (Johow) Lücking, comb. nov., D. irrigatum (Berk. & M. A. Curtis) Lücking, comb. nov., D. phyllophilum (Parmasto) Lücking, Dal-Forno & Lawrey, comb. et stat. nov., and D. scabridum (Vain.) Lücking, comb. et stat. nov. Keys are presented to the five currently accepted genera and 40 currently recognized species in the genera Cyphellostereum, Dictyonema, Cora, and Corella.

scholarly journals Ecomorphological differences between Rhamdia (Bleeker, 1858) populations from the Iguaçu River basin

2013 ◽  
Vol 13 (4) ◽  
pp. 99-104 ◽  
Author(s):  
Fabio Teruo Mise ◽  
Luiz Fernando Caserta Tencatt ◽  
Fagner de Souza
Keyword(s):  
Morphological Characteristics ◽  
Principal Component ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Valid Species ◽  
Permutation Procedure ◽  
Morphological Aspects ◽  
Initial Hypothesis ◽  
Benthic Fishes ◽  
Iguaçu River

Morphological and genetic evidences suggest that Rhamdia branneri and Rhamdia voulezi, currently considered synonymous of Rhamdia quelen, are in fact two valid species. Furthermore, in the taxonomic revision of R. quelen, no exemplars from the Iguaçu River were examined, which makes the synonymy doubtful. Considering the two species as valid, it was hypothesized that R. branneri and R. voulezi have ecomorphological differences, with the objective to verify if they can be considered ecologically distinct. Ecomorphological characterization was conducted using ecomorphological indices. For statistical analysis, a Principal Component Analysis (PCA), a Multiresponse Permutation Procedure (MRPP), and a Discriminant Analysis (DA) were performed. The ordination provided by the PCA evidenced ecomorphological separation, with R. branneri having morphological aspects related to benthic fishes, and R. voulezi having morphological characteristics related to pelagic and lentic habitats. The DA results confirmed the morphological tendencies found in the PCA, and the MRPP showed significant statistical differences between the ecomorphology of Rhamdia species. In this way, the initial hypothesis can be corroborated. These results allied to information about diet, genetics, and reproduction can be helpful for the elucidation of the taxonomic status of R. branneri and R. voulezi.

scholarly journals Taxonomic revision of the genus Oodera Westwood, 1874 (Hymenoptera, Chalcidoidea, Pteromalidae, Cleonyminae), with description of ten new species

2018 ◽  
Vol 63 ◽  
pp. 73-123 ◽  
Author(s):  
Jennifer Werner ◽  
Ralph S. Peters
Keyword(s):  
Papua New Guinea ◽  
Central African Republic ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Valid Species ◽  
Key To Species ◽  
Type Specimens ◽  
The World ◽  
Nomina Dubia

The world species ofOoderaWestwood, 1874 (Chalcidoidea: Pteromalidae: Cleonyminae: Ooderini) are revised. We examined 115 specimens of this rarely collected genus and based on morphological characters assign 110 specimens to 20 recognised species, of which the following ten are described as new:Ooderacircularicollissp. n.(Morocco),O.felixsp. n.(Central African Republic),O.fidelissp. n.(Vietnam),O.floreasp. n.(Thailand),O.heikewerneraesp. n.(Botswana and South Africa),O.leibnizisp. n.(Papua New Guinea, Malaysia and Phillippines),O.mkomaziensissp. n.(Tanzania),O.namibiensissp. n.(Namibia),O.niehuisorumsp. n.(Egypt and Israel), andO.srilankiensissp. n.(Sri Lanka).OoderamonstrumNikol’skaya, 1952, syn. n., is synonymised underO.formosa(Giraud, 1863). Five specimens could not be assigned to species and are treated asOoderasp. Redescriptions are provided for all previously described valid species.OoderaalbopilosaCrosby, 1909 is excluded fromOoderaand transferred toEupelmusDalman, 1820 (Eupelmidae) asE.albopilosa(Crosby, 1909) n. comb.OoderarufimanaWestwood, 1874 andO.obscuraWestwood, 1874 are treated asnomina dubiabecause we were unable to locate type specimens and the original descriptions are not sufficiently informative to clarify the taxonomic status of these names. Several specimens from North America are identified as introduced specimens of the European speciesO.formosa. We provide images and diagnostic characters for all 20 included species and an identification key to species.

The forgotten origin of Acanthobothrium Blanchard, 1848 (Tetraphyllidea: Onchobothriidae)

Zootaxa ◽  
2012 ◽  
Vol 3505 (1) ◽  
pp. 86
Author(s):  
DENIS JACOB MACHADO ◽  
FERNANDO PORTELLA DE LUNA MARQUES
Keyword(s):  
Taxonomic Revision ◽  
Absolute Number ◽  
Wide Distribution ◽  
Valid Species ◽  
Nominal Species ◽  
Publication Type ◽  
Diagnostic Features ◽  
Taxonomic History ◽  
History Of ◽  
New Material

The genus Acanthobothrium assembles a set of cosmopolitan onchobothriid tapeworms parasites of elasmobranchs. Despite its clear diagnostic features, which include a scolex with four bothridia each bearing three loculi and a pair of bipronged hooks, this genus is represented by species that possess a diversity of morphologies and host lineages (e.g. rays, skates, guitarfishes, and sharks; Campbell & Beveridge 2002; Zschoche et al. 2011). The wide distribution of this genus, its diverse morphology, and, perhaps most importantly, its lengthy and complex taxonomic history likely account for the fact that, to date, the absolute number of valid species, of potentially more than 200 nominal species, cannot be assigned to the genus with certainty. Clearly, a taxonomic revision of this group is overdue; a task that certainly will only be accomplished by collaborative efforts of cestodologists around the globe, given the widespread distribution of its species and the necessity of collecting new material to verify host identities and morphology in many cases. It is not our purpose here to provide such a revision. However, in order to get the basis for such a task, it is our intention to clarify the authorship, date of publication, type species, and type host of Acanthobothrium. To the best of our understanding, these have been mistakenly assigned throughout the taxonomic history of the genus.

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