Revision of the Magellanic Mactridae Lamarck, 1809 (Bivalvia: Heterodonta)

The worldwide family Mactridae Lamarck, 1809, is well represented in the southwestern Atlantic Ocean. Literature research revealed 22 living nominal species linked to Magellanic forms. Within this context, a taxonomic revision of the species belonging to the family Mactridae that inhabit the Magellanic area was carried out. The analysis was done by using morphological characters of the shell and describing the mantle cavity organs. After extensive fieldwork from Peninsula Valdés to Tierra del Fuego province, seven valid living species were confirmed. Synonymies of those valid forms have been updated, as have their geographic distributions. Redescriptions of the species here considered as valid, i.e.: Mactra fuegiensis Smith, 1905, Mulinia bicolor Gray, 1837, Mulinia byronensis Gray, 1837, Mulinia edulis (King & Broderip, 1832), Mulinia exalbida Gray, 1837, Mulinia levicardo (Smith 1881) and Darina solenoides (King & Broderip, 1832) are provided.

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Taxonomic revision of Brazilian Mactridae Lamarck, 1809 (Bivalvia: Cardiida)

Zootaxa ◽

10.11646/zootaxa.3245.1.2 ◽

2012 ◽

Vol 3245 (1) ◽

pp. 30 ◽

Cited By ~ 7

Author(s):

JAVIER H. SIGNORELLI ◽

GUIDO PASTORINO

Keyword(s):

South America ◽

Atlantic Ocean ◽

Taxonomic Revision ◽

Mantle Cavity ◽

Type Material ◽

New Combination ◽

Brazilian Coast ◽

Nominal Species ◽

Western Atlantic ◽

Literature Research

The worldwide distributed family Mactridae Lamarck, 1809, is well represented in the western Atlantic Ocean. An ex-haustive literature research revealed 54 nominal species from the Brazilian coast. The study was done using morphologicalcharacters of shell and in some cases mantle cavity organs. All type material was examined and illustrated. Eleven validliving species are confirmed from the Brazilian littoral and their synonymies and geographic distributions are updated.Redescriptions are provided for Mactrellona alata (Spengler, 1802); Mactrotoma fragilis (Gmelin, 1791); Mulinia clery-ana (d´Orbigny, 1846) and Anatina anatina (Spengler, 1802). The revision of Trinitasia iheringi (Dall, 1897) new combination, reveals the presence of a Tertiary genus among the Recent fauna of South America.

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Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean

Zootaxa ◽

10.11646/zootaxa.4527.1.6 ◽

2018 ◽

Vol 4527 (1) ◽

pp. 75

Author(s):

LUCIANA MARTINS

Keyword(s):

Pacific Ocean ◽

Atlantic Ocean ◽

First Record ◽

Morphological Characters ◽

Sem Analysis ◽

Southwestern Atlantic ◽

Internal Morphology ◽

The Pacific ◽

Southwestern Atlantic Ocean ◽

The Pacific Ocean

The genus Thyonella currently comprises four species which occur in the Atlantic and Pacific Oceans. Thyonella mexicana is the only species known to occur in the Pacific Ocean. The main morphological characters used to distinguish Thyonella species are their dermal ossicles. Since the differences among these characters are subtle, this contribution provides a detailed description and comparison of the ossicle assemblage of the concerned taxa. In addition, description of the internal morphology of three of the concerned species is also provided. Further, this study reports on the first record of Thyonella sabanillaensis for the Southwestern Atlantic. A worldwide revision of the distributional records of Thyonella species is presented and their taxonomy is discussed, concluding that some traditional taxonomic characters should be used cautiously. A brief discussion about the importance of SEM analysis is also provided.

