Showing papers on "Genus published in 1974"
Journal Article•
TL;DR: Two subgenera are herein raised to generic rank and a new genus is described of the Paguridea (exclusive of the Lithodidae) from northwestern North America.
Abstract: A systematic study has been made of the Paguridea (exclusive of the Lithodidae) from northwestern North America. In addition to the redescriptions of all known species, two subgenera are herein raised to generic rank and a new genus is described. Several systematic problems have been resolved, and have resulted in the suppression of several specific names familar to North American carcinologists.
125 citations
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TL;DR: Eight species of euantennariaceous sooty moulds are distinguished in about 250 collections from New Zealand, and E. tropicicola, the type species of this genus, and Hormisciella rubi Bat is considered a possible name for its...
Abstract: Eight species of euantennariaceous sooty moulds are distinguished in about 250 collections from New Zealand. Four species are described and illustrated with Euantennaria ascostromata, and Antennatula and Hormisciomyces imperfect states; these are E. mucronata (Moet.) Hughes, E. novae-zelandiae nsp., E. pacifica nsp., and E. caulicola n.sp. Four new species of Antennatula are described and illustrated; these are A. triseptata n.sp., A. fisherae n.sp., A. dingleyae n.sp., and A. fraserae n.sp. A. fisherae and A. dingleyae also produce a Hormisciomyces phialidic state. The two original species of Aithalomyces Woronichin are induded in Euantennaria as E. arctica (Woronichin) n.comb. and E. rhododendri (Woronichin) n.comb. Both species are illustrated and described. Limacinia alaskensis Sacc. & Scalia is considered to be a possible earlier synonym of E. rhododendri. Brief notes are given on E. tropicicola, the type species of this genus, and Hormisciella rubi Bat. is considered a possible name for its...
118 citations
TL;DR: The knowledge of the flea fauna of Australia, including Tasmania and Macquarie I., summarized here, is derived from a large number of collections made since the mid-nineteenth century, and scattered publications, mainly taxonomic, from 1843 to 1972.
Abstract: Our knowledge of the flea fauna of Australia, including Tasmania and Macquarie I., summarized here, is derived from a large number of collections made since the mid-nineteenth century, and scattered publications, mainly taxonomic, from 1843 to 1972. The taxonomy of several groups of Australian fleas has been reviewed in other recent publications, and no further changes or new forms are described here. A key is given to the genera of Australian fleas, with additional keys to species and subspecies for each polytypic genus. All species are illustrated, the well-known and cosmopolitan species with the minimum of figures, the less well-known endemic species, some of which have not previously been illustrated adequately, more copiously. Diagnoses are given for all taxa, except the superfamilies and subfamilies. Eighty-three species and subspecies from 31 genera and nine families are included. For each species all known host and locality records are given, and the known distribution is mapped. The majority of species are endemic*; eight are indigenous* but occur elsewhere, while 10 are introduced with man and his commensals. The largest Australian family, Pygiopsyllidae, predominantly Australian and New Guinean in distribution, and the exclusively Australian subfamily Stephanocircinae and family Macropsyllidae are associated with both marsupials and rodents. Pulicidae are represented by both endemic and introduced species, associated with marsupials, rodents, man and domestic animals. Of hystrichopsyllids only two endemic species are known, while the bat-fleas (Ischnopsyllidae) are represented by three indigenous genera, only one of which extends beyond the Australian Region. The South American family Rhopalopsyllidae is represented by four species on seabirds, and introduced species of Leptopsyllidae and Ceratophyllidae are recorded. Four of the species listed are known from seabirds on Macquarie I. and have not so far been recorded from Australia or Tasmania. A bibliography of Australian fleas is provided.
92 citations
01 Jan 1974
82 citations
Book•
01 Jan 1974
79 citations
Book•
01 Jan 1974
TL;DR: In this paper, the authors propose a method to find the root cause of the problem of bullying in a video game, which they call "RESUMEN" (Resumeen).
Abstract: RESUMEN . . . . . . . . . . . .
78 citations
TL;DR: Two recently collected Vizella specimens are the first records of this asco-mycete genus in Australia and the genus is discussed and the Australian specimens are described as V. banksiae sp.nov. and V. oleariae sp .nov.
Abstract: Two recently collected Vizella specimens are the first records of this asco-mycete genus in Australia. The genus is discussed and the Australian specimens are described as V. banksiae sp.nov. and V. oleariae sp.nov. The latter possesses a conidial and an apparently spermatial state. In both species the asci arise from a complex system of proliferating croziers. The new family Vizellaceae is described to accommodate Vizella and Blasdalea and is regarded as fairly closely related to the Asterinaceae.
