A Retrospective Study of Dermatophyte Infection in Newfoundland for the Period 1962-1968

The results of a survey of dermatophyte infection in New-foundland for the period 1962 to 1968 are presented. A steady annual rise in the number of specimen submissions is noted, with positive findings in an average of 21.7%. The contribution by source of specimens is recorded, and species distribution indicates that Microsporum canis has behaved in epidemic form whereas other species appear endemic. Trichophyton rubrum infection shows a steady annual increase. No cases of favus have been noted. The distribution of species by anatomical site is indicated.     

New evidence of hexaploidy in' large' African Barbus with some considerations on the origin of hexaploidy

Three species of' large' African Barbus from the Republic of Guinea (West Africa), were characterized by the chromosome numbers (2N) of 148 (B. bynni occidentalis and B. wurtzi ) and 150 (B. petitjeani Daget, 1962). All these species have a karyotype which corresponds to the evolutionary hexaploid level. The karyotype of B. petitjeani is composed of chromosomes clearly grouped into morphologically homomorphic sextets which may document the origin of hexaploidy via an autopolyploidic event. Present findings extend the known distribution of evolutionary hexaploidy in' large' African Barbus to West Africa and show evidence of the pan-African distribution of this phenomenon.     

A new combination expands the range of the African araneid spider Singafrotypa (Araneae, Araneidae)

Study of the syntype of Larinioides subinermis, a species known from Ethiopia only, revealed that it actually belongs to Singafrotypa Benoit, 1962. We redescribe Singafrotypa subinermis (Caporiacco, 1940), comb. n., and provide a key to females of four species belonging to Singafrotypa. A distribution map for all species is provided.     

Roots: The discovery of chloroplast DNA

In the space of three years–from 1962 to 1964 – the proposition that chloroplasts contain their own DNA made the transition from being a controversial hypothesis to an accepted dogma. The crucial evidence came from biochemical analyses of the organelles themselves and from cytological studies. These discoveries revolutionized our views on the distribution of genetic information within the cell, and gave rise to the vigorous new field of chloroplast molecular biology. It is nevertheless ironic to recall that of the biochemical papers published on this topic in 1962–64, the one which was probably the most influential in creating the new paradigm was in fact quite wrong, and attributed to the chloroplast, DNA species which did not in reality belong to this organelle at all.     

Morphological descriptions of new and little-known benthic ciliates from Ganghwa tidal flat, Korea

Ciliates are highly diverse in the benthos where there are rare species to be unrevealed and described. By isolating species during successive and diversified cultivations, we discovered several new and interesting taxa from the top layer sediment of a muddy site in the Ganghwa tidal flat. These include three new species Spirodysteria ganghwaensis n. sp., Uronemella parafilificum n. sp., Zosterodasys minuta n. sp., and one poorly known form Loxophyllum chaetonotumBorror 1965. The morphology of live cells and infraciliature of these four species are described based on living observations, protargol impregnations, and morphometrics. Diagnoses and improved definitions are also provided. The newly established genus Spirodysteria n. g. differs from Dysteria mainly in its spirally twisted body shape. Spirodysteria kahli (Tucolesco 1962) n. comb. (formerly Dysteria kahliTucolesco 1962) has been included in this new genus.     

Ctenophthalmus rettigi Rothschild, 1908 (Hystrichopsyllidae) fleas of Mesocricetus

Fleas of Ctenophthalmus rettigi Rothschild, 1908 (12 females, 12 males) collected in 1980 and 1982 in the northern Caucasus in the Levashi District of Dagestan not far from the village of Urma were referred by the authors to the nominative subspecies described from Romania. According to their taxonomic characters fleas of this species, collected in different places of Transcaucasia, are also referred to the nominative subspecies and not to C. rettigi smiti Klein, 1962, as before (Rostigaev, 1967; Tiflov, Skalon, Rostigaev, 1977 and others). The ways of distribution of hosts of C. rettigi fleas are suggested.     

