Corrigendum to: Lamprothamnium in Australia (Characeae, Charophyceae)

2013 ◽  
Vol 26 (6) ◽  
pp. 475
Author(s):  
Michelle T. Casanova
Keyword(s):  
New Species ◽  
Species Level ◽  
Type Material ◽  
Review Of The Literature ◽  
Comprehensive Review ◽  
The Past

Charophytes in the genus Lamprothamnium exhibit a large amount of diversity, particularly in the examples from Australia, although little of that variation has been recognised at species level in the past. The Australian members of the genus are revised here on the basis of extensive new collections, examination of specimens in herbaria and comprehensive review of the literature and available type material. The existing species Lamprothamnium macropogon (A.Braun) Ophel, L. inflatum (Fil. & G.O.Allen ex Fil.) A.García & Karol and L. heraldii A.García & Casanova are retained, eight new species are described (L. australicum Casanova, L. beilbyae Casanova, L. capitatum Casanova, L. compactum Casanova, L. coorongense Casanova, L. diminutum Casanova, L. macroanthum Casanova and L. stipitatum Casanova) and two taxa variously treated at infraspecific rank in Lychnothamnus are transferred to Lamprothamnium at species rank (L. cockajemmyense Casanova, L. tasmanicum (A.Braun) Casanova). Neither L. papulosum (Wallr.) J.Groves nor L. succinctum (A.Braun) R.D.Wood are confirmed for Australia after examination of the type material of these species. Species are distinguished by the arrangement of the gametangia, morphology of the fertile whorls and characteristics of the oospores. Four of these species are dioecious and nine are monoecious, which supports published conjectures concerning the biogeography of charophyte species (Proctor (1980): J. Phycol. 16, 218–233, doi:10.1111/j.1529-8817.1980.tb03023.x).

Lamprothamnium in Australia (Characeae, Charophyceae)

2013 ◽  
Vol 26 (4) ◽  
pp. 268 ◽  
Author(s):  
Michelle T. Casanova
Keyword(s):  
New Species ◽  
Species Level ◽  
Type Material ◽  
Review Of The Literature ◽  
Comprehensive Review ◽  
The Past

Charophytes in the genus Lamprothamnium exhibit a large amount of diversity, particularly in the examples from Australia, although little of that variation has been recognised at species level in the past. The Australian members of the genus are revised here on the basis of extensive new collections, examination of specimens in herbaria and comprehensive review of the literature and available type material. The existing species Lamprothamnium macropogon (A.Braun) Ophel, L. inflatum (Fil. & G.O.Allen ex Fil.) A.García & Karol and L. heraldii A.García & Casanova are retained, eight new species are described (L. australicum Casanova, L. beilbyae Casanova, L. capitatum Casanova, L. compactum Casanova, L. coorongense Casanova, L. diminutum Casanova, L. macroanthum Casanova and L. stipitatum Casanova) and two taxa variously treated at infraspecific rank in Lychnothamnus are transferred to Lamprothamnium at species rank (L. cockajemmyense Casanova, L. tasmanicum (A.Braun) Casanova). Neither L. papulosum (Wallr.) J.Groves nor L. succinctum (A.Braun) R.D.Wood are confirmed for Australia after examination of the type material of these species. Species are distinguished by the arrangement of the gametangia, morphology of the fertile whorls and characteristics of the oospores. Four of these species are dioecious and nine are monoecious, which supports published conjectures concerning the biogeography of charophyte species (Proctor (1980): J. Phycol. 16, 218–233, doi:10.1111/j.1529-8817.1980.tb03023.x).

Diagnosis and Management of Nonocclusive Mesenteric Ischemia

2018 ◽  
Vol 02 (03) ◽  
pp. 240-243
Author(s):  
Himani Agarwal ◽  
Anil Pillai ◽  
Sanjeeva Kalva
Keyword(s):  
Early Diagnosis ◽  
Clinical Diagnosis ◽  
Mesenteric Ischemia ◽  
Mortality Rates ◽  
Review Of The Literature ◽  
Radiological Findings ◽  
Nonocclusive Mesenteric Ischemia ◽  
Comprehensive Review ◽  
The Past ◽  
Venous Circulation

AbstractAcute hypoperfusion of the bowel without mechanical occlusion of the arterial or venous circulation is referred to as nonocclusive mesenteric ischemia (NOMI) and is responsible for approximately one fourth of all arterial causes of mesenteric ischemia. Patients present with nonspecific symptoms, making clinical diagnosis difficult. Prognosis is poor with high mortality rates. Mortality rates have improved during the past two decades from 80 to 50% due to early diagnosis and prompt initiation of treatment. In this review, we discuss the etiology, pathophysiology, and symptoms of NOMI as well as radiological findings and management along with comprehensive review of the literature.