74 citations
TL;DR: Dental peculiarities indicate that tooth replacement processes were suppressed in heterodontosaurids; replacement of the teeth seems to have been restricted to a brief period each year (presumably when heterodonsaurids underwent aestivation or hibernation).
70 citations
TL;DR: The taxonomy of the genera mentioned in the title is discussed as well as the taxonomic position of Typhlotanais longidactylus Shiino, and it is proposed that Leptochelia, Heterotanais, Hargeria, PseudoleptOChelia and PseudonototanaIS should be grouped together in the new family Leptokheliidae.
Abstract: The taxonomy of the genera mentioned in the title is discussed. Leptochelia rapax Harger is designated as type of the new genus Hargeria. Sars's Paratanais is not identical with Dana's Paratanais and therefore it is transferred to the new genus Pseudoparatanais. Nototanais werthi does not belong to Nototanais and is designated as type of the new genus Pseudonototanais. Heterotanais anomalus (syn. algiricus), H. antarcticus, H. magnus, H. provincialis and Leptochelia filum (syn. profunda), L. inermis, L. mercantilis, L. mergellinae are brought together in the new genus Pseudoleptochelia, of which a new species Ps. mortenseni is erected. Acanthotanais Kussakin is identical with Paratanais Dana. The synonymy of these genera and that of Tanaissus Norman & Scott are discussed as well as the taxonomic position of Typhlotanais longidactylus Shiino and the relationships of the genera –Tanaissus excepted. Figures of Paratanais euelpis are given. It is proposed that Leptochelia, Heterotanais, Hargeria, Pseudoleptochelia and Pseudonototanais should be grouped together in the new family Leptocheliidae. Diagnoses are given of the families Paratanaidae and Leptocheliidae and their genera. The taxonomy of the Monokonophora is discussed. In a postscript the generic name Strongylura G. O. Sars, which is preoccupied, has been replaced by Collettea.
69 citations
TL;DR: The discovery of new forms and the present interpretation of hard jaw parts permit construction of a phylogenetic scheme with Dorvillea as the most primitive genus containing living species, and Suggestions are given for the advantageous use of the phenomenon of maxillary replacement in autecoiogical investigation.
67 citations
TL;DR: It is recommended, on the basis of the results reported here and the results of a previous hybridization study, that Listeria grayi and Listersia murrayi be transferred to a new genus, Murraya, as M. grayi, and M. murraya, respectively.
Abstract: The intergeneric relationships of Listeria monocytogenes have been examined by both classic taxonomic criteria and deoxyribonucleic acid (DNA) polynucleotide sequence homology. Analysis of characters according to Adansonian principles indicated that Listeria monocytogenes 19303 was phenotypically most closely related to streptococci, Staphylococcus aureus, and Diplococcus pneumoniae. DNA:DNA hybridization studies, however, failed to reveal significant relatedness between the listeriae and Corynebacteriaceae, Micro-coccaceae, or Lactobacillaceae. It is recommended, on the basis of the results reported here and the results of a previous hybridization study, that Listeria grayi and Listeria murrayi be transferred to a new genus, Murraya, as M. grayi, and M. grayi subsp. murrayi, respectively. A new family, Listeriaceae, is proposed for the genera Listeria and Murraya.
TL;DR: A comprehensive analysis of chrysopid larval systematics is initiated, which defines the series of characters unique to the larvae of this taxon, presents a key to all larval instars of the six species, and describes the three larvalinstars of each species, most of which were previously undescribed.
Abstract: Larvae of the family Chrysopidae possess characteristics useful in classification at the species, genus, and subfamily levels. This study, which initiates a comprehensive analysis of chrysopid larval systematics, describes the important external characteristics of the family and discusses those features which vary between taxa within the family.The carnea- group of the Chrysopa, subgenus Chrysoperla, includes six described North American species, most of which are important in pest management. This paper defines the series of characters unique to the larvae of this taxon, presents a key to all larval instars of the six species, and describes the three larval instars of each species, most of which were previously undescribed.
01 Jan 1974
Journal Article•
TL;DR: It has been a general assumption by botanists who have not worked taxonomically on the genus that Cannabis is monotypic, but the preponderance of literature has treated it as such in the absence of any thorough taxonomic review.
