ON THE NEMATODE GENUS RHABDOCHONA RAILLIET, 1916 (NEMATODA: SPIRUROIDEA)

1951 ◽  
Vol 29 (1) ◽  
pp. 1-16 ◽  
Author(s):  
L. P. E. Choquette
Keyword(s):  
New Species ◽  
North America ◽  
Geographical Distribution ◽  
Fish Species ◽  
World Wide ◽  
Wide Distribution ◽  
Systematic Position ◽  
Nematode Genus ◽  
A New Species ◽  
Host List

The systematic position of the genus Rhabdochona Railliet, 1916 and its diagnosis is reviewed. The genus comprising 33 species has a world-wide distribution and has been found, with one exception, in fish. Species from fish in North America are discussed and R. cascadilla Wigdor, 1918 is redescribed; R. laurentiana Lyster, 1940 is considered to be identical with the latter. A new species, R. milleri, is described. A host list and the geographical distribution of the 33 species of Rhabdochona so far recorded are given.

An outer shelf shelly fauna from Cambrian Series 2 (Stage 4) of North Greenland (Laurentia)

2021 ◽  
Vol 95 (S83) ◽  
pp. 1-41
Author(s):  
John S. Peel
Keyword(s):  
New York ◽  
New Species ◽  
North America ◽  
World Wide ◽  
Wide Distribution ◽  
East Greenland ◽  
North East ◽  
Small Shelly Fossils ◽  
Stage 4 ◽  
North Greenland

AbstractAn assemblage of 50 species of small shelly fossils is described from Cambrian Series 2 (Stage 4) strata in North Greenland, the present day northernmost part of the paleocontinent of Laurentia. The fossils are derived from the basal member of the Aftenstjernesø Formation at Navarana Fjord, northern Lauge Koch Land, a condensed unit that accumulated in a sediment-starved outer ramp setting in the transarctic Franklinian Basin, on the Innuitian margin of Laurentia. Most other small shelly fossil assemblages of similar age and composition from North America are described from the Iapetan margin of Laurentia, from North-East Greenland south to Pennsylvania. Trilobites are uncommon, but include Serrodiscus. The Australian bradoriid Spinospitella is represented by a complete shield. Obolella crassa is the only common brachiopod. Hyoliths, including Cassitella, Conotheca, Neogloborilus, and Triplicatella, are abundant and diverse, but most are represented just by opercula. Sclerites interpreted as stem-group aculiferans (sachitids) are conspicuous, including Qaleruaqia, the oldest described paleoloricate, Ocruranus?, Inughuitoconus n. gen., and Hippopharangites. Helcionelloid mollusks are diverse, but not common; they are associated with numerous specimens of the bivalve Pojetaia runnegari. The fauna compares best with that of the upper Bastion Formation of North-East Greenland, the Forteau Formation of western Newfoundland, and the Browns Pond Formation of New York, but several taxa have a world-wide distribution. Many specimens are encrusted with crystals of authigenic albite. New species: Anabarella? navaranae, Stenotheca? higginsi, Figurina? polaris, Hippopharangites groenlandicus, Inughuitoconus borealis, and Ocruranus? kangerluk.UUID: http://zoobank.org/160a17b1-3166-4fcf-9849-a3cabd1e04a3

New combinations and synonyms in the Lichinaceae

1990 ◽  
Vol 22 (2) ◽  
pp. 137-147 ◽  
Author(s):  
Aino Henssen ◽  
Per Magnus Jørgensen
Keyword(s):  
New Species ◽  
World Wide ◽  
Wide Distribution ◽  
New Combinations ◽  
New Synonyms ◽  
The World ◽  
A New Species

AbstractThe following new combinations are made: Anema cernohorskyi (Servít) Henssen, A. prodigulum(Nyl.) Henssen, Cryptothelelaatokkaënsis (Vainio) Henssen, C. rhodosticta (Taylor) Henssen, Gonohymenia heppii (Müll. Arg.) Henssen, G. iodopulchra (Crozals) Henssen, G. minnesotensis (Fink) Henssen, G. polyspora (Magnusson) Henssen, G. schleicheri (Hepp) Henssen, Metamelanea caesiella (Th. Fr.) Henssen, Paulia myriocarpa (Zahlbr.) Henssen, P. pyrenoides (Nyl.) Henssen, P. schroederi (Zahlbr.) Henssen, Peccania arabica (Müll. Arg.) Henssen, P. teretiuscula (Flagey) Henssen, P. tiruncula (Nyl.) Henssen, Pterygiopsis coracodiza (Nyl.) Henssen, P. umbilicaia (Vezda) Henssen, Thelignya groenlandica(Dahl) Henssen, T. Hgnyota (Wahlenb.) P. M. Jørg. & Henssen, Thyrea pachyphylla (Müll. Arg.) Henssen, T.pachyphylla var. laxa (Müll. Arg.) Henssen. The following new names (one as a new species) were found necessary: Pyrenopsis haematina P. M. Jørg. & Henssen and Thyrea confusa Henssen. New synonyms are given for several names. The world-wide distribution of the genera Phloeopeccania and Pterygiopsis is mentioned.