Understanding Outsourcing of Information Systems

2014 ◽  
pp. 199-220 ◽  
Author(s):  
Luca Giustiniano ◽  
Lucia Marchegiani ◽  
Enzo Peruffo ◽  
Luca Pirolo
Keyword(s):  
Information Systems ◽  
External Environment ◽  
The Body ◽  
Clear Understanding ◽  
Review Of The Literature ◽  
Comprehensive Review ◽  
Extant Literature ◽  
The Past ◽  
Body Of Knowledge ◽  
Is Outsourcing

Many decisions on IS investments have made during the past 20 years but yet, the extant literature does not provide a clear understanding of the phenomenon of IS outsourcing. This chapter answers two main questions relevant to researchers and practitioners: 1) What are the main findings so far in IS outsourcing literature? 2) What do we still need to learn? Through a comprehensive review of the literature, the authors offer systematization of the body of knowledge on outsourcing, its implications on firms’ boundaries, and the theoretical challenges. The MIS perspective appears to be very present, both by considering technology as part of the external environment and by exploring IS and IT as areas for important sourcing decision. In conclusion, implications for managers are drawn.

A checklist and key to the snakes of the genus Geophis (Squamata: Colubridae: Dipsadinae), with commentary on distribution and conservation

Zootaxa ◽  
2007 ◽  
Vol 1395 (1) ◽  
pp. 1-31 ◽  
Author(s):  
LARRY DAVID WILSON ◽  
JOSIAH H. TOWNSEND
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Species Group ◽  
Species Level ◽  
Western Hemisphere ◽  
Type Material ◽  
Group Assignment ◽  
Distributional Patterns ◽  
Taxonomic History ◽  
Major Treatment

Geophis Wagler is the fourth largest genus of colubrid snakes in the Western Hemisphere, with 46 species currently recognized. Since the last major treatment of this genus, there have been 12 new species described, three taxa elevated to the species level, and two taxa previously recognized at the species level synonymized with other taxa. We present a checklist for the genus Geophis, summarizing information on taxonomic history, type material and locality, distribution, and species group assignment for 46 species. We also provide an identification key for the 46 species, followed by a brief analysis of distributional patterns and conservation status.

scholarly journals From 1900 to 2000: History of Earthworm taxonomy in the North and Northeast of Brazil and its current distribution in Brazilian Biomes

2020 ◽  
Vol 51 (3) ◽  
pp. 21-29
Author(s):  
Sandriel Costa Sousa ◽  
Luis Manuel Hernández-García ◽  
Martin Lindsey Christoffersen
Keyword(s):  
New Species ◽  
Exotic Species ◽  
Current Distribution ◽  
Native Species ◽  
Northeastern Brazil ◽  
Review Of The Literature ◽  
Slow Pace ◽  
The Past ◽  
The North ◽  
History Of

One of the initial milestones for earthworm taxonomy was the work of Michaelsen (1900), “Das Tierreich Oligochaeta”. During this period only two exotic species of the genus Amynthas were recorded for the North and Northeast of Brazil. A century has passed and little is known about the taxonomy of earthworms in these two regions and the distribution of these organisms in Brazilian Biomes. The Brazilian territory is divided into six large biomes, Amazonian, Caatinga, Cerrado, Atlantic Forest, Pampa, and Wetlands. Little is known about the distribution of earthworms in these environments. This article provides a review of the literature on the progress of taxonomy in northern and northeastern Brazil over a century and provides the current distribution of earthworms in Brazilian biomes. In the first four decades the taxonomy has advanced at a slow pace, with only 19 new species recorded. With the beginning of Gilberto Righi’s work, earthworm taxonomy has advanced significantly. After Righi’s death in 1999, taxonomy in the North and Northeast has only begun breathing again within the past two years, in which the description of nine new species and two new genera have appeared. There are currently 174 species distributed in thirteen of the sixteen states that make up the North and Northeast regions of Brazil. Regarding distribution, the Amazon, Mata Atlantica and Cerrado biomes stand out for being the most diverse in genera and species, while the Caatinga, Pampa and Pantanal biomes are less diversified. In addition, the Caatinga and Pampa are the only biomes having more exotic species than native species.

scholarly journals Echoes from the past – the identity of Sundathelphusa picta (von Martens, 1868) and descriptions of two new species of freshwater crab (Crustacea, Brachyura, Gecarcinucidae, Sundathelphusa) from Luzon Island, the Philippines