从原生动物变化看武汉东湖富营养化的发展

作者于1981年3月至1982年4月对武汉东湖Ⅱ站的原生动物进行了定量采集,采集结果与1962年该站的原生动物的种群数量变动作了比较。二十年内Ⅱ站的原生动物年平均量增加了2.3倍,平均每年增长294个/升。原生动物的数量增长与湖水中饵料生物(如藻类、细菌)和营养物质(如氮、磷)数量的增加是密切相关的。年数量变动的春季高峰期比过去提早出现,秋季高峰期则比过去延续的时间长,高峰期的原生动物的数量都比过去高。种类组成、特别是优势种发生了演替。通过对Ⅱ站原生动物多样性指数的改变、种量季节变动特征的分析,作者认为东湖的中心区在加速富营养化的进程,并且正向受到有机质严重污染的水果湖区(Ⅰ(Ⅳ))站过渡。       

Redescription of two Dicyemennea (Phylum: Dicyemida) from Rossia pacifica (Mollusca: Cephalopoda: Decapoda)

Two species of dicyemid mesozoan are redescribed from Rossia pacifica Berry, 1911, collected off Iwase in Toyama Bay, Honshu, Japan. Dicyemennea brevicephaloides Bogolepova-Dobrokhotova, 1962, is a large species that reaches about 4,000 microm in length. This species attaches to the surface of the branchial heart appendages. The vermiform stages are characterized as having 23 peripheral cells, a disc-shaped calotte, and an axial cell that extends to the propolar cells. An anterior abortive axial cell is absent in vermiform embryos. Infusoriform embryos consist of 35 cells; a single nucleus is present in each urn cell and the refringent bodies are absent. Dicyemennea rossiae Bogolepova-Dobrokhotova, 1962, is a medium species that reaches about 2000 microm in length. This species lives in folds of the renal appendages. The vermiform stages are characterized as having 29-34 peripheral cells, a conical calotte, and an axial cell that extends to the middle of the metapolar cells. An anterior abortive axial cell is present in vermiform embryos. Infusoriform embryos consist of 39 cells; 2 nuclei are present in each urn cell and the refringent bodies are solid.     

ZOOPLANKTON OF LAKES MUTANDA, BUNYONYI AND MULEHE

Quantitative samples of zooplankton from three lakes in the Kigezi District of Uganda have been studied. The systematics of the zooplankton are considered, and some of the identifications given by Worthington & Ricardo (1936) in a previous study of one of these lakes are revised.
Lake Mulehe is the shallowest of the three lakes and contains the largost standing crop of zooplankton. This is in agreement with chemical data which indicato that the supply of nutrient salts in Lake Mulehe is higher than in the other two lakes.
In October 1962 the zooplankton of Lake Mutanda was characterized by the relative abundance of three species of Daphnia which were not found in the samples from the other lakes, although two of these species were present in Lake Bunyonyi in 1931. Rotifers were sparse in Lako Mutands, but here dominant by Tetramastix opoliensis. Lake Bunyonyi was richer in rotifers, but here the dominant species was Keratella tropica , whilo in Lake Mulehe the dominant rotifer was Synchaeta pectinata.
The zooplankton of Lake Mutanda in October 1962 was similar in composition to that of Lake Bunyonyi in 1931, but in 1962 the zooplankton of Lake Bunyonyi was more like that of Lake Mulehe. The possible causos of this change are discussed.     

Weight change in male Reed Buntings

A slow but steady increase in Sparrowhawk numbers has brought the species to a level where CBC monitoring has become practical; but numbers are still rather low, so that values for annual changes have wide confidence limits. 1962-1974 data are too few for index calculations, but an indication of the overall trend can be obtained from the annual proportion of CBC plots recording Sparrowhawks.     

THE GENUS PROTOSTELIUM

Olive , L. S. (Columbia U., New York, N. Y.) The genus Protostelium . Amer. Jour. Bot. 49(3): 297–303. Illus. 1962.—Two new species of this simplest genus of the cellular slime molds are described: P. fimicola , a species with spherical spores and gelatinizing stalks occurring on dung, and P. arachispora , an elongate-spored species from dead plant material. The first has been found in North Carolina and the West Indies, while the second species has been found only once in North Carolina. Protostelium mycophaga var. major , from Connecticut, has distinctly larger spores than the original species. Further data on the distribution and development of P. mycophaga are presented. The genus is transferred to a family of its own, the Protosteliaceae .     

