Freshwater sponges (Porifera, Spongillidae) of eastern Canada: taxonomy, distribution, and ecology

1993 ◽  
Vol 71 (4) ◽  
pp. 665-682 ◽  
Author(s):  
Anthony Ricciardi ◽  
Henry M. Reiswig

During a recent survey of the freshwater sponges of eastern Canada (from Ontario to Newfoundland), 15 species were recorded, representing approximately 50% of the total number of species known from North America. Radiospongilla crateriformis, Spongilla aspinosa, and Trochospongilla horrida are reported from Canada for the first time. Two problematic species, Corvosporigilla novaeterrae and Spongilla johanseni, are reviewed and their status is revised. Detailed notes on taxonomy, morphology, distribution, and ecology are given. New limits of tolerance with respect to pH, water temperature, and calcium and magnesium concentrations are established for several species. A taxonomic key to the freshwater sponges of eastern Canada is presented.

1975 ◽  
Vol 53 (12) ◽  
pp. 1898-1906 ◽  
Author(s):  
Fiorenza G. Margaritora ◽  
Etienne Magnin ◽  
Bernadette Pinel-Alloul

Some littoral species of Cladocera of Quebec were studied in a series of samples collected from March to October 1974, in three lakes at the Biology Station of St. Hippolyte. Forty-three species of Cladocera are listed, bringing to 71 the number of species known in Quebec. Sixteen are described for the first time in this region; 2 of them, known in North America, are new ones for Canada (Alona circumfimbriata Megard and A. rustica americana Flössner and Frey). Also given are some ecological, biological, and systematic details concerning the most important species.


1994 ◽  
Vol 72 (2) ◽  
pp. 339-359 ◽  
Author(s):  
Anthony Ricciardi ◽  
Henry M. Reiswig

The freshwater Bryozoa (Ectoprocta) are one of the most poorly known faunal groups in Canada. A recent survey of 80 freshwater habitats in eastern Canada (from Ontario to Newfoundland) revealed 14 species of bryozoans, representing 56% of described species in North America. The greatest numbers of species and specimens were found in alkaline waters (pH 7.0–9.8) near lake outflows, wherever hard substrates were present. Paludicella articulata, Cristatella mucedo, Fredericella indica, and Plumatella fungosa are among the most frequently encountered, widely distributed, and eurytopic species. Pottsiella erecta and Plumatella fruticosa are rare, and new to eastern Canada. Lophopodella carteri, an exotic Asian species discovered in Lake Erie in the early 1930s, has become firmly established in the lower Ottawa and upper St. Lawrence rivers. Detailed notes on taxonomy, morphology, distribution, and ecology are given for each bryozoan. New limits of tolerance to water temperature, pH, and calcium and magnesium hardness are established for several species. A taxonomic key to the freshwater bryozoans of eastern Canada, including a key to statoblast types, is presented for the first time.


1991 ◽  
Vol 123 (5) ◽  
pp. 1125-1133 ◽  
Author(s):  
Jean-François Landry

AbstractColeophora deauratella Lienig and Zeller is reported for the first time in North America. This casebearer species was introduced accidentally from Europe almost 30 years ago but remained unrecognized. It currently is known from eastern Canada and northeastern United States. Larvae feed on seeds of red clover, Trifolium pratense L. Diagnostic characters of the larval case and the adult, as well as features separating C. deauratella from two similar casebearer species, are presented.


1984 ◽  
Vol 62 (1) ◽  
pp. 170-180 ◽  
Author(s):  
Shannon M. Berch ◽  
J. André Fortin

The known geographic distributions of Endogone pisiformis, Endogone incrassata, Endogone lactiflua, Glomus macro-carpum, Glomus radiatum, and Glomus vesiculifer (Endogonaceae) are extended into the northwest of mainland Canada. Descriptions and observations of taxonomic and ecological features of these collections are provided. Morphologically, these six fungi resemble collections reported from elsewhere in North America. Azygospores are reported, for the first time in the genus, for Endogone pisiformis.


1974 ◽  
Vol 52 (11) ◽  
pp. 2427-2434 ◽  
Author(s):  
C. D. Bird

The four North American species of Evernia, E. divaricata (L.) Ach., E. mesomorpha Nyl., E. perfragilis Llano, and E. prunastri (L.) Ach., are discussed from the standpoint of taxonomy, distribution, and ecology. The North American distributions of E. divaricata and E. perfragilis are mapped for the first time. A puzzling lichen found on the ground in alpine areas from New Mexico north to Alberta is regarded as an ecological variant of E. divaricata.