2020 ◽  
Vol 14 (2) ◽  
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
The Philippines ◽  
Type Locality ◽  
Type Material ◽  
Freshwater Crab ◽  
The Past ◽  
Two New Species

The poorly known Philippine freshwater crab, Sundathelphusa picta (von Martens, 1868) from Luzon Island is re-described and re-illustrated, using type material as well as other specimens sampled from near its type locality. Two similar congeners from Luzon, S. uva sp. nov. and S. angelito sp. nov., from the provinces of Bataan and Rizal, respectively, are described as new. These three species are united by their relatively small size, rounded and dome-shaped carapaces, proportionately short ambulatory legs, and stout male first gonopods. They are distinguished from each other by a suite of morphological characters, particularly of the carapace, male pleon and gonopods.

scholarly journals Trichopolydesmidae from Cameroon, 2: A species-level reclassification of Afrotropical trichopolydesmids (Diplopoda, Polydesmida), with two new species and two new records from Cameroon, and two new species from the Nimba Mountains, Guinea

ZooKeys ◽  
2019 ◽  
Vol 891 ◽  
pp. 31-59
Author(s):  
Sergei I. Golovatch ◽  
Armand Richard Nzoko Fiemapong ◽  
Didier VandenSpiegel
Keyword(s):  
New Species ◽  
New Records ◽  
Species Level ◽  
Type Material ◽  
Two New Species

A revised classification of Afrotropical Trichopolydesmidae is presented. The fauna presently contains as many as 52 species in six recognized genera, with numerous new transfers/combinations involved: Bactrodesmus Cook, 1896 (3 species, including B. grandissp. nov. from the Nimba Mountains, Guinea), Eburodesmus Schubart, 1955 (2 species), Hemisphaeroparia Schubart, 1955 (26 species, including one old species, Polydesmus parvulus Porat, 1894, revised from type material and provisionally assigned to Hemisphaeroparia, as well as two new records and two new species from Cameroon: H. longibrachiatasp. nov. and H. avissp. nov.), Mecistoparia Brolemann, 1926 (3 species), Physetoparia Brolemann, 1920 (12 species, including P. complexasp. nov. from the Nimba Mountains, Guinea), and Sphaeroparia Attems, 1909 (6 species). The hitherto enigmatic genus Bactrodesmus is redefined, but the monotypic Trichozonus Carl, 1905 still remains dubious.

Studies on neotropical Phasmatodea II: Revision of the genus Malacomorpha Rehn, 1906, with the descriptions of seven new species (Phasmatodea: Pseudophasmatidae: Pseudophasmatinae)

Zootaxa ◽  
2008 ◽  
Vol 1748 (1) ◽  
pp. 1 ◽  
Author(s):  
OSKAR V. CONLE ◽  
FRANK H. HENNEMANN ◽  
DANIEL E. PEREZ-GELABERT
Keyword(s):  
Puerto Rico ◽  
New Species ◽  
Dominican Republic ◽  
Type Species ◽  
Original Description ◽  
Species Level ◽  
Type Material ◽  
Greater Antilles ◽  
First Time

The genus Malacomorpha Rehn, 1906 is revised at the species-level, based upon examination of all necessary type-material and extensive material housed in ANSP, CMNH and USNM mainly collected on nine expeditions to the Dominican Republic, including collections at 280 sites distributed throughout the country. A re-description of the genus and detailed descriptions of all 13 known species are provided. Seven new species are described and illustrated: Malacomorpha bastardoae n. sp., M. macaya n. sp., M. hispaniola n. sp., M. minima n. sp., M. multipunctata n. sp. & M. obscura n. sp.from Hispaniola and M. sanchezi n. sp. from Puerto Rico. The eggs of M. bastardoae n. sp., M. cyllarus (Westwood, 1859), M. jamaicana (Redtenbacher, 1906), M. multipunctata n. sp., M. obscura n. sp., M. sanchezi n. sp., and M. spinicollis (Burmeister, 1838) are described and illustrated, those of the four latter species for the first time. According to the original description and distribution Phasma graveolens King, 1867 is obviously a synonym of M. cyllarus (Westwood, 1859), and not a synonym of Anismorpha buprestoides (Stoll, 1813) as stated by previous authors (n. syn.). A lectotype is designated for Phasma spinicollis Burmeister, 1838. The newly described species, M. longipennis (Redtenbacher, 1906) and M. hispaniola n. sp. in particular, prove the genera Pseudolcyphides Karny, 1923 (Type-species: Phasma spinicollis Burmeister, 1838) and Alloeophasma Redtenbacher, 1906 (Type-species: Anophelepis poeyi Saussure, 1868) to be synonyms of Malacomorpha Rehn, 1906 (n. syn.). Consequently, the type species of both genera are here transferred to Malacomorpha Rehn, 1906 (n. comb.). The genus now contains apterous, brachypterous and pterous species restricted to the Greater Antilles and Bahamas.