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A taxonomic revision of the family Harrimaniidae (Hemichordata: Enteropneusta) with descriptions of seven species from the Eastern Pacific

Zootaxa ◽

10.11646/zootaxa.2408.1.1 ◽

2010 ◽

Vol 2408 (1) ◽

pp. 1 ◽

Cited By ~ 12

Author(s):

C. DELAND ◽

C. B. CAMERON ◽

K. P. RAO ◽

W. E. RITTER ◽

T. H. BULLOCK

Keyword(s):

New Species ◽

Taxonomic Revision ◽

Morphological Characters ◽

Eastern Pacific ◽

Nomen Nudum ◽

Phylogenetic Hypothesis ◽

Number Of Species ◽

Dichotomous Key ◽

The Family ◽

The Status

The family Harrimaniidae (Hemichordata: Enteropneusta) is revised on the basis of morphological characters. The number of harrimaniid genera is increased to nine by the addition of Horstia n. gen., Mesoglossus n. gen., Ritteria n. gen. and Saxipendium, a genus previously assigned to the monospecific family Saxipendiidae. The number of species is increased to 34, resulting from the description of five new species from the eastern Pacific — Horstia kincaidi, Mesoglossus intermedius, M. macginitiei, Protoglossus mackiei and Ritteria ambigua. A description is supplied for a sixth harrimaniid species, Stereobalanus willeyi Ritter & Davis, 1904, which previously had the status of a nomen nudum. Four harrimaniids previously assigned to the genus Saccoglossus are transfered to the genus Mesoglossus — M. bournei, M. caraibicus, M. gurneyi and M. pygmaeus, while Saccoglossus borealis is reassigned to the genus Harrimania. Notes on habitat and zoogeography are included for the seven foregoing species and a table of diagnostic characters for existing and new species and a dichotomous key to the enteropneust families and harrimaniid genera are provided. Finally, a phylogenetic hypothesis concerning the Harrimaniidae is postulated, with discussion on the evolution of the group.

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A new riparian Mantidactylus (Brygoomantis) frog from the Tsaratanana and Manongarivo Massifs in northern Madagascar

Zootaxa ◽

10.11646/zootaxa.4486.4.10 ◽

2018 ◽

Vol 4486 (4) ◽

pp. 575 ◽

Cited By ~ 4

Author(s):

MIGUEL VENCES ◽

ANDREA HILDENBRAND ◽

KATHARINA M. WARMUTH ◽

FRANCO ANDREONE ◽

FRANK GLAW

Keyword(s):

New Species ◽

Nuclear Dna ◽

Taxonomic Revision ◽

Morphological Characters ◽

Molecular Data ◽

Test Case ◽

Nominal Species ◽

Type Specimens ◽

The Status ◽

Morphological Differences

The subgenus Brygoomantis in the Madagascar-endemic genus Mantidactylus contains 12 nominal species but is in urgent need of taxonomic revision as many additional, genetically divergent but undescribed candidate species have been identified. We here take a first step towards a better resolution of this group by describing a new species, Mantidactylus schulzi sp. nov., occurring at the Tsaratanana and Manongarivo Massifs, differentiated in genetic, bioacoustic and sometimes morphological characters from its closest relatives. We show that upon detailed study, most species in Brygoomantis can be delimited by concordant differentiation of mitochondrial and nuclear DNA, and by bioacoustic and morphological differences. We flag this group of morphologically similar frogs as a test case where molecular data on historical type specimens by ancient DNA methods might be needed to reach a satisfying clarification of taxonomy and nomenclature. However, the status of the new species M. schulzi is not in doubt as it is morphologically distinct from most historical type specimens, and microendemic to a region in northern Madagascar from where no earlier names exist.

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Corrigendum to: Systematics and distribution of world hyptiogastrine wasps (Hymenoptera : Gasteruptiidae)

Invertebrate Systematics ◽

10.1071/it01048_co ◽

2002 ◽

Vol 16 (6) ◽

pp. 957 ◽

Cited By ~ 1

Author(s):

J. T. Jennings ◽

A. D. Austin

Keyword(s):