Abstract: It has been a general assumption by botanists who have not worked taxonomically on the genus that Cannabis is monotypic. The preponderance of literature has treated it as such in the absence of any thorough taxonomic review to establish whether the epithet sativa must be restricted to a single morphologically distinct taxon within a more variable genus than presupposed or whether the specimens and literature concerning Cannabis permit the recognition of more than one specific epithet, in accordance with the most recent appearance of the International Code of Botanical Nomenclature. Several aspects of the problem have been enlarged by recent publications attempting to clarify the problem of species distinctions. The excellent work of Small and Beckstead (1973), based almost wholly on cultivated or weedy material, concluded that there was but a single species of Cannabis (on the basis of published chemical data rather than presentation of morphological evidence), even though three distinct chemical phenotypes from three geographically disjunct latitudes were recognized and plotted on a scatter diagram. One of the several unfortunate aspects of this work was that plants growing in Ottawa under uniform conditions were not able to reach maturity in many instances, due to the abbreviated growing season; thus morphological distinctions could not always be accessed from a study of mature specimens. Furthermore, this limited growing season did not permit the study of perennial forms. Most important is the fact that the
Book•
01 Jan 1974
Journal Article•
TL;DR: In the present paper Irpex is maintained as a monotypic genus, while Steccherinum is accepted with 17 species, of which S. willisii is described as new species and S. hydneum is proposed as a new combination.
Abstract: In the present paper Irpex is maintained as a monotypic genus, while Steccherinum is accepted with 17 species. Of these S. ethiopicum, S. galeritum, S. gilvum, S. lanestre, and S. willisii are described as new species, S. hydneum is proposed as a new combination. A considerable proportion of the paper is devoted to all the species (and a few subspecific taxa) that have been wrongly described in or transferred to Irpex and Steccherinum. Some of the specific epithets are transferred to other genera, such as Beenakia (p. 555), Climacodon (p. 546), Dentipellis (p. 551, 558) and Hyphodontia (p. 567).
01 Jan 1974
TL;DR: Studies in Galapagos Plants XIV.
Abstract: Studies in Galapagos Plants XIV. The Genus Scalesia Arn. , Studies in Galapagos Plants XIV. The Genus Scalesia Arn. , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
TL;DR: The present paper describes, keys, and figures the 20 species of Typhlodromus Scheuten known to occur in Canada and Alaska, and includes full collection records.
Abstract: Three genera of predacious mites in the subfamily Phytoseiinae (Acarina: Phytoseiidae) are known to occur in Canada and Alaska. Chant reviewed the genus Phytoseius Ribaga in Canada, and Chant and Hansell reviewed the genus Amblyseius Berlese in Canada and Alaska. The present paper, based on examination of several thousands of specimens, describes, keys, and figures the 20 species of Typhlodromus Scheuten known to occur in Canada and Alaska, and includes full collection records. Two new species arc described.
01 Jan 1974
TL;DR: The marmoratus group may be the ancestral group in this genus and provide important evolutionary insight related to the phylogeny of several leptodactylid genera.
Abstract: Karyotypes are presented and analyzed for 19 species of frogs in the genus Leptodactylus. Chromosomal distinctiveness was found in the marmoratus species group and for three of the four sampled species in the melanonotus species group. The other three species groupings are not as easily defined using chromosomes. Intergeneric karyotypic similarities in the family Leptodactylidae suggest that a 26-chromosome compliment is the ancestral condition in the genus Leptodactylus. The ethological evolutionary trend in this genus has probably been from terrestrial to aquatic and not the reverse as was previously believed. The marmoratus group may be the ancestral group in this genus and provide important evolutionary insight related to the phylogeny of several leptodactylid genera.
01 Jan 1974
01 Jan 1974
TL;DR: A revised diagnosis of the genus Stygobromus is given, accompanied by a redescription of S. hubbsi Shoemaker from Oregon and the descriptions of 17 new species from the western United States.
Abstract: Holsinger, John R. Systematics of the Subterranean Amphipod Genus Stygobromus (Gammaridae), Part I: Species of the Western United States. Smithsonian Contributions to Zoology, number 160, 63 pages, 37 figures, 1974.—The subterranean amphipod genus Stygobromus is restricted to North America with the exception of one poorly known species from Siberia. Stygobromus is a member of the Crangonyx group of the family Gammaridae and is closely related to two other North American subterranean genera—Apocrangonyx and Stygonectes. It also has a close affinity with the Holarctic genus Synurella. Species of Stygobromus are widely distributed in cave waters and related ground water habitats throughout the greater part of the cavernous regions of the eastern, middle western, and far western United States. A revised diagnosis of the genus is given, accompanied by a redescription of S. hubbsi Shoemaker from Oregon and the descriptions of 17 new species from the western United States. Of the 18 species recorded from the West, 15 belong to the newly erected hubbsi group. Stygobromus putealis (Holmes) from wells in Wisconsin is also assigned to this evolutionary group. Members of the hubbsi group are closely allied morphologically and are assumed to have been derived from a common ancestor. The western species inhabit a variety of subterranean biotopes, including limestone and lava caves, wells, springs, and one deep lake. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Smithsonian Year. SI PRESS NUMBER 4926. SERIES COVER DESIGN: The coral Montastrea cavernosa (Linnaeus). Library of Congress Cataloging in Publication Data Holsinger, John R. Systematics of the subterranean amphipod genus Stygobromus (Gammaridae) (Smithsonian contributions to zoology, no. 160) Bibliography: p.