The phytosociology of British sea-cliff vegetation with special reference to the ecophysiology of some maritime cliff plants

The major factors thought to control the distribution of associations on the sea cliffs in Britain are discussed in relation to the zonation of cliff vegetation, and some experiments to investigate the effects of these factors are described.The seeds of the maritime cliff species are able to germinate in higher salinities than those of closely related inland species.Relative growth rates of maritime cliff species indicate stimulation at low salinities over non-saline conditions, and less reduction in growth at higher salinities than those of closely related inland species.Increasing salinity reduces both photosynthesis and dark respiration in Lavatera arborea. Mesophyll and stomatal resistances are increased while transpiration is reduced.The distribution of ions within Lavatera arborea grown at different salinities indicates differential accumulation between young leaves, old leaves and roots.Nomenclature follows Clapham, Tutin & Warburg (1962).     

Vespidae (Hymenoptera) of Vietnam 3: Synoptic key to Vietnamese species of the polistine genus Ropalidia, with notes on taxonomy and distribution

Nineteen species of the paper wasp genus Ropalidia are recorded from Vietnam, of which three are new records for Vietnam. A key to all of the species, distribution records and taxonomic remarks are given. New synonymies proposed are: Ropalidia bicolorata parvula van der Vecht, 1962, under R. bicolorata van der Vecht, 1962; R. hongkongensis juncta van der Vecht, 1941, under R. hongkongensis (de Saussure, 1854); Icaria jucunda Cameron, 1898, and R. marginata sundaica van der Vecht, 1941, under R. marginata (Lepeletier, 1836); R. rufocollaris atrata van der Vecht, 1941, under R. rufocollaris (Cameron, 1900); and R. stigma rufa van der Vecht, 1941 and R. stigma nigrolineata van der Vecht, 1962, under R. stigma (Smith, 1858).     

Changes in the zooplankton of Lakes Mutanda, Bunyonyi and Mulehe (Uganda)

Samples taken from Lake Mutanda in 1975 indicate that the specific composition of the zooplankton has changed from that in 1962. This change is very similar to that which occurred in Lake Bunyonyi sometime between 1931 and 1962. The most important aspect of the change is the disappearance of three species of Daphnia, together with Ceriodaphnia reticulata, Metadiaptomus aethiopicus, and Caridina nilotica. The 1975 samples indicate lower standing crops of zooplankton in all three lakes, and lower ratios of nauplii to copepodids than in 1962. The possibility of these changes being attributable to human activities is discussed.     

NEW SPECIES AND RECORDS OF POLYCHAETA FROM CEYLON

A collection of polychaetes made by the author in December 1961 and April 1962 from a number of places on the coast of Ceylon was examined. Seven new species and one new subspecies are described and sixteen species are recorded new to the fauna of Ceylon. The holotypes and lectotypes have been deposited in the British Museum (Natural History).     

A study of the genus Aleuritopteris Fée in China

As a genus, Aleuritopteris was first founded by Fée upon Pteris farinosa Forsk. in 1852. The genus had been ever since, however, practically forgotten, because it did not receive a general recognition among the fern students, who considered it either as Cheilanthes (Baker. 1897, Diels, 1900, C. Christensen 1905), or placed it in Pellaea (Hooker. 1858, Hope et Wright 1903). Ching (1941) first reinstated the status of Aleuritopteris and later followed by Copeland (1947), Panigrahi (1961, 1962.) and Pichi-Sermolli (1975). In recent years, however, some pteridologists (Nayar, 1962, K. Iwatsuki and others) are still against it as a distinct genus. Our recent study of the rich material on hand has shown Aleuritopteris to be a distinct genus, according to both the morphological characteristics and geographical distribution. We further propose the possibly evolutionary relationships of Aleuritopteris with other related genera of the Cheilanthoid ferns, as indicated by the above scheme. The genus is now represcented by a little more than 30 species, of which 25 areknown in China, among which 8 species and 3 varieties are diescribed for the first time.