New Species ◽

New Zealand ◽

South America ◽

New Caledonia ◽

Cladistic Analysis ◽

Taxonomic Revision ◽

Morphological Characters ◽

The Family ◽

New Hebrides ◽

New Britain

This study examines the phylogeny, taxonomy, distribution and biology of the gasteruptiid subfamily Hyptiogastrinae and, at the same time, presents an overview of the family. Following a cladistic analysis of 35 discrete morphological characters, two monophyletic genera are recognised, Hyptiogaster Kieffer and Pseudofoenus s. l. Kieffer. As a consequence, the genera Aulacofoenus Kieffer, Crassifoenus Crosskey, and Eufoenus Szépligeti are synonymised with Pseudofoenus. A total of 88 species are recognised for the subfamily, 10 species of Hyptiogaster, which are restricted to mainland Australia, and 78 species of Pseudofoenus, 40 of which are described as new. Pseudofoenus has a restricted Gondwanan distribution and is found in Australia including Tasmania (65 spp.), New Guinea and New Britain (5 spp.), the south-west Pacific (New Caledonia, New Hebrides and Fiji – 2 spp.), New Zealand (4 spp.) and South America (2 spp.). No new species have been recorded from either New Zealand or South America. For Pseudofoenus, information on the distribution of each species, their biology (if known) and an identification key are presented.Following a taxonomic revision, the following new species are described: P. baileyi, sp. nov., P. baitetaensis, sp. nov., P. beverlyae, sp. nov., P. caperatus, sp. nov., P. cardaleae, sp. nov., P. carrabinensis, sp. nov., P. claireae, sp. nov., P. collessi, sp. nov., P. coorowensis, sp. nov., P. crosskeyi, sp. nov., P. douglasorum, sp. nov., P. eliseae, sp. nov., P. ericae, sp. nov., P. eustonensis, sp. nov., P. feckneri, sp. nov., P. gressitti, sp. nov., P. gullanae, sp. nov., P. hackeri, sp. nov., P. imbricatus, sp. nov., P. iqbali, sp. nov., P. kadowi, sp. nov., P. karimuiensis, sp. nov., P. kelleri, sp. nov., P. leinsterensis, sp. nov., P. macdonaldi, sp. nov., P. malkini, sp. nov., P. marshalli, sp. nov., P. masneri, sp. nov., P. mitchellae, sp. nov., P. morganensis, sp. nov., P. nalbarraensis, sp. nov., P. pumilis, sp. nov., P. schmidti, sp. nov., P. stevensi, sp. nov., P. tasmaniensis, sp. nov., P. taylori, sp. nov., P. umboiensis, sp. nov., P. walkeri, sp. nov. and P. zborowskii, sp. nov. The synonymy of Aulacofoenus, Crassifoenus and Eufoenus with Pseudofoenus result in the following new combinations: from Aulacofoenus: P. bungeyi (Jennings & Austin), comb. nov., P. deletangi (Schletterer), comb. nov., P. fallax (Schletterer), comb. nov., P. fletcheri (Jennings & Austin), comb. nov., P. goonooensis (Jennings & Austin), comb. nov., P. infumatus (Schletterer), comb. nov., P. kurmondi (Jennings & Austin), comb. nov., P. loxleyi (Jennings & Austin), comb. nov., P. marionae (Jennings & Austin), comb. nov., P. perenjorii (Jennings & Austin), comb. nov., P. swani (Jennings & Austin), comb. nov., P. thoracicus (Guérin Menéville), comb. nov., P. whiani (Jennings & Austin), comb. nov. and P. wubinensis (Jennings & Austin), comb. nov.; from Crassifoenus: P. houstoni (Jennings & Austin), comb. nov., P. grossitarsis (Kieffer), comb. nov and P. macronyx (Schletterer), comb. nov.; and from Eufoenus: P. antennalis (Schletterer), comb. nov., P. australis (Westwood), comb. nov., P. crassitarsis (Kieffer), comb. nov., P. darwini (Westwood), comb. nov., P. extraneus (Turner), comb. nov., P. ferrugineus (Crosskey), comb. nov., P. floricolus (Turner), comb. nov., P. inaequalis (Turner), comb. nov., P. melanopleurus (Crosskey), comb. nov., P. minimus (Turner), comb. nov., P. nitidiusculus (Turner), comb. nov., P. patellatus (Westwood), comb. nov., P. pilosus (Kieffer), comb. nov., P. reticulatus (Crosskey), comb. nov., P. rieki (Crosskey), comb. nov., P. ritae (Cheesman), comb. nov. and P. spinitarsis (Westwood), comb. nov. Pseudofoenus microcephalus (Crosskey), comb. nov. is transferred from Hyptiogaster and Eufoenus flavinervis (Kieffer) remains incertae sedis.