TL;DR: A new parasitic genus and species of Lithophylloideae, and its host Lithophyllum yessoense are described, which are small, colourless, develop host-penetrating haustoria and possess smaller conceptacles, slightly smaller cells and thinner epithallia.
Abstract: Ezo epiyessoense, a new parasitic genus and species of Lithophylloideae, and its host Lithophyllum yessoense are described The parasitic plants are small, colourless, develop host-penetrating haus
01 Jan 1974
TL;DR: Flint et al. as mentioned in this paper proposed the genus Smicridea, which is characterized in its adult, larval, and pupal stages, and its affinities and distribution discussed.
Abstract: Flint, Oliver S., Jr. Studies of Neotropical Caddisflies, XVII: The Genus Smicridea from North and Central America (Trichoptera: Hydropsychidae). Smithsonian Contributions to Zoology, number 167, 65 pages, 227 figures, 1974.— The genus Smicridea is characterized in its adult, larval, and pupal stages, and its affinities and distribution discussed. The tribe Smicrideini is proposed in the subfamily Hydropsychinae for the genera Smicridea McLachlan and Asmicridea Mosely and Kimmins. In the region covered, the genus is composed of 2 subgenera, the nominate and Rhyacophylax Miiller, which are keyed, differentiated, and the species in each assigned to species groups. The subgenus Smicridea (Antarctopsyche Ulmer, new synonym) contains 17 species, and the subgenus Rhyacophylax contains 12 species, all of which are keyed, described, and figured, with habitat notes and distribution added. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Smithsonian Year. SI PRESS NUMBER 5001. SERIFS COVER DESICN: The coral Montastrea cavernosa (Linnaeus). Library of Congress Cataloging in Publication Data Flint, Oliver S. Studies of neotropical caddisflies, XVII. (Smithsonian contributions to zoology, no. 167) 1. Smicridea. 2. Insects—North America. 3. Insects—Central America. I. Title. II. Series: Smithsonian Institution. Smithsonian contributions to zoology, no. 167. QL1.S54 no. 167 [SL518.H94] 595.7'45 73-16098 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 Price $1.50 (paper cover)
Journal Article•
TL;DR: A new species and genus, Petraphera vivescenticula, is proposed for this microfossil, which is morphologically similar to the living cyanophyte genus Raphidiopsis, and would constitute the first known occurrence of cell diversification in the Precambrian.
Abstract: The well-preserved fossil remnants of filamentous blue-green algae have been found in petrographic thin sections of a dolomitic limestone stromatolite in the Transvaal Sequence of South Africa. Some of these filaments contain enlarged cells which are interpreted as akinetes. A new species and genus, Petraphera vivescenticula, is proposed for this microfossil, which is morphologically similar to the living cyanophyte genus Raphidiopsis. This would constitute the first known occurrence of cell diversification in the Precambrian with an age of about 2.2 x 10(9) years.
TL;DR: Conclusons based on a program of numerical taxonomy utilizing 45 characters measured in 32 species of darters resulted in the transfer of Percina crassa and P. roanoka and the creation of a ninth subgenus (Odontopholis) to contain P. cymatotaenia and an undescribed species.
Abstract: Conclusons based on a program of numerical taxonomy utilizing 45 characters measured in 32 species of darters resulted in the transfer of Percina crassa and P. roanoka from the subgenus Ericosma to Alvordius, the reduction of Hypohomus to a monotypic subgenus, and the creation of a ninth subgenus (Odontopholis) to contain P. cymatotaenia and an undescribed species. Diagnoses for all nine subgenera of Percina and a phylogeny of the genus are given.
TL;DR: Inodosporus spraguei infects each muscle fiber completely until filaments are destroyed, and infections are spread throughout the animal until most fibers are infected, Curiously, uninfected muscle cells seldom show serious pathological changes caused by massive infections of neighboring cells.
Abstract: The new genus Inodosporus was erected to accept I. spraguei, a new species having eight sporoblasts per pansporoblast with each subsequent spore possessing three or four basal spore-tails and one branched apical one. It is primarily by the apical tail that the species is separated from the only other recognized species, I. octospora (Henneguy, 1892) comb. n., formerly Thelohania octospora.