A new Species of Dieuches, Dohrn (Hem. Lygaeidae) injurious to Strawberries in Tasmania

1939 ◽  
Vol 30 (3) ◽  
pp. 305-306 ◽  
Author(s):  
J. W. Evans
Keyword(s):  
New Species ◽  
World Wide ◽  
New South ◽  
New South Wales ◽  
Wide Distribution ◽  
South Wales ◽  
Long Time ◽  
A New Species

The Lygaeid bug described below has been well known as a pest of strawberries in Tasmania for a long time, both Thompson (1895) and Lea (1908) having given particulars of its activities under the name of the “Strawberry Bug.” Lea mentions that it also occurs in Victoria and New South Wales, but as it belongs to cosmopolitan genus with a world-wide distribution, it is possible that the Tasmanian species is distinct.

Biostratigraphic implications of the first North American occurrence of the Upper Mississippian ammonoid Platygoniatites

1993 ◽  
Vol 67 (2) ◽  
pp. 310-313
Author(s):  
Alan L. Titus
Keyword(s):  
New Species ◽  
North America ◽  
North Africa ◽  
Southern Urals ◽  
Wide Distribution ◽  
Southern Europe ◽  
Ural Mountains ◽  
The Southern Urals ◽  
East Central ◽  
A New Species

The late Mississippian ammonoid family Delepinoceratidae is comprised of the genera Platygoniatites and Delepinoceras, and is considered one of the more biostratigraphically significant families for lower Namurian correlation (Manger et al., 1985). Platygoniatites, the earliest member, is known from eastern and southern Europe (Ruzhencev and Bogoslovskaya, 1971; Wagner-Gentis, 1963, 1980) and North Africa (Lemosquet et al., 1985). Despite its wide distribution, Platygoniatites is generally a rare member (with the exception of the southern Ural Mountains) of latest Visean and earliest Namurian faunas. It has never been reported previously from North America, though thousands of ammonoids have been collected here from age equivalent beds. The discovery of a new species of the genus in the late Mississippian faunas of east-central Nevada provides new data for precise correlation of the ammonoid zonations of Gordon (1970) to the type Namurian and indicates a need for revision of the current correlations between the southern Urals and northwestern Europe.

scholarly journals Psoroma nivale (Pannariaceae, lichenized Ascomycota) a new species with dark, elongate squamules and bacilliform ascospores from arctic Québec, Canada

2019 ◽  
Vol 51 (5) ◽  
pp. 419-429 ◽  
Author(s):  
Alan M. FRYDAY ◽  
Arve ELVEBAKK ◽  
Frances L. ANDERSON ◽  
Jean Y. GAGNON
Keyword(s):  
New Species ◽  
North America ◽  
Systematic Position ◽  
Eastern Side ◽  
Bay Area ◽  
Brownish Black ◽  
A New Species

AbstractThe new species Psoroma nivale is described from an area of late snow-lie in the Keglo Bay area on the eastern side of Ungava Bay, northern Québec, Canada. It is superficially similar to P. hypnorum but has a dark, brownish black thallus colour without reddish hues, much-branched, proliferating squamules, thick paraphyses, distinct but inconspicuous IKI+ ascus tube structures, and characteristic elongate, bacilliform, often asymmetrical ascospores. The new species is compared with possible related taxa and its systematic position discussed. A key to the species of pannarioid lichens reported from arctic areas of North America is also provided.

scholarly journals On the rare Neotropical genus Ophionthus Bernhauer (Coleoptera: Staphylinidae: Staphylininae): redescription of the type species and description of a new species

2021 ◽  
Vol 735 ◽  
Author(s):  
Maryzender Rodríguez-Melgarejo ◽  
Mariana Chani-Posse
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Type Species ◽  
Systematic Position ◽  
Museum Collection ◽  
Distribution Map ◽  
Female Characters ◽  
Single Male ◽  
Male Specimen ◽  
A New Species

Two female specimens of the Neotropical genus Ophionthus Bernhauer were found during museum collection surveys, representing different species of the genus. These species are Ophionthus serpentinus Bernhauer, 1908 and O. asenjoi sp. nov. The genus Ophionthus was monotypic until the present study and only known from a single male specimen from Central Peru. The genus is redescribed with the inclusion of female characters from both the type species and the new species here proposed. Additionally, the systematic position of Ophionthus within the Neotropical lineage of Philonthina and its geographical distribution in Peru are reassessed. Descriptions, diagnoses, illustrations, pictures, a cladogram, and a distribution map are provided.