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COI barcoding of plant bugs (Insecta: Hemiptera: Miridae)

PeerJ ◽

10.7717/peerj.6070 ◽

2018 ◽

Vol 6 ◽

pp. e6070 ◽

Cited By ~ 2

Author(s):

Junggon Kim ◽

Sunghoon Jung

Keyword(s):

Genetic Distance ◽

Taxonomic Revision ◽

Morphological Characters ◽

Research Fields ◽

Average Maximum ◽

The Family ◽

Coi Barcoding ◽

Interspecific Genetic Distance ◽

Intraspecific Genetic Distance ◽

Identification Tool

The family Miridae is the most diverse and one of the most economically important groups in Heteroptera. However, identification of mirid species on the basis of morphology is difficult and time-consuming. In the present study, we evaluated the effectiveness of COI barcoding for 123 species of plant bugs in seven subfamilies. With the exception of threeApolygusspecies—A. lucorum,A. spinolae, andA. watajii(subfamily Mirinae)—each of the investigated species possessed a unique COI sequence. The average minimum interspecific genetic distance of congeners was approximately 37 times higher than the average maximum intraspecific genetic distance, indicating a significant barcoding gap. Despite having distinct morphological characters,A. lucorum,A. spinolae, andA. watajiimixed and clustered together, suggesting taxonomic revision. Our findings indicate that COI barcoding represents a valuable identification tool for Miridae and can be economically viable in a variety of scientific research fields.

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A taxonomic evaluation of the Thesium confine species complex (Santalaceae)

Bothalia ◽

10.4102/abc.v48i1.2346 ◽

2018 ◽

Vol 48 (1) ◽

Cited By ~ 1

Author(s):

Kagiso S. Mashego ◽

M. Marianne Le Roux

Keyword(s):

Species Complex ◽

Growth Form ◽

Taxonomic Revision ◽

Morphological Characters ◽

Research Strategy ◽

Herbarium Specimens ◽

African Species ◽

Separate Species ◽

Distribution Ranges ◽

The Family

Background: Thesium L. is the largest genus in the family Santalaceae (sandalwood family). The last taxonomic revision of the southern African species dates back to 1925. An urgent revision of the genus is required as indicated in a recent national biosystematics research strategy for South Africa.Objectives: To revise the Thesium confine species complex (Thesium durum, T. confine and Thesium spartioides) and to update the typification, nomenclature, descriptions and distribution ranges.Method: Morphological characters were studied using own field collections as well as herbarium specimens from K, NU, PRE and PRU and images on Global Plants (JSTOR). Distribution ranges of the studied species were updated.Results: An examination of morphological characters revealed great similarity between T. spartioides and T. confine. Both species have an herbaceous habit, decumbent growth form, terminal (or less frequently axillary) inflorescences and a sympatric northern distribution in South Africa. Thesium durum differs from T. spartioides and T. confine in having a shrubby habit, erect growth form and axillary inflorescences and occurs in the southern part of South Africa.Conclusion: Thesium spartioides is synonymised under T. confine, and T. durum is retained as a separate species.