2021 ◽  
Vol 24 (3) ◽  
pp. 55-62
Author(s):  
Janan J.Toma ◽  
◽  
Farhad H.Aziz ◽  

Monthly samples of algae collected in eighteen sites of springs and streams through September-2019 till August-2020during morning till afternoon in Shaqlawa district within Erbil Province, Kurdistan Region of Iraq. Eleven various kinds of algae were identified for first time in Iraqi inland water, distributed to three genera of blue-green algae, which include Marssoniella elegans, Pseudoanabaena catenata,Cyanotheca aeroginosa,also in Pyrrophyta identified four new species genera include Gymnodium inversum, Woloszynskia tenuissima, Peridinium goslaviense, Hemidinium naustumandXanthopyta recorded three species were Ophiocytium arbuscula, Ophiocytium parvulum, Tetraedriella polychloriswhile Cryptophyta only have one species was Cryptomonas reflex. According to physicals and chemicals characteristics, water temperature varied from 14.942oC to 18.475oC, pH lies on alkaline side of neutrality, electrical conductivity ranged between (627.472-2092.306s/cm) and high concentration of salinity recorded in Azarian spring, higher value of calcium and magnesium recorded in Azarian and Benwan springs were 294.84 mg/L and 106.578 mg/L respectively. Lower value of nitrate and phosphate reported in Sard and Piawan springs, while lower value of sulfate observed in Prenga spring.


Author(s):  
PIERRE MORISSET

Pehr Kalm's diaries of his travels in North America are now being edited for publication in their entirety for the first time. They contain a great deal of botanical data which were not included in the account En Resa til Norra America published by the Royal Swedish Academy of Sciences in three volumes, 1753–1761, and later transalted into English as Travels in North America by J. A. Forster, Warrington, 1770–1771. This paper analysed Kalm's botanical observations during his trip to Canada in the summer of 1749 and considered such matters as the number of species observed and described — many of which did not find their way into Linnaeus' Species Plantarum despite the close connection between the two men. Changes in the distribution of some species since 1749, the introduction of weeds and other aliens were also discussed.


2010 ◽  
Vol 42 (5) ◽  
pp. 587-600 ◽  
Author(s):  
Alan M. FRYDAY ◽  
James C. LENDEMER

AbstractThe species assigned to the genus Catillochroma are reassessed. The two characters used to characterize Catillochroma, exciple anatomy and thalline chemistry, are shown to be variable and contradictory with a number of intermediates. Consequently, Catillochroma is reduced to synonymy with Megalaria, and the species previously placed in Catillochroma transferred, or returned, to Megalaria. As such, the following new combinations are proposed: Megalaria anaglyptica, M. endochroma, M. intermiscens and M. leptocheila. The genus Lopezaria is also shown to be related to Megalaria and to be closely related to the type species of Catillochroma, C. endochroma, and so is also reduced to synonymy with Megalaria. A number of species found to have been misplaced in Catillaria are also transferred to Megalaria: M. leucochlora, M. melanopotamica, M. obludens, M. pannosa and M. phaeolomiza. Megalaria imshaugii is reduced to synonymy with M. obludens, Megalaria pannosa is reported for the first time from North America and Lopezaria isidiza is reported for the first time from outside Asia from Jamaica.


Zootaxa ◽  
2018 ◽  
Vol 4455 (2) ◽  
pp. 389 ◽  
Author(s):  
DONALD F. McALPINE ◽  
WILLIAM A. SHEAR

The millipede Craspedosoma raulinsii (Craspedosomatidae) is widespread in Central Europe from Belarus and southern Scandinavia west to Britain and Ireland. Although the species is often not common and rarely encountered (Blower 1985, Hoffman 1999, Lee 2006), Kime (2004) reports C. raulinsii as the third most widespread millipede in Belgium. Shelley (1990) reported C. raulinsii (as C. rawlinsii) for the first time from North America (from Gatineau Park, Quebec, Canada) and noted the occurrence is the first introduction of a representative of the order Chordeumatida in the New World. Here we report new records that suggest widespread occurrence of this introduced millipede in eastern Canada and comment on the commonly-applied spelling of the specific epithet of the species. Vouchers have been deposited in the collections of the New Brunswick Museum (NBM).


1936 ◽  
Vol 14d (9) ◽  
pp. 97-130 ◽  
Author(s):  
C. R. Twinn

Twenty-three species and one variety belonging to three subgenera of the family Simuliidae are recorded and described. Of these, twelve species and the variety are new to science. Only two of the remaining eleven species of other authors have been previously recorded in Eastern Canada; two others, originally described in Europe, are recorded in North America for the first time, and the hitherto unknown male of a fifth species is described. The adult forms and the pupae and cocoons of these species are described, and the genitalia of both sexes of flies are figured. In addition, notes on the habitats, distribution, species associations, and similar information of value in identifying the species are given. Keys to the subgenera and species, including both sexes of adults and the pupae are an important feature.


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