scholarly journals A new species of rake-legged mite, Caeculus cassiopeiae (Prostigmata, Caeculidae), from Canada and a systematic analysis of its genus

ZooKeys ◽  
2020 ◽  
Vol 926 ◽  
pp. 1-23
Author(s):  
Jared Bernard ◽  
Lisa M. Lumley ◽  
Matthias Buck ◽  
Tyler P. Cobb
Keyword(s):  
New Species ◽  
North America ◽  
Geographical Distribution ◽  
Character State ◽  
State Matrix ◽  
Systematic Analysis ◽  
One New Species ◽  
A New Species

The genus Caeculus Dufour (Prostigmata, Caeculidae) contains 19 previously described species, most of which are found in North America, and for which no comprehensive phylogenetic treatment exists. Here, one new species from Alberta, Canada, is described: Caeculus cassiopeiae Bernard & Lumley, sp. nov., and another caeculid known to be present in Canada is documented. The new species is characterized within the genus with a character state matrix, from which an updated key is produced. A systematic analysis of all 20 species based on morphological and geographical distribution traits obtained from literature represents the first phylogenetic review of the genus.

THE TAXONOMY OF SOME NORTH AMERICAN SPECIES OF CHRYSOSPLENIUM L., SECTION ALTERNIFOLIA FRANCHET

1963 ◽  
Vol 41 (1) ◽  
pp. 85-103 ◽  
Author(s):  
J. G. Packer
Keyword(s):  
New Species ◽  
North America ◽  
Chromosome Number ◽  
Geographical Distribution ◽  
North American Species ◽  
World Species ◽  
Old World ◽  
Taxonomic Analysis ◽  
First Time ◽  
A New Species

A reappraisal is presented of the taxonomy of three of the four alternate-leaved species of Chrysosplenium occurring in North America, namely C. tetrandrum, C. iowense, and C. Rosendahlii, the latter a new species described for the first time. The investigation demonstrates that the species can be readily separated morphologically even as seedlings. Each morphological entity is characterized by a different chromosome number, C. tetrandrum 2n = 24, C. Rosendahlii 2n = 96. C. iowense 2n = c.120, and a distinctive geographical distribution. C. iowense, which has on occasions been regarded as identical with C. alternifolium var. sibiricum, is retained as a species in the absence of a modern taxonomic analysis of the Old World species C. alternifolium.

An Overlooked New Endemic Species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) from Mexico

2021 ◽  
Vol 46 (2) ◽  
pp. 333-338
Author(s):  
Eduardo Ruiz-Sanchez ◽  
Christopher D. Tyrrell ◽  
J. Luis Vigosa-Mercado
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Endemic Species ◽  
Wide Geographical Distribution ◽  
A New Species

Abstract— Rhipidocladum is the fourth most speciose genus in the bamboo subtribe Arthrostylidiinae. The species in this genus have a wide geographical distribution from North America (Mexico) to South America (Argentina). In Mexico, there are five Rhipidocladum species, two of which are endemic. During a recent review of herbaria, we found some specimens of Rhipidocladum from Guerrero, Jalisco, and Nayarit that do not fit morphologically with any of the five Rhipidocladum species presently known in Mexico nor any other species in the genus. Here we describe and illustrate Rhipidocladum barbinode, a new species endemic to Mexico. We additionally provide an updated morphological key to the Rhipidocladum species of Mexico.

A new species of Cyrtopodium (Orchidaceae: Cyrtopodiinae) from Belize

Phytotaxa ◽  
2019 ◽  
Vol 424 (2) ◽  
pp. 71-86 ◽  
Author(s):  
GUSTAVO A. ROMERO-GONZÁLEZ ◽  
GERMÁN CARNEVALI ◽  
RODRIGO DUNO ◽  
WILLIAM R. CETZAL-IX ◽  
IVÓN M. RAMÍREZ-MORILLO ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
Central America ◽  
Geographical Distribution ◽  
Comparative Anatomy ◽  
Abscission Layer ◽  
The Caribbean ◽  
A New Species

A new species of Cyrtopodium from Belize, C. vestitum, is described and illustrated. Its flowers are indistinguishable from those of Cyrtopodium macrobulbon, but the pseudobulbs are relatively shorter and thicker, ovoid ellipsoid, bearing proportionately more, densely packed internodes, and the leaves do not present an articulation, i.e., an abscission layer, between the sheath and the blade and are thus marcescent. A comparative anatomy study of this tissue is presented, contrasting its presence in C. macrobulbon and the lack thereof in the new species. This species should be considered Endangered (EN) because of its restricted geographical distribution in central Belize. An updated key to the species of Cyrtopodium from North America, the Caribbean, and Central America is also included.

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