摘要
Scanning electron microscopy (SEM) was used to compare the micromorphology of the male first gonopods (G1) of 22 species of common Taiwanese potamid crabs of the genus Geothelphusa Stimpson, 1858. Electron micrographs were taken from dorsal, lateral, and apical views of the terminal segment, the sub-terminal segment, and the synovial membrane; and a total of five measurements was taken, i.e., synovial membrane length (SML) and width (SMW), sub-terminal segment width (SW), and terminal segment length (TSL) and width (TSW). In addition, the diameter of the apical opening of the ejaculatory canal (AD), the number of scale rings, the setal type, and the direction of the curve of the tip of the terminal segment were recorded. In adult female crabs, the mean of the diameter of the gonopores and the distance between these were also measured. The scanning electron micrographs of the G1 are all shown in the present paper.
- 出版日期2007-7
- 单位中山大学