The microsculpture of the shell of Rectartemon (Rectartemon) depressus (Heynemann) (Gastropoda, Stylomatophora, Streptaxidae)

The microsculpture of Rectartemon depressus (Heynemann, 1868) shell is described on scanning electron microscope. The generics characteristics are proposed: shell's dorsal sculture formed for ribs striae radial; nuclear whorls smooth; ventral surface of the shell smooth or slightly striate; and...

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Bibliographic Details
Published in:Revista brasileira de zoologia 1998-03, Vol.15 (1), p.117-124
Main Authors: Picoral, M, Lopes-Pitoni, V L
Format: Article
Language:Portuguese
Subjects:
Gastropoda
Rectartemon depressus
Streptaxidae
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Description
Summary:The microsculpture of Rectartemon depressus (Heynemann, 1868) shell is described on scanning electron microscope. The generics characteristics are proposed: shell's dorsal sculture formed for ribs striae radial; nuclear whorls smooth; ventral surface of the shell smooth or slightly striate; and as specifics characteristics: the number of ribs striae radial on the last whorl. The R. (R.) depressus presented seven or eight ribs striae radial for millimeter.
ISSN:0101-8175