scholarly journals A COMPARATIVE MORPHOLOGY OF THE ALIMENTARY CANAL IN THE ADULTS OF GROUND-BEETLES (COLEOPTERA) I. CLASSIFICATION INTO THE TYPES

ESAKIA ◽  
10.5109/2524 ◽  
1990 ◽  
Vol Special Issue 1 ◽  
pp. 35-44
Author(s):  
Katsuro Yahiro
Keyword(s):  
Alimentary Canal ◽  
Comparative Morphology ◽  
Ground Beetles

I.—The Œsophagus of the Stenoglossan Prosobranchs

1941 ◽  
Vol 61 (1) ◽  
pp. 1-23 ◽  
Author(s):  
Alastair Graham
Keyword(s):  
Alimentary Canal ◽  
Anterior Part ◽  
Comparative Morphology

The structure of the anterior part of the alimentary canal of stenoglossan prosobranchs has been previously investigated by several workers, of whom the most important are Haller (1888) and Amaudrut (1898), although Haller's account, accurate so far as it goes, was published before there was any real knowledge of the comparative morphology of that part of the prosobranch gut. This knowledge we owe to Amaudrut, but in the case of the stenoglossan œsophagus the description which he gives is wrong, the various parts being orientated upside down.

OBSERVATIONS ON THE LIFE CYCLES OF DIPLOTRIAENOIDES TRANSLUCIDUS ANDERSON AND MEMBERS OF THE GENUS DIPLOTRIAENA

1957 ◽  
Vol 35 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Roy C. Anderson
Keyword(s):  
Definitive Host ◽  
Alimentary Canal ◽  
Ground Beetles ◽  
Life Cycles ◽  
Land Snails ◽  
The Body ◽  
Agelaius Phoeniceus ◽  
Seiurus Aurocapillus ◽  
Field Crickets ◽  
Air Sacs

Diplotriaenoides translucidus Anderson, 1956 from Seiurus aurocapillus L. and various species of Diplotriaena from Quiscalus quiscula (L.), Vermivora ruficapilla (Wilson), and Agelaius phoeniceus (L.) were found in the air sacs of their hosts. The eggs of D. translucidus and the Diplotriaena sp. from the grackle were found in the lungs and contents of the alimentary canal. It seems most likely that the eggs of all members of the subfamily Diplotriaeninae leave the definitive host via the lungs and faeces. Eggs of D. translucidus were fed to a variety of invertebrates. Spirurid larvae, found in the body cavities of grasshoppers (Camnula pellucida (Scudder)) that were fed eggs, are considered to belong to D. translucidus; these larvae are described. No spirurid larvae were found in ground beetles, field crickets, tenebrionids, camel crickets, ants, or land snails that were fed eggs. Similarly no spirurid larvae were found in blowflies, dung beetles, hister beetles, or earthworms that were fed eggs of the Diplotriaena sp. from Q. quiscula.

Comparative Morphology of Intercellular Bridges Between Developing Germ Cells of the Ovary

1970 ◽  
Vol 28 ◽  
pp. 328-329
Author(s):  
J. R. Ruby ◽  
R. F. Dyer ◽  
R. G. Skalko ◽  
R. F. Gasser ◽  
E. P. Volpe
Keyword(s):  
Germ Cells ◽  
Rana Pipiens ◽  
Comparative Morphology ◽  
Dense Material ◽  
Individual Species ◽  
Microscope Examination ◽  
Electron Dense Material ◽  
Intercellular Bridges ◽  
Cytoplasmic Side ◽  
Intercellular Connections

An electron microscope examination of fetal ovaries has revealed that developing germ cells are connected by intercellular bridges. In this investigation several species have been studied including human, mouse, chicken, and tadpole (Rana pipiens). These studies demonstrate that intercellular connections are similar in morphology regardless of the species.Basically, all bridges are characterized by a band of electron-dense material on the cytoplasmic side of the tri-laminar membrane surrounding the connection (Fig.l). This membrane is continuous with the plasma membrane of the conjoined cells. The dense material, however, never extends beyond the limits of the bridge. Variations in the configuration of intercellular connections were noted in all ovaries studied. However, the bridges in each individual species usually exhibits one structural characteristic seldom found in the others. For example, bridges in the human ovary very often have large blebs projecting from the lateral borders whereas the sides of the connections in the mouse gonad merely demonstrate a slight convexity.

Comparative morphology of Pneumocystis Carinii in Situ and after bronchoalveolar lavage

1986 ◽  
Vol 44 ◽  
pp. 244-245
Author(s):  
C. A. Itatani ◽  
A. Hing ◽  
W. Jackson ◽  
G.J. Marshall
Keyword(s):  
Bronchoalveolar Lavage ◽  
Pneumocystis Carinii ◽  
Comparative Morphology

Pneumocystis carinii (PC) is an organism capable of causing fatal pneumonia in immune suppressed individuals and has recently gained prominence because of its association with AIDS. A similar organism occurs in rats and infection may be induced with cortisone injections. In order to isolate PC for further study bronchoal veol ar lavage (BAL) was performed. Differences in the ul trastructure of BAL-obtained organisms and PC in situ were observed and are herein reported.

Comparative Morphology of Skeletal Muscles in Man and Macaque

1993 ◽  
Vol 5 (2) ◽  
pp. 137-146
Author(s):  
Seiichiro INOKUCHI ◽  
Tadanao KIMURA ◽  
Masataka SUZUKI ◽  
Junji ITO ◽  
Hiroo KUMAKURA
Keyword(s):  
Skeletal Muscles ◽  
Comparative Morphology

Carabidae of Barnaul city parks: ecological characteristics and species composition

2018 ◽  
Vol 8 (2) ◽  
pp. 348-353
Author(s):  
E. A. Kuchina ◽  
N. D. Ovcharenko ◽  
L. D. Vasileva
Keyword(s):  
Species Composition ◽  
Diversity Index ◽  
Similarity Index ◽  
Life Forms ◽  
Ground Beetles ◽  
Forest Steppe ◽  
Ecological Groups ◽  
Dominant Group ◽  
Species Diversity Index ◽  
Steppe Species

<p>Anthropogenic impact on the population of ground beetles leads to a change in their numbers, structure of dominance, density, species composition, spectrum of life forms. This makes the beetles Carabidae a convenient and informative bioindicator of the ecological state of biocenoses. The material for this work was the Carabidae collections conducted in June-August 2016-2017 in the park zone of different regions of Barnaul, differing in location, area, hydrological regime, vegetation cover, purpose and anthropogenic load. When processing the material, the quantitative, species and generic composition of the carabidae was determined, calculations were made for such indicators as the Berger-Parker dominance index, the Shannon species diversity index (Hs), and the Jacquard species similarity index. The fauna (Coleoptera, Carabidae) of the park zone of Barnaul is represented by 55 species belonging to 20 genera. The dominant group is represented by species belonging to steppe, forest and polyzonal groups. Forest-steppe species of ground beetles as dominants have not been identified in any of the investigated territories. The greatest variety of ecological groups was noted on the territory of the Yubileyny рark, which is explained by the presence of zones with various microclimatic conditions, the presence of a birch grove that flows through the park with the Pivovarka River, and a wide log in the park. Registered species belong to eight groups of life forms belonging to two classes - zoophagous and myxophytophagous. On the numerical and species abundance, zoophages predominate. The spectrum of life forms corresponds to the zonal spectrum characteristic of the forest-steppe zone.</p><p> </p>

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