scholarly journals Thalassic Rotifers from the United States: Descriptions of Two New Species and Notes on the Effect of Salinity and Ecosystem on Biodiversity

Diversity ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 28 ◽  
Author(s):  
Francesca Leasi ◽  
Willem H. De Smet
Keyword(s):  
United States ◽  
New Species ◽  
The United States ◽  
Species Level ◽  
Small Species ◽  
Comprehensive Review ◽  
Fundamental Information ◽  
Two New Species ◽  
Nearctic Region ◽  
The U.S

This study shows the results of a rotifer faunistic survey in thalassic waters from 26 sites located in northeastern U.S. states and one in California. A total of 44 taxa belonging to 21 genera and 14 families were identified, in addition to a group of unidentifiable bdelloids. Of the fully identified species, 17 are the first thalassic records for the U.S., including Encentrum melonei sp. nov. and Synchaeta grossa sp. nov., which are new to science, and Colurella unicauda Eriksen, 1968, which is new to the Nearctic region. Moreover, a refined description of Encentrum rousseleti (Lie-Pettersen, 1905) is presented. During the survey, we characterized samples by different salinity values and ecosystems and compared species composition across communities to test for possible ecological correlations. Results indicate that both salinities and ecosystems are a significant predictor of rotifer diversity, supporting that biodiversity estimates of small species provide fundamental information for biomonitoring. Finally, we provide a comprehensive review of the diversity and distribution of thalassic rotifers in the United States. The results of the present study increase the thalassic rotifer record for the U.S. from about 105 (87 at species level) to 124 (106 at species level) taxa.

Miriquidica invadens, an obligate youth parasite on Sporastatia, with remarks and a key to species of the M. griseoatra group

2014 ◽  
Vol 46 (3) ◽  
pp. 303-331 ◽  
Author(s):  
Josef HAFELLNER ◽  
Walter OBERMAYER ◽  
Mauro TRETIACH
Keyword(s):  
New Species ◽  
Life Cycle ◽  
Species Level ◽  
Point Of View ◽  
Type Material ◽  
New Combination ◽  
Key To Species

AbstractThe new species Miriquidica invadens Hafellner, Obermayer & Tretiach is described and reported from Austria, Bulgaria, Italy, Switzerland, France and Spain. From a morphological point of view the species belongs to the M. griseoatra group, in which it is, so far, the only constantly lichenicolous taxon. Chemically it is characterized by the regular presence of miriquidic acid, stictic acid, and constictic acid (in variable amounts). It starts its ontogenetic life cycle as an obligate youth parasite on Sporastatia, usually S. polyspora.Morpho-anatomical treatments of other species of the Miriquidica griseoatra group occurring in Europe, based on the examination of type material, are also presented. According to the characters exhibited by the lectotype of Lecidea contigua var. griseoatra Flot., M. griseoatra (Flot.) Hertel & Rambold is the correct name for a montane species with subdivided areoles and immersed, laterally adnate apothecia with a pigmented hypothecium. Specimens exhibiting this set of characters were usually named M. obnubila auct. According to the characters observed on the lectotype of Lecidea (Biatora) obnubila Th. Fr. & Hellb., M. obnubila (Th. Fr. & Hellb.) Hertel & Rambold is a species with sessile apothecia with a hyaline hypothecium. Lecidea subplumbea Anzi does not constitute a heterotypic synonym of Lecidea griseoatra (Flot.) Schaer. but is the legitimate name at the species level for Miriquidica griseoatra sensu auct., and therefore M. subplumbea (Anzi) Cl. Roux is the correct name for that taxon. Lecidea inserena Nyl. is confirmed as a heterotypic synonym of Lecidea subplumbea Anzi. Lecidea plumbea Garov. ex A. Massal. is an earlier heterotypic synonym of Miriquidica limitata Hertel & Rambold and, therefore, the new combination M. plumbea (Garov. ex A. Massal.) Hafellner, Obermayer & Tretiach is introduced.Lectotypes are designated for Lecidea contigua var. griseoatra Flot., Lecidea inserena Nyl., Lecidea obnubila Th. Fr. & Hellb., Lecidea plumbea Garov. ex A. Massal., and Lecidea subplumbea Anzi. A key to the taxa of the M. griseoatra-group and other Miriquidica taxa with a grey thallus is provided.

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