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A taxonomic revision of the genus Phyxioschema (Araneae, Dipluridae), II: species from Central Asia

Zootaxa ◽

10.11646/zootaxa.2815.1.2 ◽

2011 ◽

Vol 2815 (1) ◽

Author(s):

PETER J. SCHWENDINGER ◽

SERGEI L. ZONSTEIN

Keyword(s):

New Records ◽

Taxonomic Revision ◽

Morphological Characters ◽

Nominal Species ◽

Type Specimens ◽

Male And Female ◽

Central Asian ◽

Female Holotype ◽

First Time ◽

A New Species

Phyxioschema raddei Simon, 1889 is revised. A re-examination of type specimens confirms the synonymy of P. raddei and Ischnothele strandi Spassky, 1937, but the synonymy of Afghanothele lindbergi Roewer, 1960 and A. striatipes Roewer, 1960 cannot be confirmed due to the immature state of their types. The copulatory organs of the female holotype and other females from different localities are illustrated for the first time. Variation in morphological characters is shown. New records are given for Iran, Turkmenistan, Uzbekistan, Kazakhstan and Tajikistan. Phyxioschema females from Pakistan cannot be attributed to any nominal species and are left unnamed. A new species, P. roxana, is described from male and female specimens collected at eight localities in southern Uzbekistan and western Tajikistan. Relationships between Central Asian and Southeast Asian species are discussed. A summary of relevant morphological characters of all Phyxioschema species is given.

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Remarks on the morphology and distribution of some rare centric diatoms in southern Brazilian continental shelf and slope waters

Brazilian Journal of Oceanography ◽

10.1590/s1679-87592012000400002 ◽

2012 ◽

Vol 60 (4) ◽

pp. 415-427 ◽

Cited By ~ 3

Author(s):

Marinês Garcia ◽

Clarisse Odebrecht

Keyword(s):

Atlantic Ocean ◽

Continental Shelf ◽

Southwestern Atlantic ◽

Patos Lagoon ◽

La Plata ◽

Centric Diatoms ◽

Southwestern Atlantic Ocean ◽

The Family ◽

Scanning Electron Microcopy ◽

First Time

This paper provides information on the morphology and occurrence of extant diatoms of the family Asterolampraceae and Azpeitia species of the southernmost Brazilian continental shelf and slope waters in the Southwestern Atlantic Ocean (28 -34ºS), under the influence of Tropical, Subtropical, Subantarctic Waters, terrestrial discharges from La Plata River and Lagoa dos Patos lagoon. Plankton was sampled (20 µm net; vertical hauls) at the same 27 stations in winter 2005 and summer 2007. Among Asterolampraceae, Asteromphalus flabellatus was the most frequent species (57% of samples) observed mainly in winter samples (92%) in Subtropical Shelf Water but also under the influence of La Plata River plume (salinity <35). Lower frequencies were observed for Asterolampra marylandica, Asteromphalus elegans, Asteromphalus heptactis and Spatangidium arachne. Four species of Azpeitia were observed: A. barronii and A. neocrenulata for the first time in the South Atlantic Ocean while A. africana and A. nodulifer had already been registered in equatorial and southern areas of Brazil. All Azpeitia species were rare (19%) in offshore samples (100-200 m depth. Remarks on the morphology based on light and scanning electron microcopy observations are provided along with their distribution in the study area.

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Phylogeny and taxonomic revision of the spider mite genera Aponychus, Paraponychus and Stylophoronychus using morphology (Acari : Tetranychidae)

Invertebrate Systematics ◽

10.1071/is12071 ◽

2013 ◽

Vol 27 (3) ◽

pp. 265 ◽

Cited By ~ 1

Author(s):

Fabio A. Hernandes ◽

Reinaldo J. F. Feres

Keyword(s):

Phylogenetic Analysis ◽

Spider Mite ◽

Cladistic Analysis ◽

Taxonomic Revision ◽

Morphological Characters ◽

Cultivated Plants ◽

Monophyletic Clade ◽

Taxonomic Review ◽

The Family

Despite their great importance as pests of cultivated plants worldwide, members of the family Tetranychidae have never been subjected to a thorough cladistic analysis to reveal the history and relationships among related genera. Herein, we provide the first phylogenetic analysis and taxonomic review of species of the genera Aponychus, Paraponychus and Stylophoronychus using morphological characters. The results indicate a monophyletic clade uniting the aforementioned genera, although none of the three genera were recovered as monophyletic. We reinstate the tribe Aponychini as the taxon containing those three genera. Aponychus bambusae and A. aequilibris are herein considered junior synonyms of Stylophoronychus vannus and A. corpuzae, respectively.

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